An electrical standardization wiring method

Abstract

This invention discloses a standardized electrical wiring method, comprising the following steps: component preparation and verification, component layout planning and installation, marking the unique codes of component terminals on the schematic diagram, marking cross-device connection terminals on the electrical schematic diagram, compiling a master circuit wiring table, generating equipment-specific wiring tables according to the installed equipment, and completing on-site wiring according to the equipment-specific wiring tables. On-site wiring distinguishes between single-branch connections and node connections, each following corresponding operating procedures. This invention standardizes the entire wiring process, clarifies the standards for each step, effectively avoids wiring faults caused by experience-based operations, shortens the wiring cycle, improves wiring quality and stability, facilitates subsequent fault diagnosis and maintenance, and is widely applicable to wiring operations in various electrical panels, boxes, and cabinets, especially suitable for complex circuit wiring scenarios involving multiple components, multiple nodes, and cross-device connections.

Description

Technical Field

[0001] This invention belongs to the field of electrical assembly technology, specifically relating to a standardized wiring method based on electrical schematic diagrams in electrical engineering, applicable to circuit wiring operations in complete electrical panel, box, and cabinet assembly projects. Background Technology

[0002] In electrical engineering projects involving the assembly of electrical panels, boxes, and cabinets, completing the wiring and assembly of circuits according to the electrical schematic diagram is a core process. The standardization of this process directly affects the operational stability and safety of the electrical equipment. Currently, the industry's wiring practices fall into two categories based on whether a wiring table is provided: First, if the designer of the electrical schematic diagram provides a standardized wiring table, the electrician can directly complete the wiring according to the table. This method offers relatively better efficiency and accuracy. Second, if the designer does not provide a wiring table, the electrician must independently convert the electrical schematic diagram into actual wiring. This is the more common scenario in the industry. In this case, the conventional wiring method is as follows: the electrician first interprets the electrical schematic diagram, clarifies the overall circuit connection logic, and then completes the wiring of the electrical panel, box, and cabinet according to the schematic diagram from left to right and from top to bottom.

[0003] However, the aforementioned experience-based wiring method without a wiring table has significant technical flaws in practical applications. This problem is particularly prominent in circuits with complex series and parallel connections: the connections between components in complex circuits are intricate and numerous, and multiple wiring breaks are easily formed during the wiring process. Even experienced electricians with many years of practical experience are prone to wiring errors such as incorrect or missing connections. At the same time, this wiring method is highly dependent on the electrician's professional skills. The proficiency in wiring relies entirely on the electrician's repeated practice and long-term work experience, which not only raises the entry threshold for electricians but also makes it difficult to standardize wiring operations, resulting in a lack of stable guarantees for overall wiring efficiency and quality. Summary of the Invention

[0004] This invention addresses the problems existing in the prior art by providing a standardized wiring method for electrical engineering based on electrical schematic diagrams. This method enables rapid and accurate conversion from electrical schematic diagrams to wiring tables, and, combined with the node wiring method, completes the actual wiring operations, forming a complete standardized wiring process from drawing conversion to on-site operation.

[0005] The technical solution of the present invention: A standardized electrical wiring method includes the following steps: Step 1, Component preparation and verification: Prepare the required electrical components according to the electrical schematic diagram, and verify the model, specifications, appearance and performance of each component to ensure that they are completely consistent with the requirements of the electrical schematic diagram and component list. Step 2, Component layout planning and installation: After planning the component layout, classify and install the components on the corresponding mounting plates. If the components belong to two or more independent electrical panels, boxes, or cabinets, then install them on their respective mounting plates. Step 3: Label the unique codes of the terminal blocks of the components on the electrical schematic diagram: Label each terminal block of the components on the electrical schematic diagram one by one, and check the labels against the actual components after labeling to ensure that they are correct; Step 4: Labeling cross-device connection terminals on the electrical schematic: Label the cross-device connection terminals on the electrical schematic according to the actual installation location of the components; if all components are integrated in the same electrical panel, box, or cabinet, this step can be skipped. Step 5: Compile a circuit wiring master table: Based solely on the unique codes of the component terminals and the cross-device connection terminal codes marked on the electrical schematic diagram, list a wiring master table covering all connections in the circuit. Step 6: Generate dedicated wiring tables for each device based on the installed equipment: If the components are distributed in two or more independent electrical panels, boxes, or cabinets, break down the master wiring table from Step 5 into dedicated wiring tables for each device based on the actual installation location of the components; if all components are installed in the same electrical panel, box, or cabinet, this step can be skipped. Step 7: Complete the field wiring according to the equipment's dedicated wiring table: According to the dedicated wiring table for each piece of equipment, distinguish between single branch connections and node connections, and complete the field wiring in sequence according to the corresponding operation methods.

[0006] Furthermore, in step four, the labeling rules for the cross-device connection terminals are as follows: (1) Single branch connection across equipment: When there is only one connection branch between two electrical panels, boxes, or cabinets, only one connection terminal is marked on the branch; (2) Common node cross-equipment connection: A common connection node formed by the intersection of two or more branches. If the terminals connected to the node belong to different electrical panels, boxes, or cabinets, then only one connection terminal shall be marked. Repeated marking is strictly prohibited.

[0007] Furthermore, in step five, the three connection relationships are generated in the following ways: (1) Single branch connection relationship: A single branch with no other nodes or branch lines between the two terminals is directly generated according to "starting terminal code → ending terminal code"; (2) Connection relationship of internal nodes of a single device: For internal nodes of a single device without labeled connection terminals, connect all the terminals connected to the node in sequence from near to far to generate the corresponding connection relationship; (3) Cross-device node connection relationship: For cross-device nodes marked with connection terminals, first complete the connection relationship of all terminals inside each electrical panel, box, and cabinet, and then generate the cross-device connection relationship between different panels, boxes, and cabinets.

[0008] Furthermore, in step six, the principle for splitting the dedicated wiring table for the device is as follows: it is divided according to the actual installation location of the components, retaining only the connection relationships within the same panel, box, or cabinet, as well as the cross-device connection relationships between this device and external connection terminals, and eliminating irrelevant information from other devices; after the splitting is completed, it is checked one by one against the original wiring master table to ensure that all connection relationships are complete, without omissions, mismatches, or duplications.

[0009] Furthermore, in step seven, the operation method for connecting a single branch is as follows: accurately locate the starting and ending terminals on the equipment, mark the wire numbers, and then perform the wiring. The wire numbers correspond one-to-one with the starting and ending codes in the wiring table.

[0010] Furthermore, in step seven, the method for connecting the nodes is as follows: all associated wiring of the node is completed in one go, and interruption during the wiring process is strictly prohibited to avoid omissions or incorrect connections.

[0011] Once you have mastered the above methods, you will no longer need to write out the wiring diagrams listed in steps five and six. Instead, you can generate the connections directly in your mind and complete the wiring by following the method in step seven.

[0012] Compared with existing general wiring methods, the present invention has the following significant advantages: (1) Low operational threshold and easy to master quickly. This invention breaks the dual dependence of traditional wiring methods on circuit principles and practical experience. Implementers do not need to have an in-depth understanding of complex circuit control principles. They only need to know the names and actual positions of the terminals of each component in the circuit. During the wiring process, they only need to strictly follow the generated standardized wiring table. Ordinary electricians can complete the wiring work independently after a short period of systematic learning and simple practice. In contrast, traditional wiring methods require electricians to first fully understand the electrical schematic diagram and clarify the series and parallel logic of the circuit. Then, they need to rely on their own accumulated work experience to complete the wiring in the order of the schematic diagram from top to bottom and from left to right. Mastering this skill often requires electricians to undergo many years of practical training and experience accumulation. The learning cycle is long and the threshold is high.

[0013] (2) Significantly improves wiring accuracy and eliminates misconnection and omission problems at the source. Traditional wiring methods rely on electricians' independent interpretation of electrical schematic diagrams and operation based on experience. When faced with circuits with complex series and parallel relationships, the complex connection nodes in the circuit require frequent interruptions in the wiring process to sort out the subsequent connection relationships, resulting in many wiring breaks. These breaks are the core cause of misconnection and omission problems. Even experienced electricians with many years of practical experience are prone to wiring errors due to visual oversights during long-term operation and subjective judgment errors in node sorting. For new electricians, the wiring error rate is even higher in complex circuits. Moreover, traditional methods lack standardized node handling specifications and rely entirely on personal experience, resulting in a lack of stable guarantee for wiring accuracy. This invention completely avoids this problem through process design. Based on the electrical schematic diagram, it generates a precise and unambiguous wiring table through standardized labeling and process compilation. This ensures that the start and end connections of each wire have clear and unique guidance, eliminating the need for electricians to manually analyze the circuit logic and allowing them to simply follow the table. Furthermore, it establishes a strict requirement for complete wiring at each circuit node in one go, ensuring all connections are completed simultaneously. This effectively avoids missed or incorrect wiring. Once operators are proficient in using this invention, they can easily achieve 100% wiring accuracy, making the wiring accuracy of complex circuits independent of the electrician's experience and skill, and providing extremely high stability.

[0014] (3) Significantly improves overall wiring efficiency. Although this invention requires the completion of electrical schematic diagram terminal marking and wiring table compilation in the early stage of wiring, resulting in a small amount of preparation time, this time cost is far lower than the efficiency improvement and rework time saved in the subsequent wiring operation. In the actual wiring stage, operators no longer need to analyze the series and parallel logic of the circuit, but only need to focus on the starting and ending terminals of the current wiring, greatly simplifying the operation thinking process and effectively improving the speed of on-site wiring. At the same time, because this invention avoids the problems of incorrect wiring and missing wiring from the root, it completely eliminates a lot of wiring verification and fault rework work in traditional wiring. Combined with the speed advantage of on-site wiring, the overall work efficiency of wiring operation can be improved by more than 30%. Attached Figure Description

[0015] Figure 1 This is a standardized electrical wiring method and procedure.

[0016] Figure 2 This is the electrical schematic diagram for the star-delta starting control of a three-phase asynchronous motor.

[0017] Figure 3 This is a layout diagram of the components for the star-delta starting control circuit of a three-phase asynchronous motor.

[0018] Figure 4 This is an electrical schematic diagram of a star-delta starting control system for a three-phase asynchronous motor with labeled terminals.

[0019] Figure 5 This is an electrical schematic diagram of a star-delta starting control system for a three-phase asynchronous motor, with labeled terminals and connection points.

[0020] In the diagram: ① Single-line cross-device connection; ② Node 1; ③ Node 2; ④ Node 3; ⑤ Node 4; ⑥ Node 5; ⑦ Node 6. Among them, Node 1 and Node 2 are cross-device connections, while Node 3, Node 4, Node 5, and Node 6 are intra-device connections. Detailed Implementation

[0021] This invention uses a star-delta starting control circuit for a three-phase asynchronous motor as a specific implementation example. This circuit is a typical complex series-parallel circuit in electrical wiring operations, characterized by multiple components, multiple nodes, and cross-device (electrical cabinet + button box) connections. It fully demonstrates the practicality and superiority of the wiring method of this invention in complex circuits. This example requires the on-site operation buttons to be connected to the electrical cabinet via terminal blocks. The following details the specific implementation steps of the standardized electrical wiring method of this invention, based on this scenario. Those skilled in the art can adapt the wiring operations of various electrical panels, boxes, and cabinets based on the operational logic of this example.

[0022] Figure 1 As shown, the wiring method for the star-delta starting control circuit of a three-phase asynchronous motor includes the following steps: Step 1, Component Preparation and Verification: Prepare and verify the required electrical components according to the electrical schematic diagram. This example strictly follows the electrical schematic diagram of a three-phase asynchronous motor star-delta starting control (…). Figure 2 In accordance with the design requirements, prepare electrical components of corresponding specifications and models. The specific types, quantities, and codes of the components are shown in Table 1. After the components are prepared, check their models, specifications, appearance, and performance integrity one by one to ensure complete consistency with the requirements of the electrical schematic diagram and component list. This will prevent subsequent wiring faults caused by incompatible components and lay a solid foundation for the wiring work.

[0023] Step Two, Component Layout Planning and Installation: Plan the component layout and categorize and install them on the corresponding mounting plates. If components belong to two or more independent electrical panels, boxes, or cabinets, install them on their respective mounting plates. This example follows the layout principles of proximity wiring, ease of operation, and reduced electromagnetic interference. The 2P circuit breaker QF2, contactors KM, KMY, KM△, thermal relay FR, time relay KT, and terminal block X1 are installed on the electrical cabinet mounting plate. Operating buttons SB0 and SB1 are installed on independent button boxes. The specific component installation layout is as follows: Figure 3 As shown.

[0024] Pre-installation layout planning takes into account both wiring workload and ease of later maintenance. A reasonable layout can effectively shorten the length of wires, reduce wiring bends, and make the panel compact and simple. During installation, ensure that components are securely fastened to guarantee installation stability and prevent loosening during wiring or equipment operation, thus avoiding safety hazards such as poor contact caused by loose components.

[0025] Step 3: Label the electrical schematic diagram with the unique codes for the terminal blocks of each component: Following national and industry standards, label the electrical schematic diagram with the unique codes for the terminal blocks of each component. Electrical component terminal blocks adhere to a universal industry standard and national standard labeling system. Different types of components (power supplies, relays, motors, switches, connectors, etc.) have fixed, agreed-upon codes for their terminal blocks. These codes are usually printed directly near the terminal blocks when the components leave the factory, providing a unified reference standard for schematic diagram labeling and facilitating identification and operation by those skilled in the art.

[0026] In this embodiment, the component terminal codes are uniformly marked according to national standards: for the 2P circuit breaker QF2, the incoming terminal is 1 / 3 and the outgoing terminal is 2 / 4; for contactors KM, KMY, and KM△, the normally closed auxiliary contact is 21 / 22, the normally open auxiliary contact is 13 / 14, and the coil is A1 / A2; for the thermal relay FR, the normally closed contact is 95 / 96; for pushbuttons SB0 and SB1, the normally closed contact is 11 / 12 and the normally open contact is 23 / 24; for the time relay KT, the normally closed contact for delayed opening is 1 / 4, the normally open contact for delayed closing is 6 / 8, and the coil is 2 / 7.

[0027] After labeling all component terminals, double-check the schematic diagram against the actual components to ensure there are no errors or omissions. The completed schematic diagram of the star-delta starting control of the three-phase asynchronous motor is as follows: Figure 4 As shown.

[0028] Step 4: Label cross-device connection terminals on the electrical schematic (skip if there are no cross-device connections): Label the connection terminals on the electrical schematic according to the actual installation location of the components; if all components are integrated in the same electrical panel, box, or cabinet, this step can be skipped. When components belong to two or more independent electrical panels, boxes, or cabinets, the connection terminals are the core identifiers that define the electrical connection relationships between different devices. This can prevent cross-device wiring confusion and redundancy from the source and ensure that cross-device wiring standards are traceable.

[0029] In this case, the control components are installed in both the electrical cabinet and the independent button box, which is a typical cross-device connection scenario. The connection terminals must be labeled according to the following specifications: 1. Single Branch Connection Labeling Rules: When there is only one connection branch between two electrical panels, boxes, or cabinets, only one connection terminal is allowed to be labeled for that branch, ensuring that the connection relationship of a single branch is unique and unambiguous. In this case, circuit breaker QF2 is installed in the electrical cabinet, and pushbutton SB0 is installed in the pushbutton box. Circuit breaker QF2:2 and pushbutton SB0:11 are single-wire connections across panels, boxes, and cabinets. Therefore, connection terminal X1:1 is labeled separately for this branch. Figure 5 The position shown in ①.

[0030] 2. Rules for labeling common nodes across devices: In electrical schematic diagrams, if a common connection node is formed by the intersection of two or more branches, and the terminals connected to the node belong to different electrical panels, boxes, or cabinets, then only one connection terminal should be labeled. Duplicate labeling is strictly prohibited to prevent redundant wiring and wiring confusion between panels and cabinets.

[0031] Example Case 1: The terminals of pushbuttons SB0:12, SB1:23, and contactor KM:13 form a common node. SB0 and SB1 are installed in the pushbutton box, and KM is installed in the electrical cabinet. This is a cross-equipment connection. The connection terminals are marked X1:2 at this node. Figure 5 Position shown in ②.

[0032] Example Case 2: The terminals of pushbutton SB1:24, contactors KM:14, KM:A1, KM△:21, and KMY:21 form a common node. SB1 is installed in the pushbutton box, while KM, KM△, and KMY are installed in the electrical cabinet. This is a cross-equipment connection, and the connection terminal X1:3 is marked on this node. Figure 5 Position ③ is shown in the middle.

[0033] In this embodiment, based on the above specifications, three connection terminals, X1:1, X1:2, and X1:3, are marked at key connection locations across devices. The electrical schematic diagram of the star-delta starting control of the three-phase asynchronous motor after completing the marking of the terminals and connections is shown below. Figure 4 As shown.

[0034] Step 5: Compile the circuit wiring master list: Based solely on the component terminal codes and connection terminal codes marked on the electrical schematic, compile the wiring master list according to specifications, ensuring that all circuit connections are covered without omissions, errors, or ambiguities. The wiring master list is the core basis for subsequent wiring work, and its accuracy directly determines the wiring quality. The specific compilation method is as follows: (1) Generation of single branch connection relationship: For a single branch with no nodes or branches between two terminals, the connection relationship of “starting end → terminal” is generated directly to ensure that the starting end and terminal codes are completely consistent with the schematic diagram.

[0035] Example 1: Figure 5 As shown, there is a single branch between QF2:2 and X1:1, and the connection QF2:2→X1:1 is directly generated; Example Case 2: Figure 5 As shown, there is a single branch between X1:1 and SB0:11, and the connection SB0:11→X1:1 is directly generated; Example Case 3: Figure 5 As shown, there is a single branch between KT:4 and KMY:A1, and the connection KT:4→KMY:A1 is directly generated; Example Case 4: Figure 5 As shown, there is a single branch between QF2:4 and FR:95, and the connection QF2:4→FR:95 is directly generated.

[0036] (2) Generation of connection relationships within a single device: For nodes without connection terminals marked on the electrical schematic, it indicates that the node is only an internal connection node of a single device and there is no need for cross-device connection. At this time, following the principle of "connecting all the terminals connected to the node in sequence", the "starting point → ending point" connection relationship is generated one by one from near to far according to the actual installation position of the components. While achieving the shortest line, it ensures that all terminals of the node are reliably connected, reduces wiring costs and improves connection stability.

[0037] Example 1: Figure 5 As shown in node ④, KM△:22, KT:1, and KT:2 constitute independent nodes inside the electrical cabinet, without connecting terminals; combined with Figure 3 In terms of installation layout, KT:1 and KT:2 are relatively close together. Based on the principle of "from near to far", two sets of connection relationships are generated: KM△:22→KT:1 and KT:1→KT:2.

[0038] Example Case 2: Figure 5 As shown in node ⑤, KMY:22, KT:6, and KM△:13 constitute independent nodes inside the electrical cabinet without connecting terminals; KMY is installed between KM△ and KT, and two sets of connection relationships are generated according to the principle of "from near to far": KM△:13→KMY:22 and KMY:22→KT:6.

[0039] Example Case 3: Figure 5 As shown in node ⑥, KT:8, KM△:14, and KM△:A1 constitute independent nodes inside the electrical cabinet, without connecting terminals. Two sets of connection relationships are generated according to the principle of "from near to far": KT:8→KM△:14 and KM△:14→KM△:A1.

[0040] Example Case 4: Figure 5As shown in node ⑦, KM:A2, KMY:A2, KT:7, KM△:A2, and FR:96 constitute independent nodes inside the electrical cabinet, without connecting terminals. They generate four sets of connection relationships according to the principle of "from near to far": KM:A2→KM△:A2, KM△:A2→KMY:A2, KMY:A2→KT:7, and KT:7→FR:96.

[0041] (3) Generation of cross-device node connection relationship: For nodes marked with connection terminals on the electrical schematic diagram, they are cross-device connection nodes. At this time, according to the connection rules in (2) above, the connection relationship of all terminals inside each electrical panel, box, and cabinet is generated first, and then the cross-device connection relationship between different panels, boxes, and cabinets is generated to ensure that the wiring logic is clear and the hierarchy is distinct, and to avoid confusion between cross-device and internal wiring of the device.

[0042] Example Case 1: As shown in node ② of Figure 5, SB0:12, SB1:23, and KM:13 constitute a cross-device node with connection terminal X1:2; SB0 and SB1 are installed in the button box, and KM is installed in the electrical cabinet. First, generate SB0:12→SB1:23 in the button box, generate KM:13→X1:2 in the electrical cabinet, and finally generate the cross-device connection SB1:23→X1:2.

[0043] Example Case 2: As shown in node ③ of Figure 5, SB1:24, KM:14, KM:A1, KM△:21, and KMY:21 constitute a cross-device node with connection terminal X1:3; SB1 is installed in the button box, and KM, KM△, and KMY are installed in the electrical cabinet. First, generate KM:14→KM:A1, KM:A1→KM△:21, KM△:21→KMY:21, and KMY:21→X1:3 in the electrical cabinet according to the proximity principle, and finally generate the cross-device connection SB1:24→X1:3.

[0044] Following the above method, all wiring relationships in this case were sorted out to ensure coverage of all individual branches and nodes. The final wiring summary table is shown in Table 2.

[0045] Step Six: Generate dedicated wiring tables for each installed device: If components are distributed in two or more independent electrical panels, boxes, or cabinets, the master wiring table from Step Five needs to be split into dedicated wiring tables for each device based on the actual installation location of the components; if all components are installed in the same electrical panel, box, or cabinet, skip this step. The splitting of the master wiring table aims to adapt to the practical needs of on-site device wiring, retaining only connection information relevant to the device, eliminating irrelevant content, reducing interference from electrical diagram reading, improving wiring efficiency and accuracy, and reducing wiring error rates.

[0046] In this example, the components are located in the electrical cabinet and the button box. Therefore, the wiring master table in Table 2 is split into the electrical cabinet wiring table and the button box wiring table. The splitting principle is: according to the actual installation location of the components, only the connection relationship within the same panel, box, or cabinet, as well as the cross-device connection relationship between this equipment and external connection terminals are retained, and other irrelevant information is eliminated to ensure that the dedicated wiring table is highly targeted, concise and easy to understand.

[0047] Example 1: Buttons SB0 and SB1 are installed in a button box. Extract the internal connection between them and the cross-device connection relationship with terminal block X1 to form a button box wiring table (Table 3). Example Case 2: QF2, KM, KMY, KM△, FR, KT and terminal block X1 are installed in the electrical cabinet. Extract the connections between the components in the cabinet and their connection with terminal block X1 to form the electrical cabinet wiring table (Table 4).

[0048] After the wiring tables for each device are disassembled, they are checked one by one against the original master wiring table to ensure that all connections are complete, without omissions, mismatches, or duplications, thus guaranteeing the accuracy of the dedicated wiring tables and providing reliable guidance for on-site wiring.

[0049] Step Seven: Complete the on-site wiring operation according to the equipment-specific wiring table: Following the equipment-specific wiring tables generated in Step Six, complete the on-site wiring operations sequentially according to the electrical wiring operation specifications. During the wiring process, clearly distinguish between single-branch connections and node connections, and follow the corresponding operation methods for each. On-site wiring is the core practical implementation step of this invention's wiring method. It must be strictly performed item by item according to the specific wiring table, completely eliminating non-standardized operations based on experience or memory, and ensuring wiring quality and standardization. Specific wiring requirements are as follows: (1) Single branch connection wiring: The point-to-point direct wiring method is adopted. The starting and ending terminals of the wiring are accurately located on the equipment. After the wire number is marked, the wiring is carried out. The wire number must correspond one-to-one with the starting and ending codes in the wiring table. The marking is clear and accurate, which provides a convenient basis for the later line fault investigation, repair and maintenance, and reduces the later maintenance cost.

[0050] Example Case: In the electrical cabinet wiring of this embodiment, QF2:2→X1:1 is a single branch connection. After accurately locating the QF2:2 and X1:1 terminals in the electrical cabinet and marking the corresponding wire numbers, the two-point connection is completed directly using a wire.

[0051] (2) Node connection wiring: All associated wiring of the node shall be completed in one go. Interruption during the wiring process is strictly prohibited. This will fundamentally avoid the problems of missing or incorrect wiring, and at the same time effectively improve the efficiency and standardization of on-site wiring, and ensure the reliability of node connection.

[0052] Example Case: In the electrical cabinet wiring of this embodiment, for Figure 5 The connection relationship of node 3 requires the completion of wiring operations at four locations in one go: KM:14→KM:A1, KM:A1→KM△:21, KM△:21→KMY:21, and KMY:21→X1:3.

[0053] Once operators are proficient in the operating logic and specifications of this invention, they no longer need to generate written wiring master sheets and sub-wiring sheets. They can directly form the wire connection relationships in their minds based on the marked electrical schematic diagram and complete the on-site wiring directly according to this method, further improving wiring efficiency and meeting the practical needs of skilled operators.

[0054] Table 1. Components of the Star-Delta Starting Control Circuit for Three-Phase Asynchronous Motors .

[0055] Table 2 Wiring Summary .

[0056] Table 3 Wiring diagram for push button box .

[0057] Table 4 Electrical Cabinet Wiring Table .

Claims

1. A standardized electrical wiring method, characterized in that... Includes the following steps: Step 1, Component preparation and verification: Prepare the required electrical components according to the electrical schematic diagram, and verify the model, specifications, appearance and performance of each component to ensure that they are completely consistent with the requirements of the electrical schematic diagram and component list. Step 2, Component layout planning and installation: After planning the component layout, classify and install the components on the corresponding mounting plates. If the components belong to two or more independent electrical panels, boxes, or cabinets, then install them on their respective mounting plates. Step 3: Label the unique codes of the terminal blocks of the components on the electrical schematic diagram: Label each terminal block of the components on the electrical schematic diagram one by one, and check the labels against the actual components after labeling to ensure that they are correct; Step 4: Labeling cross-device connection terminals on the electrical schematic: Label the cross-device connection terminals on the electrical schematic according to the actual installation location of the components; if all components are integrated in the same electrical panel, box, or cabinet, this step can be skipped. Step 5: Compile a circuit wiring master table: Based solely on the unique codes of the component terminals and the cross-device connection terminal codes marked on the electrical schematic diagram, list a wiring master table covering all connections in the circuit. Step 6: Generate dedicated wiring tables for each device based on the installed equipment: If the components are distributed in two or more independent electrical panels, boxes, or cabinets, break down the master wiring table from Step 5 into dedicated wiring tables for each device based on the actual installation location of the components; if all components are installed in the same electrical panel, box, or cabinet, this step can be skipped. Step 7: Complete the field wiring according to the equipment's dedicated wiring table: According to the dedicated wiring table for each piece of equipment, distinguish between single branch connections and node connections, and complete the field wiring in sequence according to the corresponding operation methods.

2. The electrical standardization wiring method according to claim 1, characterized in that: In step four, the labeling rules for the cross-device connection terminals are as follows: (1) Single branch connection across equipment: When there is only one connection branch between two electrical panels, boxes, or cabinets, only one connection terminal is marked on the branch; (2) Common node cross-equipment connection: A common connection node formed by the intersection of two or more branches. If the terminals connected to the node belong to different electrical panels, boxes, or cabinets, then only one connection terminal shall be marked. Repeated marking is strictly prohibited.

3. The electrical standardization wiring method according to claim 1, characterized in that: The three methods for generating connection relationships in step five are as follows: (1) Single branch connection relationship: A single branch with no other nodes or branch lines between the two terminals is directly generated according to "starting terminal code → ending terminal code"; (2) Connection relationship of internal nodes of a single device: For internal nodes of a single device without labeled connection terminals, connect all the terminals connected to the node in sequence from near to far to generate the corresponding connection relationship; (3) Cross-device node connection relationship: For cross-device nodes marked with connection terminals, first complete the connection relationship of all terminals inside each electrical panel, box, and cabinet, and then generate the cross-device connection relationship between different panels, boxes, and cabinets.

4. The electrical standardization wiring method according to claim 1, characterized in that: In step six, the principle for splitting the dedicated wiring table is as follows: it is divided according to the actual installation location of the components, retaining only the connection relationship within the same panel, box, or cabinet, as well as the cross-device connection relationship between this device and external connection terminals, and eliminating other irrelevant information. After the disassembly is completed, check each connection against the original wiring master sheet to ensure that there are no omissions, mismatches, or duplications in the connections.

5. The electrical standardization wiring method according to claim 1, characterized in that: In step seven, the operation method for connecting a single branch is as follows: accurately locate the starting and ending terminals on the equipment, mark the wire numbers, and then connect the wires. The wire numbers correspond one-to-one with the starting and ending codes in the wiring table.

6. The electrical standardization wiring method according to claim 1, characterized in that: In step seven, the node connection operation method is as follows: all associated wiring of the node is completed at one time, and interruption during the wiring process is strictly prohibited to avoid omissions or incorrect connections.

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