Indoor electrical wiring systems and methods
By dividing the area into zones and using power transmission trunk lines for power supply, combined with circuit breaker management, the problems of numerous lines and lack of protection functions in the existing circuit wiring have been solved, achieving the effect of simplifying the line structure and improving the convenience of maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-10-14
- Publication Date
- 2026-04-03
AI Technical Summary
Existing circuit wiring methods differentiate wiring based on the purpose of electrical equipment, resulting in numerous and cumbersome lines, increased material usage and construction time, while lacking effective protection functions and ease of maintenance.
By adopting a regional division and power transmission trunk line power supply method, the region is divided into areas by calculating the power consumption and location relationship of each area, and circuit breakers are used for independent management, simplifying the line structure and setting overload, short circuit and leakage protection.
It simplifies the wiring structure of the circuit system, saves materials and labor time, improves the protection function and maintenance convenience of the circuit, and realizes independent power management and independent fault protection in each area.
Smart Images

Figure CN113889988B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of power transmission and distribution, and more particularly to an indoor circuit wiring system and method. Background Technology
[0002] In both residential and commercial electrical wiring, the common practice is to separate wires according to the purpose of the electrical equipment. For example, in home wiring, lighting appliances run on a separate wire, air conditioning units on a separate wire, kitchen appliances on a separate wire, and five-hole sockets on a separate wire. A typical three-bedroom apartment requires six to eight separate wires from the distribution box. It's clear that this method of wiring according to the purpose of electrical equipment generally results in numerous and complex wiring patterns, increasing material usage and extending the construction period. Summary of the Invention
[0003] The main objective of this invention is to provide an indoor circuit wiring system and method, which aims to solve the problem of cumbersome circuit system structure caused by wiring according to the purpose of electrical equipment.
[0004] To achieve the above objectives, the present invention provides an indoor circuit wiring system, wherein the indoor area includes multiple zones, each zone including at least one power-consuming unit. The indoor circuit wiring system includes: power distribution equipment and at least one set of power transmission trunk lines. Each set of power transmission trunk lines has an input end and an output end. The input end of each set of power transmission trunk lines is connected to the output end of the power distribution equipment. The output end of each set of power transmission trunk lines is used to connect to the power-consuming unit in at least one zone. The total power consumption of the power-consuming unit connected to the output end of each set of power transmission trunk lines is less than or equal to a preset load power.
[0005] Optionally, the indoor wiring system further includes multiple circuit breakers, with one circuit breaker installed in each area. The incoming terminal of the circuit breaker is connected to the output terminal of the power transmission trunk line corresponding to the area, and the outgoing terminal of the circuit breaker is connected to the power consumption unit in the area.
[0006] Optionally, when the number of regions corresponding to the output end of the power transmission trunk line is greater than 1, the incoming end of the circuit breaker corresponding to the region closest to the power distribution equipment is connected to the output end of the power transmission trunk line, and the incoming ends of the remaining circuit breakers are connected to the incoming ends of the previous level circuit breaker in order of the distance between the corresponding region and the power distribution equipment from closest to furthest.
[0007] Optionally, the indoor circuit wiring system further includes at least one circuit breaker, the incoming terminal of which is connected to the output terminal of the main power transmission line, and the outgoing terminal of which is connected to the power consumption unit corresponding to the main power transmission line.
[0008] Optionally, the circuit breaker is used to output power supply current when the connected power unit is working normally, and to stop outputting power supply current when the connected power unit experiences overload, short circuit or leakage.
[0009] Optionally, the circuit breaker is also used to stop outputting power supply current when it detects that the current fluctuation exceeds a preset fluctuation range.
[0010] Furthermore, to achieve the above objectives, the present invention also provides an indoor circuit wiring method, wherein the indoor area includes multiple zones, each zone including at least one power-consuming unit, and the wiring method includes the following steps:
[0011] Calculate the total electricity consumption of each power-consuming unit in each area, and calculate the regional electricity consumption of each area based on the total electricity consumption;
[0012] Determine the positional relationship between each of the regions, and determine the target region that satisfies the preset region construction rules based on the positional relationship;
[0013] If there are multiple target areas, calculate the sum of the electricity consumption of each target area;
[0014] If the sum is less than or equal to the preset load power, then each target area is considered as a single region.
[0015] Each area is connected to the power distribution equipment through a set of power transmission trunk lines, so as to supply power to the power consumption units in the area through the power transmission trunk lines.
[0016] Optionally, each target area corresponding to each zone is equipped with a circuit breaker, and the step of connecting each zone to the power distribution equipment through a set of power transmission trunk lines to supply power to the power consumption units within the zone through the power transmission trunk lines includes:
[0017] The incoming end of the power transmission trunk line is connected to the power distribution equipment, and the outgoing end of the power transmission trunk line is connected to the incoming end of each circuit breaker.
[0018] Connect the outgoing terminals of each circuit breaker to all electrical units within the corresponding target area.
[0019] Optionally, when the number of target areas corresponding to the area is greater than 1, the step of connecting the outgoing end of the power transmission trunk line to the incoming end of each circuit breaker includes:
[0020] Based on the distance between the target area corresponding to each circuit breaker and the distribution box, the connection order of each circuit breaker is sorted to obtain the connection sequence.
[0021] Connect the outgoing end of the main power transmission line to the incoming end of the circuit breaker with the first connection order;
[0022] Connect the incoming terminals of the remaining circuit breakers to the incoming terminals of the previous circuit breaker in the order described above.
[0023] Optionally, each area is equipped with a corresponding circuit breaker, and the step of connecting each area to a distribution box via a set of main power transmission lines to supply power to the power consumption units within the area via the main power transmission lines includes:
[0024] The incoming terminals of the circuit breakers corresponding to each area are connected to the distribution box through a set of power transmission trunk lines, and the outgoing terminals of the circuit breakers corresponding to each area are connected to all the power-consuming units in the area.
[0025] This invention proposes an indoor circuit wiring system and method. The indoor space includes multiple areas, each including at least one power-consuming unit. The indoor circuit wiring system includes: power distribution equipment and at least one set of main power transmission lines. Each set of main power transmission lines has an input terminal and an output terminal. The input terminal of each set of main power transmission lines is connected to the output terminal of the power distribution equipment. The output terminal of each set of main power transmission lines is used to connect to the power-consuming unit in at least one area. The total power consumption of the power-consuming units connected to the output terminal of each set of main power transmission lines is less than or equal to a preset load power. This simplifies the wiring structure of the circuit wiring system. Generally, a three-bedroom apartment only needs two to three sets of main power transmission lines branching from the distribution box, greatly saving materials and labor time, and facilitating the repair of line faults. Attached Figure Description
[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0027] Figure 1 This is a schematic diagram of the indoor area distribution of an embodiment of the indoor circuit wiring system of the present invention;
[0028] Figure 2 This is a flowchart illustrating the first embodiment of the indoor circuit wiring method of the present invention.
[0029] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings.
[0030] Explanation of icon numbers:
[0031] label name label name 10 breaker 20 Distribution box 1~9 Area 1 to Area 9 a~c Main power transmission line Detailed Implementation
[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0033] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.
[0034] Currently, in the home and commercial decoration industry, the wiring is usually differentiated according to the different uses of electrical equipment. Generally, a three-bedroom household needs to split 6 to 8 circuits from the distribution box. These lines are connected from a unified distribution box and then each goes to a pre-set electrical terminal or socket or other electrical unit that needs to be connected to power.
[0035] However, this wiring method has four problems:
[0036] 1. The problem of broad protection range. A leakage fault in any electrical terminal will cause the main switch to trip, resulting in a complete power outage of the entire household circuit, causing great inconvenience in electricity use;
[0037] 2. Problem of missing protection functions. Because the residual current device (RCD) in the distribution box does not have overload protection, and the circuit breaker is only specifically designed for severe overloads, when a household experiences a mild overload (electricity consumption exceeds the line load limit by less than 10%), neither the RCD nor the circuit breaker will perform disconnection protection. Over time, the heat accumulated in the line experiencing the mild overload will increase, which can easily cause a fire.
[0038] 3. The structure is cumbersome, wasting materials and labor. These lines need to be pulled out one by one from the distribution box, resulting in an excessive number of lines, increasing material consumption and extending the construction period. As the economy develops and people's living standards improve, more and more home appliances will enter households. If this traditional method of differentiating wiring based on the purpose of electrical equipment continues, the structure will become increasingly cumbersome, and the consumption of materials and labor will increase significantly.
[0039] 4. Inconvenient for circuit maintenance. When a short circuit occurs in the existing wiring method, it is possible to determine which line is faulty by tripping the branch circuit breaker, and then carry out maintenance work step by step; however, if a leakage fault occurs, the leakage protection device, which is the main switch, will trip directly, making it impossible to determine where the leakage is occurring, and the corresponding maintenance work becomes complicated.
[0040] To address the above problems, the present invention provides an indoor circuit wiring system, referring to... Figure 1 The indoor area includes multiple zones, each zone including at least one electrical unit. The indoor wiring system includes: a power distribution device 20 and at least one set of power transmission trunk lines. Each set of power transmission trunk lines has an input end and an output end. The input end of each set of power transmission trunk lines is connected to the output end of the power distribution device 20. The output end of each set of power transmission trunk lines is used to connect to the electrical unit in at least one zone. The total power consumption of the electrical unit connected to the output end of each set of power transmission trunk lines is less than or equal to a preset load power.
[0041] The above-described indoor wiring system is suitable for indoor wiring scenarios such as home decoration and commercial decoration. The configuration of the patch panel 20 is existing technology and will not be described in detail here.
[0042] Reference Figure 1 The interior includes multiple areas, which can be divided into multiple independent areas such as area 1, area 2, and area 3 according to the walls, or they can be divided according to function, such as area 4 being the living room area and dining room area, area 2 being the study area, and area 1 being the master bedroom area, etc.
[0043] Understandably, whether it's residential or commercial renovation, the initial planning stages involve considering the functions of each area and the types and quantities of electrical equipment that might be needed in each area. Each area includes at least one electrical unit, which may include lighting fixtures, televisions, air conditioners, refrigerators, and possibly electrical outlets. For example, area 1 (the bedroom area) might require one lighting fixture, one air conditioner, one television, and four pre-installed electrical outlets (the outlets might be used for devices such as table lamps, mobile phones, and electric fans). Based on this planning, the total power consumption of all possible electrical units in area 1 can be calculated. The power consumption of an outlet is calculated based on the power consumption of any device that might draw power from that outlet. Similarly, the total power consumption of all electrical units in all areas can be calculated in this way. The total power consumption of each electrical unit is the total rated power of all the units involved in the calculation, or the total rated current corresponding to the total rated power.
[0044] When calculating total power consumption, you can reasonably estimate the usage of sockets based on usage habits and user needs, and calculate according to usage. For example, although there are 4 sockets reserved in Area 1 (bedroom area), the user's habit may be to plug in three electrical devices at the same time. Therefore, when calculating total power consumption, you can calculate it based on the usage of those three sockets. However, for the sake of electrical safety, the total power consumption can be calculated based on the situation where all sockets are plugged in electrical units.
[0045] The output end of each set of power transmission trunk lines is used to connect to power consumption units in at least one area; wherein, the total power consumption of the power consumption units connected to the output end of each set of power transmission trunk lines is less than or equal to the preset load power. Specifically, all areas can be divided into different zones according to the preset load power, and then the power consumption units corresponding to a zone can be connected to the output end of a set of power transmission trunk lines to supply power to the power consumption units in the corresponding zone through the power transmission trunk lines.
[0046] The method of dividing all areas into different zones based on a preset load power can be achieved using indoor circuit wiring. Indoor circuit wiring includes the following steps: calculating the total power consumption of electrical units in each zone; calculating the regional power consumption of each zone based on the total power consumption; determining the positional relationship between the zones; determining target zones that satisfy the preset zone construction rules based on the positional relationship; if multiple target zones exist, calculating the sum of the regional power consumption corresponding to each target zone; if the sum is less than or equal to the preset load power, then each target zone is considered as a zone; connecting each zone to power distribution equipment via a set of main power transmission lines to supply power to the electrical units within the zone via the main power transmission lines.
[0047] Calculating the regional power consumption for each area based on the total power consumption can be achieved by directly using the total power consumption of each electrical unit in each area as the regional power consumption for that area. For example, if the total power consumption of Area 1 (bedroom area) is 20A (or 4400W), then the regional power consumption for that area is 20A (or 4400W). Alternatively, a certain percentage (estimated based on experience or experimental theory) can be added to the total power consumption of each electrical unit in each area as a pre-incremental power consumption, and the total value is used as the regional power consumption for each area. For example, if the total power consumption of Area 1 (bedroom area) is 20A (or 4400W), then 20% of the pre-incremental power consumption is reserved. Therefore, the electricity consumption of that area is 120% of the total electricity consumption, i.e., 20A × 120% = 24A (or 4400W × 120% = 5280W). The same applies to other areas. Alternatively, you can estimate the electricity consumption separately for each area based on the possibility of adding new electrical equipment in the future, and reserve a percentage for the increased electricity consumption. For example, if the total electricity consumption of area 1 (bedroom area) is 20A (or 4400W), reserve 20% for the increased electricity consumption, so the electricity consumption of this area is 24A (or 5280W). If the total electricity consumption of area 5 (kitchen area) is 20A (or 4400W), reserve 30% for the increased electricity consumption, so the electricity consumption of this area is 26A (or 5720W).
[0048] It should be noted that in actual wiring, each area will have a main incoming line terminal. The mains power connected from the distribution box will supply power to each electrical unit through the main incoming line terminal. For ease of construction and material saving considerations, when determining the positional relationship between each area, it specifically refers to whether the areas are adjacent to each other and the positional relationship between the main incoming line terminals of each area.
[0049] The preset area construction rules can be based on whether the areas are adjacent, as shown in the following example. Figure 1 For example, if regions 5 and 6 are adjacent in location, then regions 5 and 6 can each be considered as a target area of a separate zone. Alternatively, they can be divided according to the distance between the main incoming lines. For example, the main incoming line of region 7 is closest to the main incoming line of region 2, so regions 7 and 2 can be considered as a target area of a separate zone. Another approach is to consider both the location of the regions and the location of the main incoming lines, such as region 1, region 2, and region 7 each being considered as a target area of a separate zone.
[0050] Area 4 comprises the living room and dining room. When determining the target area, the living room and dining room can be classified as a single target area, or they can be classified as separate target areas from other areas. Area 3 is the balcony area. However, in practical applications, the balcony may only have a washing machine and a light fixture. Therefore, the balcony area and the living room area can be classified as a single target area, or they can be classified as two separate target areas.
[0051] The preset load capacity can be set based on experimental data or experience, such as 20A (or 4400W), 24A (or 5280W), 30A (or 6600W), 36A (or 7920W), etc. The setting of the load capacity takes into account the carrying capacity of the transmission line.
[0052] If there are multiple target areas, and the sum of the power consumption of each target area is less than or equal to the preset load power, then each target area is considered as a single area. For example, if the preset load power is 24A (or 5280W), and the power consumption of area 5 is 13.6A (or 3000W) and the power consumption of area 6 is 10A (or 2200W), and their sum is less than 24A (or 5280W), then area 5 and area 6 can be considered as a single area.
[0053] If the sum is greater than the preset load power, the difference between the sum and the preset load power is calculated, and each target area is filtered based on the difference, with the filtered target areas forming a single region. Specifically, filtering the target areas based on the difference can be done by combining the difference with the regional power consumption of each target area.
[0054] For example, Region 4 is adjacent to Regions 5 and 6 and can be considered as a single target area. However, the power consumption of Region 4 is 18A (or 39600W), Region 5 is 13A (or 2860W), and Region 6 is 10A (or 2200W). The sum of these three region power consumptions is 41A (or 9020W), which is greater than the preset load power of 24A (or 5280W). The difference is calculated to be 17A (or 3740W). Based on this difference and the utilization rate of the cable, it is more appropriate to separate Region 4. Therefore, the selected target areas are Regions 5 and 6, which are considered as a single area. Of course, if after separating Region 4, the difference between the sum of Regions 5 and 6 and the preset load power is large, other regions can be combined with Regions 5 and 6 as target areas for this area, and the sum can be calculated again to divide the area.
[0055] It should be noted that if the electricity consumption of region 4 is relatively large, and it is not appropriate to divide it into a separate area with other regions, region 4 can also be a separate area.
[0056] The main power transmission line is a power transmission wire. If the main power transmission line connects only one target area, the power consumption of that area must be less than or equal to the wire diameter load current limit of the main power transmission line. If the main power transmission line connects several target areas simultaneously, the total power consumption of the subordinate target areas must be less than or equal to the wire diameter load current limit of the main power transmission line. The selection of the main power transmission line needs to be based on the preset load power setting. For example, when the preset load power is set to 30A (or 6600W) or 36A (or 7920W), considering the load-bearing capacity of the power transmission line, the main power transmission line should be a power transmission wire with a cross-sectional area of 6 square millimeters. When the preset load power is set to 20A (or 4400W) or 24A (or 5280W), the cross-sectional area of the main power transmission line must be at least 4 square millimeters. For economic reasons, a power transmission wire with a cross-sectional area of 4 square millimeters is selected in this case.
[0057] In this implementation, based on the fact that the power consumption of a given area is less than or equal to the preset load power, the entire indoor area is divided into one or more separate areas. Each of these separate areas is then assigned to and connected to a set of main lines, forming a "root system expansion" structure where a distribution box sends out one set of main lines connecting to a single subordinate area, or multiple sets of main lines connecting to multiple subordinate separate areas. This simplifies the wiring structure of the electrical wiring system. (Refer to...) Figure 1For a three-room layout, only three main circuits (group A, group B, and group C) need to be branched off from the distribution box. By dividing the area into zones and supplying power to each zone separately via the main power transmission line, the wiring structure of the circuit system is simplified, greatly saving materials and labor time, while also facilitating the inspection and repair of line faults.
[0058] Furthermore, the indoor circuit wiring system also includes multiple circuit breakers 10, with one circuit breaker 10 installed in each area. The incoming terminal of the circuit breaker 10 is connected to the output terminal of the power transmission trunk line corresponding to the area, and the outgoing terminal of the circuit breaker 10 is connected to the power consumption unit in the area.
[0059] The circuit breaker 10 is used to output power supply current when the connected electrical unit is working normally; and to stop outputting power supply current when the connected electrical unit experiences overload, short circuit, or leakage. In other words, the circuit breaker 10 is a circuit breaker with short-circuit protection, leakage protection, and overload protection functions. The power consumption of each area is less than or equal to the rated power consumption of the circuit breaker 10. The main power transmission line transmits power through the incoming terminal of the circuit breaker 10. Each main power transmission line is responsible for transmitting the total power supply to all areas under the jurisdiction of a single district. The main power transmission line does not directly connect to the electrical units within the area, but connects to the incoming terminals of the circuit breakers 10 in each area. After the current is circulated by the circuit breaker 10, the outgoing terminals of the circuit breaker connect to the corresponding electrical units within the area, forming a vertical structure of circuit breakers, main power transmission lines, and electrical units within the corresponding areas.
[0060] After the main power transmission line circuit is connected to circuit breaker 10, when a short circuit, leakage current, or overload fault occurs in any of the power consumption units connected to the outgoing terminals of circuit breaker 10, circuit breaker 10 will stop supplying current to the connected power consumption units, ensuring that the area enters a power outage protection state. However, if no short circuit, leakage current, or overload fault occurs in other areas under the same main power transmission line, the circuit breakers in the fault-free areas will operate normally, and the power consumption units connected to their outgoing terminals will use power normally. This is because the circuit breakers installed in each area are only responsible for the power consumption management of the power consumption units connected to their outgoing terminals and will not affect the circuit flow on the main power transmission line connected to the incoming terminals. In other words, if the main power transmission line connects several subordinate areas, and a short circuit, leakage current, or overload fault occurs in one of the areas, the circuit breaker installed in that faulty area will perform a separate disconnection protection, while the circuit breakers in other fault-free areas under the same main power transmission line will continue to supply power normally. Based on this, this solution can make each area where a circuit breaker 10 is installed an independent area, enabling independent management of electricity consumption and circuit faults in each independent area.
[0061] Furthermore, when the number of regions corresponding to the output end of the power transmission trunk line is greater than 1, the incoming end of the circuit breaker corresponding to the region closest to the power distribution equipment is connected to the output end of the power transmission trunk line, and the incoming ends of the remaining circuit breakers are connected to the incoming ends of the previous level circuit breaker in order of the distance between the corresponding region and the power distribution equipment from closest to farthest.
[0062] When a group of zones corresponds to only one target area, simply connect the incoming line of the circuit breaker 10 for that target area to the distribution box via the main power transmission line. When a group of zones corresponds to more than one target area (i.e., two or more target areas), preferably, connect to the distribution box's incoming line according to the principle of proximity. That is, take the target area closest to the distribution box as the first connection sequence, connect its incoming line to the distribution box via the main power transmission line, and then connect a main power transmission line in parallel from the incoming line of the circuit breaker 10 to the incoming line of the next circuit breaker 10, and so on. (Refer to...) Figure 1 For example, the distance between area 5 and the distribution box is closer than that between area 6. Therefore, the connection sequence of circuit breaker 10 in area 5 is the first level, and that in area 6 is the second level. The wiring method of the main power transmission line is as follows: after the main power transmission line is connected to the incoming terminal of circuit breaker 10 installed in area 5, a set of main power transmission lines is connected in parallel from the incoming terminal of circuit breaker 10 to the incoming terminal of circuit breaker 10 installed in area 6, and so on.
[0063] It should also be noted that when connecting the incoming terminals of the remaining circuit breakers 10 to the incoming terminals of the previous circuit breaker 10 in the order described above, the main power transmission line may not be used, as long as the carrying capacity of the power transmission line can meet the regional power consumption of the area corresponding to the lower-level circuit breaker 10.
[0064] Furthermore, the indoor circuit wiring system also includes at least one circuit breaker, the incoming end of which is connected to the output end of the main power transmission line, and the outgoing end of which is connected to the power consumption unit corresponding to the main power transmission line.
[0065] In this embodiment, each area is equipped with a circuit breaker, which manages all electrical units within the area. When a short circuit, leakage, or overload fault occurs in any of the electrical units connected to the outgoing terminals, the circuit breaker will stop supplying current to all electrical units in that area, ensuring that that area enters a power outage protection state, while other areas continue to operate independently. Based on this, the independent operation of each area can be achieved in this solution.
[0066] It should be noted that, in actual wiring, depending on the specific circumstances, a circuit breaker can be installed in a single area or in a single target area within the area, allowing for flexible configuration.
[0067] Furthermore, the circuit breaker is used to output power supply current when the connected power unit is working normally; and to stop outputting power supply current when the connected power unit experiences overload, short circuit or leakage.
[0068] In this embodiment, the overload is a mild overload, which refers to an overload in the circuit that does not reach the standard that would trigger the tripping protection of a normal circuit breaker. Prolonged mild overload can lead to a gradual accumulation of temperature rise, eventually resulting in a fire. By selecting a circuit breaker with triple protection functions (overload, short circuit, or leakage current), the circuit can be fully protected against all faults, truly enabling independent operation of each target area. If the selected circuit breaker does not protect against leakage current, the distribution box will trip when a leakage occurs in the power unit, making it impossible to truly achieve independent operation of each target area. Similarly, the lack of overload protection will inevitably pose a significant safety hazard.
[0069] Of course, circuit breakers can also have over-temperature and over-current protection functions to provide more comprehensive protection for circuit safety. They can also have alarm functions, which will sound an alarm when a circuit fault occurs to remind users to discover the fault in time and troubleshoot potential safety hazards.
[0070] Furthermore, the circuit breaker is also used to stop outputting power supply current when it detects that the current fluctuation exceeds a preset fluctuation range.
[0071] In this embodiment, the circuit breaker can detect faults bidirectionally. When the peak value of the current waveform at the circuit breaker's output terminal exceeds a preset fluctuation range, it indicates that a sudden load short circuit or other similar situation may occur in the circuit. At this time, the circuit breaker stops supplying power to all connected electrical units, promptly predicting and protecting against potential faults, thus further ensuring electrical safety. The preset fluctuation range can be a specific parameter of the circuit breaker and can be selected according to the actual situation of the electrical units; it is not limited here.
[0072] To achieve the above objectives, the present invention also provides an indoor circuit wiring method, wherein the indoor area includes multiple zones, and each zone includes at least one electrical unit, such as... Figure 2 As shown, Figure 2 This is a flowchart illustrating a first embodiment of the indoor circuit wiring method of the present invention, wherein the indoor circuit wiring method includes the following steps:
[0073] Step S100: Calculate the total power consumption of the power-consuming units in each area, and calculate the regional power consumption of each area based on the total power consumption;
[0074] Reference Figure 1The interior space comprises multiple areas, which can be divided into independent areas such as Area 1, Area 2, Area 3, etc., based on walls, or by function. For example, Area 4 might be the living room and dining room, Area 2 the study, and Area 1 the master bedroom. Understandably, whether for residential or commercial renovations, the initial planning stages will consider the types and quantities of electrical equipment that might be needed in each area based on its function. Each area will include at least one electrical unit, which may include lighting fixtures, televisions, air conditioners, refrigerators, and possibly electrical outlets. For example, if Zone 1 (bedroom area) requires one light fixture, one air conditioner, one television, and four pre-installed sockets (sockets may be used for devices such as table lamps, mobile phones, and electric fans), then based on this plan, the total power consumption of all possible electrical units in Zone 1 can be calculated. The power consumption of a socket is calculated based on the power consumption of the devices that may draw power through that socket. Similarly, the total power consumption of all electrical units in all zones can be calculated in this way. The total power consumption of each electrical unit is the total rated power of all electrical units involved in the calculation, or the total rated current corresponding to the total rated power.
[0075] When calculating total power consumption, you can reasonably estimate the usage of sockets based on usage habits and user needs, and calculate according to usage. For example, although there are 4 sockets reserved in Area 1 (bedroom area), the user's habit may be to plug in three electrical devices at the same time. Therefore, when calculating total power consumption, you can calculate it based on the usage of those three sockets. However, for the sake of electrical safety, the total power consumption can be calculated based on the situation where all sockets are plugged in electrical units.
[0076] Calculating the regional power consumption for each area based on the total power consumption can be achieved by directly using the total power consumption of each electrical unit in each area as the regional power consumption for that area. For example, if the total power consumption of Area 1 (bedroom area) is 20A (or 4400W), then the regional power consumption for that area is 20A (or 4400W). Alternatively, a certain percentage (estimated based on experience or experimental theory) can be added to the total power consumption of each electrical unit in each area as a pre-incremental power consumption, and the total value is used as the regional power consumption for each area. For example, if the total power consumption of Area 1 (bedroom area) is 20A (or 4400W), then 20% of the pre-incremental power consumption is reserved. Therefore, the electricity consumption of that area is 120% of the total electricity consumption, i.e., 20A × 120% = 24A (or 4400W × 120% = 5280W). The same applies to other areas. Alternatively, you can estimate the electricity consumption separately for each area based on the possibility of adding new electrical equipment in the future, and reserve a percentage for the increased electricity consumption. For example, if the total electricity consumption of area 1 (bedroom area) is 20A (or 4400W), reserve 20% for the increased electricity consumption, so the electricity consumption of this area is 24A (or 5280W). If the total electricity consumption of area 5 (kitchen area) is 20A (or 4400W), reserve 30% for the increased electricity consumption, so the electricity consumption of this area is 26A (or 5720W).
[0077] Step S200: Determine the positional relationship between each region, and determine the target region that satisfies the preset region construction rules based on the positional relationship;
[0078] It should be noted that in actual wiring, each area will have a main incoming line terminal. The mains power connected from the distribution box will supply power to each electrical unit through the main incoming line terminal. For ease of construction and material saving considerations, when determining the positional relationship between each area, it specifically refers to whether the areas are adjacent to each other and the positional relationship between the main incoming line terminals of each area.
[0079] The preset area construction rules can be based on whether the areas are adjacent, as shown in the following example. Figure 1 For example, if regions 5 and 6 are adjacent in location, then regions 5 and 6 can each be considered as a target area of a separate zone. Alternatively, they can be divided according to the distance between the main incoming lines. For example, the main incoming line of region 7 is closest to the main incoming line of region 2, so regions 7 and 2 can be considered as a target area of a separate zone. Another approach is to consider both the location of the regions and the location of the main incoming lines, such as region 1, region 2, and region 7 each being considered as a target area of a separate zone.
[0080] Area 4 comprises the living room and dining room. When determining the target area, the living room and dining room can be classified as a single target area, or they can be classified as separate target areas from other areas. Area 3 is the balcony area. However, in practical applications, the balcony may only have a washing machine and a light fixture. Therefore, the balcony area and the living room area can be classified as a single target area, or they can be classified as two separate target areas.
[0081] Step S300: If there are multiple target areas, calculate the sum of the electricity consumption of each target area.
[0082] Step S400: If the sum is less than or equal to the preset load power, then each target area is treated as a single area.
[0083] The preset load capacity can be set based on experimental data or experience, such as 20A (or 4400W), 24A (or 5280W), 30A (or 6600W), 36A (or 7920W), etc. The setting of the load capacity takes into account the carrying capacity of the transmission line.
[0084] If there are multiple target areas, and the sum of the power consumption of each target area is less than or equal to the preset load power, then each target area is considered as a single area. For example, if the preset load power is 24A (or 5280W), and the power consumption of area 5 is 13.6A (or 3000W) and the power consumption of area 6 is 10A (or 2200W), and their sum is less than 24A (or 5280W), then area 5 and area 6 can be considered as a single area.
[0085] If the sum is greater than the preset load power, the difference between the sum and the preset load power is calculated, and each target area is filtered based on the difference, with the filtered target areas forming a single region. Specifically, filtering the target areas based on the difference can be done by combining the difference with the regional power consumption of each target area.
[0086] For example, Region 4 is adjacent to Regions 5 and 6 and can be considered as a single target area. However, the power consumption of Region 4 is 18A (or 39600W), Region 5 is 13A (or 2860W), and Region 6 is 10A (or 2200W). The sum of these three region power consumptions is 41A (or 9020W), which is greater than the preset load power of 24A (or 5280W). The difference is 17A. Based on this difference and the utilization rate of the cable, it is more appropriate to separate Region 4. Therefore, the selected target areas are Regions 5 and 6, which are considered as a single area. Of course, if after separating Region 4, the difference between the sum of Regions 5 and 6 and the preset load power is large, other regions can be combined with Regions 5 and 6 as target areas for this area, and the sum can be calculated again to divide the area.
[0087] It should be noted that if the electricity consumption of region 4 is relatively large, and it is not appropriate to divide it into a separate area with other regions, region 4 can also be a separate area.
[0088] In step S500, each area is connected to the power distribution equipment through a set of power transmission trunk lines so as to supply power to the power consumption units in the area through the power transmission trunk lines.
[0089] The main power transmission line is a power transmission wire. If the main power transmission line connects only one target area, the power consumption of that area must be less than or equal to the wire diameter load current limit of the main power transmission line. If the main power transmission line connects several target areas simultaneously, the total power consumption of the subordinate target areas must be less than or equal to the wire diameter load current limit of the main power transmission line. The selection of the main power transmission line needs to be based on the preset load power setting. For example, when the preset load power is set to 30A (or 6600W) or 36A (or 7920W), considering the load-bearing capacity of the power transmission line, the main power transmission line should be a power transmission wire with a cross-sectional area of 6 square millimeters. When the preset load power is set to 20A (or 4400W) or 24A (or 5280W), the cross-sectional area of the main power transmission line must be at least 4 square millimeters. For economic reasons, a power transmission wire with a cross-sectional area of 4 square millimeters is selected in this case.
[0090] In this implementation, based on the fact that the power consumption of a given area is less than or equal to the preset load power, the entire indoor area is divided into one or more separate areas. Each of these separate areas is then assigned to and connected to a set of main lines, forming a "root system expansion" structure where a distribution box sends out one set of main lines connecting to a single subordinate area, or multiple sets of main lines connecting to multiple subordinate separate areas. This simplifies the wiring structure of the electrical wiring system. (Refer to...) Figure 1For a three-room layout, only three main circuits (group A, group B, and group C) need to be branched off from the distribution box. By dividing the area into zones and supplying power to each zone separately via the main power transmission line, the wiring structure of the circuit system is simplified, greatly saving materials and labor time, while also facilitating the inspection and repair of line faults.
[0091] Furthermore, refer to Figure 1 Each target area corresponding to each zone is equipped with a circuit breaker 10. The step of connecting each zone to the power distribution equipment through a set of power transmission trunk lines to supply power to the power consumption units within the zone through the power transmission trunk lines includes:
[0092] Step a: Connect the incoming end of the power transmission trunk line to the power distribution equipment, and connect the outgoing end of the power transmission trunk line to the incoming end of each circuit breaker 10 respectively;
[0093] Step b: Connect the outgoing terminals of each circuit breaker 10 to all electrical units in the corresponding area;
[0094] The circuit breaker 10 is used to output power supply current when the connected electrical unit is working normally; when the connected electrical unit experiences overload, short circuit, or leakage, it stops outputting power supply current. In other words, the circuit breaker 10 is a circuit breaker with short-circuit protection, leakage protection, and overload protection functions. The power consumption of the target area is less than or equal to the rated power consumption of the circuit breaker 10. The main power transmission line transmits power through the incoming terminal of the circuit breaker 10. Each main power transmission line is responsible for transmitting the total power supply to all target areas under a single district. The main power transmission line does not directly connect to each electrical unit within the target area, but rather connects to the incoming terminal of the circuit breaker 10 in each target area. After the current is circulated by the circuit breaker 10, it is then connected to each electrical unit within the corresponding area through the outgoing terminal of the circuit breaker, forming a vertical structure of circuit breaker, main power transmission line, and electrical units within the corresponding area.
[0095] After the main power transmission line circuit is connected to circuit breaker 10, when a short circuit, leakage current, or overload fault occurs in any of the power consumption units connected to the outgoing terminals of circuit breaker 10, circuit breaker 10 will stop supplying current to the connected power consumption units, ensuring that the target area enters a state of power outage protection. However, if no short circuit, leakage current, or overload fault occurs in other target areas under the same main power transmission line, the circuit breaker in the fault-free target area will operate normally, and the power consumption units connected to its outgoing terminals will consume power normally. This is because the circuit breakers installed in each target area are only responsible for the power consumption management of the power consumption units connected to their outgoing terminals and will not affect the circuit flow on the main power transmission line connected to the incoming terminals. In other words, if the main power transmission line connects several subordinate target areas, and a short circuit, leakage current, or overload fault occurs in one of the areas, the circuit breaker installed in that faulty area will perform a separate disconnection protection, while the circuit breakers in other fault-free areas under the same main power transmission line will continue to supply power normally. Based on this, this solution can make each target area where a circuit breaker 10 is installed an independent area, enabling independent management of electricity consumption and circuit faults in each independent area.
[0096] Furthermore, when the number of target areas corresponding to the area is greater than 1, the step of connecting the outgoing end of the power transmission trunk line to the incoming end of each circuit breaker 10 includes:
[0097] Step c: Sort the connection order of each circuit breaker 10 according to the distance between the target area corresponding to each circuit breaker 10 and the power distribution equipment.
[0098] Step d: Connect the outgoing end of the main power transmission line to the incoming end of the circuit breaker with the first connection order;
[0099] Step e: Connect the incoming terminals of the remaining circuit breakers to the incoming terminals of the previous circuit breaker in the order described above.
[0100] When a group of zones corresponds to only one target area, simply connect the incoming line of the circuit breaker 10 for that target area to the distribution box via the main power transmission line. When a group of zones corresponds to more than one target area (i.e., two or more target areas), preferably, connect to the distribution box's incoming line according to the principle of proximity. That is, take the target area closest to the distribution box as the first connection sequence, connect its incoming line to the distribution box via the main power transmission line, and then connect a main power transmission line in parallel from the incoming line of the circuit breaker 10 to the incoming line of the next circuit breaker 10, and so on. (Refer to...) Figure 1For example, the distance between area 5 and the distribution box is closer than that between area 6. Therefore, the connection sequence of circuit breaker 10 in area 5 is the first level, and that in area 6 is the second level. The wiring method of the main power transmission line is as follows: after the main power transmission line is connected to the incoming terminal of circuit breaker 10 installed in area 5, a set of main power transmission lines is connected in parallel from the incoming terminal of circuit breaker 10 to the incoming terminal of circuit breaker 10 installed in area 6, and so on.
[0101] It should also be noted that when connecting the incoming terminals of the remaining circuit breakers 10 to the incoming terminals of the previous circuit breaker 10 in the order described above, the main power transmission line may not be used, as long as the carrying capacity of the power transmission line can meet the regional power consumption of the area corresponding to the lower-level circuit breaker 10.
[0102] In this embodiment, when a group of power transmission trunk lines has two or more target areas, the incoming terminals of the circuit breakers 10 in each target area can be connected separately. This can save on wiring materials, reduce construction costs, and make the line structure clear and simple.
[0103] Furthermore, each area is equipped with a corresponding circuit breaker, and the step of connecting each area to the distribution box via a set of main power transmission lines to supply power to the power-consuming units within the area via the main power transmission lines includes:
[0104] Step f: Connect the incoming terminals of the circuit breakers corresponding to each area to the distribution box through a set of power transmission trunk lines, and connect the outgoing terminals of the circuit breakers corresponding to each area to all the power-consuming units in the area.
[0105] In this embodiment, each area is equipped with a circuit breaker, which manages all electrical units within the area. When a short circuit, leakage, or overload fault occurs in any of the electrical units connected to the outgoing terminals, the circuit breaker will stop supplying current to all electrical units in that area, ensuring that that area enters a power outage protection state, while other areas continue to operate independently. Based on this, the independent operation of each area can be achieved in this solution.
[0106] It should be noted that, in actual wiring, depending on the specific circumstances, a circuit breaker can be installed in a single area or in a single target area within the area, allowing for flexible configuration.
[0107] Furthermore, the circuit breaker is used to output power supply current when the connected power unit is working normally; and to stop outputting power supply current when the connected power unit experiences overload, short circuit or leakage.
[0108] In this embodiment, the overload is a mild overload, which refers to an overload in the circuit that does not reach the standard that would trigger the tripping protection of a normal circuit breaker. Prolonged mild overload can lead to a gradual accumulation of temperature rise, eventually resulting in a fire. By selecting a circuit breaker with triple protection functions (overload, short circuit, or leakage current), the circuit can be fully protected against all faults, truly enabling independent operation of each target area. If the selected circuit breaker does not protect against leakage current, the distribution box will trip when a leakage occurs in the power unit, making it impossible to truly achieve independent operation of each target area. Similarly, the lack of overload protection will inevitably pose a significant safety hazard.
[0109] Of course, circuit breakers can also have over-temperature and over-current protection functions to provide more comprehensive protection for circuit safety. They can also have alarm functions, which will sound an alarm when a circuit fault occurs to remind users to discover the fault in time and troubleshoot potential safety hazards.
[0110] Furthermore, the circuit breaker is also used to stop outputting power supply current when it detects that the current fluctuation exceeds a preset fluctuation range.
[0111] In this embodiment, the circuit breaker can detect faults bidirectionally. When the peak value of the current waveform at the circuit breaker's output terminal exceeds a preset fluctuation range, it indicates that a sudden load short circuit or other similar situation may occur in the circuit. At this time, the circuit breaker stops supplying power to all connected electrical units, promptly predicting and protecting against potential faults, thus further ensuring electrical safety. The preset fluctuation range can be a specific parameter of the circuit breaker and can be selected according to the actual situation of the electrical units; it is not limited here.
[0112] Furthermore, the preset load power includes a first current or a first power, wherein the first current is 24A and the first power is 5280W.
[0113] In this embodiment, the first power is the power corresponding to the electrical load operating at the first current. When the first current is 24A, the first power is 5280W based on the rated voltage of 220V. In actual circuits, there may be situations where the voltage is less than 220V or exceeds 220V, and the load power will fluctuate accordingly. When planning the wiring, the calculation can be combined with the actual power supply situation.
[0114] Furthermore, the cross-sectional area of the main power transmission line is 4 square millimeters.
[0115] In this embodiment, when the preset load capacity is 24A, the main power transmission line between the circuit breaker's output terminal and the distribution box can be a power transmission line with a cross-sectional area of 4 square millimeters. This satisfies the current carrying capacity requirement of the line, ensures circuit safety, and saves on wire costs. It is understood that a power transmission line with a cross-sectional area greater than 4 square millimeters can also be used, but 4 square millimeters is preferred. The selection of the power transmission line connecting the circuit breaker and the power-consuming unit is not limited here.
[0116] Furthermore, the preset load power includes a second current or a second power, wherein the second current is 36A and the second power is 7920W.
[0117] Depending on the actual situation, the area can be divided based on the preset load power as the first current or the first power, or based on the preset load power as the second current or the second power. Alternatively, some areas can be divided based on the preset load power as the first current or the first power, and some areas can be divided based on the preset load power as the second current or the second power.
[0118] Furthermore, the cross-sectional area of the main power transmission line is 6 square millimeters.
[0119] In this embodiment, when the preset load power is 36A, the main power transmission line between the outgoing terminal of the circuit breaker and the distribution box shall be at least a power transmission line with a cross-sectional area of 6 square millimeters to meet the current carrying capacity requirements of the line and ensure circuit safety.
[0120] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.
[0121] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.
[0122] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RXM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of the present invention.
[0123] The above are merely preferred embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural transformations made using the contents of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the scope of patent protection of the present invention.
Claims
1. An indoor electrical wiring system, wherein the indoor space comprises multiple zones, each zone comprising at least one electrical unit, characterized in that, The indoor wiring system includes: power distribution equipment and at least one set of main power transmission lines. Each set of main power transmission lines has an input end and an output end. The input end of each set of main power transmission lines is connected to the output end of the power distribution equipment. The output end of each set of main power transmission lines is used to connect to electrical units in at least one area. The total power consumption of the electrical units connected to the output end of each set of main power transmission lines is less than or equal to a preset load power. The electrical units include lamps, sockets, air conditioners, and / or refrigerators. The indoor wiring system also includes multiple circuit breakers, with one circuit breaker installed in each area. The incoming terminal of the circuit breaker is connected to the output terminal of the main power transmission line corresponding to the area where the circuit breaker is located, and the outgoing terminal of the circuit breaker is connected to the power consumption unit in the area. The circuit breaker has short-circuit protection, leakage protection and overload protection functions. The preset load power is used to divide all areas into different zones. The step of dividing all areas into different zones includes: calculating the regional power consumption of each zone, wherein the regional power consumption is the sum of the total power consumption of the power-consuming units in the zone and the corresponding preset power consumption, and the preset power consumption is a preset percentage of the total power consumption. Determine the positional relationship between each of the regions, and determine the target region that satisfies the preset region construction rules based on the positional relationship; If there are multiple target areas, the sum of the electricity consumption of each target area is calculated; if the sum is less than or equal to the preset load electricity, each target area is treated as a zone, and a circuit breaker is set in each zone. After setting a circuit breaker in a zone, it is supported that no circuit breaker is set in each target area within the zone.
2. The indoor circuit wiring system as described in claim 1, characterized in that, When the number of regions corresponding to the output end of the power transmission trunk line is greater than 1, the incoming end of the circuit breaker corresponding to the region closest to the power distribution equipment is connected to the output end of the power transmission trunk line, and the incoming ends of the remaining circuit breakers are connected to the incoming ends of the previous level circuit breaker in order of the distance between the corresponding region and the power distribution equipment from closest to farthest.
3. The indoor circuit wiring system as described in claim 1, characterized in that, The indoor circuit wiring system also includes at least one circuit breaker, the incoming end of which is connected to the output end of the main power transmission line, and the outgoing end of which is connected to the power consumption unit corresponding to the main power transmission line.
4. The indoor circuit wiring system as described in any one of claims 2 to 3, characterized in that, The circuit breaker is used to output power supply current when the connected power unit is working normally; and to stop outputting power supply current when the connected power unit experiences overload, short circuit or leakage.
5. The indoor circuit wiring system as described in claim 4, characterized in that, The circuit breaker is also used to stop outputting power supply current when it detects that the current fluctuation exceeds a preset fluctuation range.
6. An indoor circuit wiring method, wherein the indoor area comprises multiple zones, each zone comprising at least one electrical unit, characterized in that, The wiring method includes the following steps: Calculate the total power consumption of electrical units in each area, and calculate the regional power consumption of each area based on the total power consumption, wherein the electrical units include lamps, sockets, air conditioners and / or refrigerators; Determine the positional relationship between each of the regions, and determine the target region that satisfies the preset region construction rules based on the positional relationship; If there are multiple target areas, the sum of the regional electricity consumption corresponding to each target area is calculated, wherein the regional electricity consumption is the sum of the total electricity consumption of the electricity-consuming units in the area and the corresponding pre-increased electricity consumption, and the pre-increased electricity consumption is a preset percentage of the total electricity consumption. If the sum is less than or equal to the preset load power, then each target area is considered as a single region. Each area is connected to the power distribution equipment through a set of main power transmission lines, so that the power supply units in the area can be supplied through the main power transmission lines; The indoor circuit wiring system also includes multiple circuit breakers. The incoming terminals of the circuit breakers are connected to the output terminals of the main power transmission line corresponding to the area where the circuit breaker is located, and the outgoing terminals of the circuit breakers are connected to the power consumption units in the area respectively. The circuit breakers have short circuit protection, leakage protection and overload protection functions. If there are multiple target areas, the sum of the electricity consumption of each target area is calculated. If the sum is less than or equal to the preset load electricity, each target area is considered as a zone, and a circuit breaker is set in each zone. After setting a circuit breaker in a zone, it is supported that no circuit breaker is set in each target area within the zone.
7. The indoor circuit wiring method according to claim 6, characterized in that, Each target area corresponding to each zone is equipped with a circuit breaker. The step of connecting each zone to the power distribution equipment through a set of power transmission trunk lines, so as to supply power to the power consumption units within the zone through the power transmission trunk lines, includes: The incoming end of the power transmission trunk line is connected to the power distribution equipment, and the outgoing end of the power transmission trunk line is connected to the incoming end of each circuit breaker. Connect the outgoing terminals of each circuit breaker to all electrical units within the corresponding target area.
8. The indoor circuit wiring method according to claim 7, characterized in that, When the number of target areas corresponding to the area is greater than 1, the step of connecting the outgoing end of the power transmission trunk line to the incoming end of each circuit breaker includes: Based on the distance between the target area corresponding to each circuit breaker and the power distribution equipment, the connection order of each circuit breaker is sorted to obtain the connection sequence. Connect the outgoing end of the main power transmission line to the incoming end of the circuit breaker with the first connection order; Connect the incoming terminals of the remaining circuit breakers to the incoming terminals of the previous circuit breaker in the order described above.
9. The indoor circuit wiring method according to claim 6, characterized in that, Each area is equipped with a corresponding circuit breaker. The step of connecting each area to a distribution box via a set of main power transmission lines to supply power to the electrical units within the area via the main power transmission lines includes: The incoming terminals of the circuit breakers corresponding to each area are connected to the distribution box through a set of power transmission trunk lines, and the outgoing terminals of the circuit breakers corresponding to each area are connected to all the power-consuming units in the area.
Citation Information
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