Low inductance cable and method of manufacturing

Abstract

Disclosed is a cable (100) having low inductance property. The cable (100) includes a first conductor (104), a first insulation layer (102) disposed on and surrounding the first conductor (104), a second conductor (106) disposed on and surrounding the first insulation layer (102), a second insulation layer (108) disposed on and surrounding the second conductor (106), and a metal tape (110) disposed on and surrounding the second insulation layer (108). The cable (100) may further include one or more conductive wires (112) disposed on the metal tape (110) and a sheath (114) disposed on the conductive wires (112). A method (200) of manufacturing the cable (100) is also disclosed, including forming the first conductor (104), disposing the first insulation layer (102), forming the second conductor (106), disposing the second conductor (106), disposing the second insulation layer (108), and disposing the metal tape (110).

Description

[0001] LOW INDUCTANCE CABLE AND METHOD OF MANUFACTURING

[0002] FIELD OF DISCLOSURE

[0003] The present disclosure relates to power cables for electrical systems, and more particularly to a low inductance cable and method of manufacturing.

[0004] BACKGROUND

[0005] Power cables are essential components in electrical systems, providing the means to transmit electrical energy from power sources to various devices and equipment. These cables are used in a wide range of applications, from residential and commercial buildings to industrial facilities and telecommunications infrastructure.

[0006] Conventional power cables typically consist of one or more conductors, insulation layers, and protective sheaths. While these cables are effective for many applications, they can face challenges in systems with rapidly changing power demands, such as those found in modern telecommunications equipment like Remote Radio Heads (RRH). In such systems, the self-inductance of the cable can lead to significant voltage drops, particularly during periods of fast-changing current flow. These voltage drops can be especially problematic when systems are operating on battery backup power, potentially causing system failures due to insufficient voltage.

[0007] Existing solutions to address these issues often involve using cables with larger cross-sectional areas to reduce resistance and voltage drop. However, this approach results in heavier, bulkier cables that are more difficult to install and manage, especially in space-constrained environments. Additionally, the increased material usage leads to higher costs for both the cables themselves and their installation.

[0008] Therefore, there exists a need for a technical solution that solves the aforementioned problems of conventional cables.

[0009] SUMMARY This summary is provided to introduce a selection of concepts in a simplified form that are further described below in the detailed description. This summary is not intended to identify key features or essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter. In an aspect of the present disclosure, a cable having low inductance property is disclosed. The cable includes a first conductor. A first insulation layer is disposed on the first conductor. The first insulation layer surrounds the first conductor. A second conductor is disposed on the first insulation layer. The second conductor surrounds the first insulation layer. A second insulation layer is disposed on the second conductor. The second insulation layer surrounds the second conductor. A metal tape is disposed on the second insulation layer. The metal tape surrounds the second insulation layer. In some aspects of the present disclosure, the first conductor includes a plurality of conductive strands. An outer circumferential surface of each of the plurality of conductive strands is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0010] In some aspects of the present disclosure, the second conductor includes a plurality of conductive strands. An outer circumferential surface of each of the plurality of conductive strands is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0011] In some aspects of the present disclosure, the cable further includes one or more conductive wires disposed on the metal tape. The one or more conductive wires are configured to carry excess electrical charge built on the metal tape to ground.

[0012] In some aspects of the present disclosure, the cable further includes a sheath disposed on the one or more conductive wires.

[0013] In some aspects of the present disclosure, the first insulation layer, the second insulation layer, and the sheath are made up of a flame retardant and low smoke (FRLS) compound. In an aspect of the present disclosure, a method of manufacturing a cable having low inductance property is disclosed. The method includes forming a first conductor. A first insulation layer is disposed on the first conductor. The first insulation layer surrounds the first conductor. A second conductor is formed. The second conductor is disposed on the first insulation layer. The second conductor surrounds the first insulation layer. A second insulation layer is disposed on the second conductor. The second insulation layer surrounds the second conductor. A metal tape is disposed on the second insulation layer. The metal tape surrounds the second insulation layer.

[0014] In some aspects of the present disclosure, the method further includes disposing one or more conductive wires on the metal tape. The one or more conductive wires are configured to carry excess electrical charge built on the metal tape to ground.

[0015] In some aspects of the present disclosure, the method further includes disposing a sheath on the one or more conductive wires.

[0016] In some aspects of the present disclosure, the first conductor includes a plurality of conductive strands. An outer circumferential surface of each of the plurality of conductive strands is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0017] In some aspects of the present disclosure, the second conductor includes a plurality of conductive strands. An outer circumferential surface of each of the plurality of conductive strands is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0018] In some aspects of the present disclosure, the first insulation layer, the second insulation layer, and the sheath are made up of a flame retardant and low smoke (FRLS) compound.

[0019] The foregoing general description of the illustrative aspects and the following detailed description thereof are merely exemplary aspects of the teachings of this disclosure and are not restrictive. BRIEF DESCRIPTION OF FIGURES

[0020] The following detailed description of the preferred aspects of the present disclosure will be better understood when read in conjunction with the appended drawings. The present disclosure is illustrated by way of example, and not limited by the accompanying figures, in which like references indicate similar elements.

[0021] FIG. 1 illustrates a cross-sectional view of a cable having low inductance property, according to aspects of the present disclosure; and

[0022] FIG. 2 illustrates a flowchart for a method of manufacturing a low inductance cable, according to aspects of the present disclosure.

[0023] DETAILED DESCRIPTION

[0024] The detailed description of the appended drawings is intended as a description of the currently preferred aspects of the present disclosure, and is not intended to represent the only form in which the present disclosure may be practiced. It is to be understood that the same or equivalent functions may be accomplished by different aspects that are intended to be encompassed within the spirit and scope of the present disclosure. FIG. 1 illustrates a cross-sectional view of a cable 100 having low inductance property. The cable 100 comprises multiple concentric layers arranged around a central axis. The cable 100 includes a first conductor 104 at its core, a first insulation layer 102, a second conductor 106, and a second insulation layer 108.

[0025] The first conductor 104 includes a plurality of conductive strands such that the plurality of conductive strands includes first through nth conductive strands 104a-104n. In some aspects of the present disclosure, diameter of each conductive strand of the first through nth conductive strands 104a-104n is less than or equal to 0.81 mm diameter. Aspects of the present disclosure are intended to include or otherwise may cover the first through nth conductive strands 104a-104n having any other dimension, without deviating from the scope of the present disclosure. Further, the first through nth conductive strands 104a-104n of the first conductor 104 are arranged in a manner such that an outer circumferential surface of each of the plurality of conductive strands 104a-104n may be in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0026] Surrounding the first conductor 104 is the first insulation layer 102. The first insulation layer 102 may be disposed on and surrounding the first conductor 104 in a cylindrical configuration. In some aspects of the present disclosure, the first insulation layer 102 may be made up of a flame retardant and low smoke (FRLS) compound. The FRLS compound may provide crucial safety features for the cable. The FRLS compound may be designed to resist ignition and limit the spread of fire in case of exposure to heat or flame. Additionally, the FRLS may produce minimal smoke when subjected to high temperatures, reducing the risk of smoke inhalation and improving visibility during emergency situations. The use of FRLS materials is particularly important in applications where fire safety is a concern, such as in buildings, public transportation systems, or industrial facilities. The FRLS properties of the insulation layer contribute to the overall safety profile of the cable, making the cable suitable for use in environments with stringent fire safety regulations. Furthermore, the low smoke characteristic of the compound helps minimize damage to sensitive equipment and reduces the potential for corrosive byproducts that can be generated during combustion of standard insulation materials.

[0027] The second conductor 106 may be disposed on and surrounding the first insulation layer 102. The second conductor 106 may include a plurality of conductive strands such that the plurality of conductive strands includes first through nth conductive strands 106a-106n. In some aspects of the present disclosure, diameter of each conductive strand of the first through nth conductive strands 106a-106n is less than or equal to 0.61 mm diameter. Aspects of the present disclosure are intended to include or otherwise may cover the first through nth conductive strands 106a-106n having any other dimension, without deviating from the scope of the present disclosure. Further, the first through nth conductive strands 106a-106n of the second conductor 106 are arranged in a manner such that an outer circumferential surface of each of the plurality of conductive strands 106a-106n may be in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

[0028] A second insulation layer 108 may be disposed on and surrounding the second conductor 106. The second insulation layer 108 may be made up of a flame retardant and low smoke (FRLS) compound. The second insulation layer 108 may serve as an additional protective barrier for the cable, enhancing its overall durability and safety features. By using a flame retardant and low smoke (FRLS) compound, the second insulation layer 108 significantly contributes to the cable's fire safety properties. The FRLS compound is designed to resist ignition and slow down the spread of flames in case of a fire, reducing the risk of fire propagation along the cable. Additionally, the low smoke characteristic of the compound minimizes the production of dense, opaque smoke during combustion, which can be crucial in maintaining visibility and reducing inhalation risks during emergency situations. This feature is particularly important in enclosed spaces or areas where rapid evacuation may be necessary. The use of FRLS materials in the second insulation layer aligns with stringent safety standards often required in various industries, including telecommunications, industrial facilities, and public infrastructure projects. Furthermore, the second insulation layer may also provide additional electrical insulation, further reducing the risk of short circuits or electrical failures. The thickness and composition of this layer are carefully engineered to balance the cable's overall flexibility with its protective properties, ensuring optimal performance across a wide range of applications and environmental conditions.

[0029] In some aspects of the present disclosure, the cable 100 may further include a metal tape 110 disposed on and surrounding the second insulation layer 108. The metal tape 110 may provide electromagnetic shielding for the cable 100. In some aspects of the present disclosure, the cable 100 may further include one or more conductive wires 112 that are disposed on the metal tape 110. The conductive wires may further include first through nth conductive wire 112a-l 12n. In some aspects of the present disclosure, the one or more conductive wires 112 may be configured to carry excess electrical charge built on the metal tape 110 to ground. In other words, the one or more conductive wires 112 may be configured to provide a path for excess electrical charge to be safely discharged. The feature may be particularly important in applications where electromagnetic interference (EMI) or electrostatic discharge (ESD) could potentially affect the cable's performance or pose safety risks. By connecting the metal tape 110 to ground through the one or more conductive wires 112, any accumulated charge on the metal tape is efficiently dissipated, preventing potential voltage buildup that could lead to signal distortion or equipment damage. The feature may enhances the cable's overall electromagnetic compatibility (EMC) and contributes to its reliability in various operating environments. The configuration of the one or more conductive wires 112 may vary depending on the specific application requirements, potentially including different wire gauges or materials to optimize the grounding performance while maintaining the cable's flexibility and overall dimensions.

[0030] In some aspects of the present disclosure, the cable 100 may further include a sheath 114 that may be disposed on the one or more conductive wires 112, encompassing all the interior components and providing protection and insulation for the entire cable assembly. In some aspects of the present disclosure, the sheath 114 may be made up of a flame retardant and low smoke (FRLS) compound.

[0031] Examples of the first conductor 104 and the second conductor 106 may include, but are not limited to, copper, aluminum, silver-plated copper, or any other conductive material. Aspects of the present disclosure are intended to include and / or otherwise cover any type of conductive material for the first conductor 104 and the second conductor 106, without deviating from the scope of the present disclosure. Examples of the first insulation layer 102, the second insulation layer 108, and the sheath 114 may include, but are not limited to, FRLS polyvinyl chloride (PVC), polyethylene (PE), cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), or any other suitable insulating material. Aspects of the present disclosure are intended to include and / or otherwise cover any type of insulating material for the first insulation layer 102, the second insulation layer 108, and the sheath 114, without deviating from the scope of the present disclosure.

[0032] The concentric arrangement of the first conductor 104 and the second conductor 106, separated by the first insulation layer 102, contributes to the low inductance properties of the cable 100. This design allows for mutual cancellation of magnetic fields, resulting in reduced overall inductance.

[0033] In some aspects of the present disclosure, the cable may have a compact design with specific dimensional characteristics. The first conductor 104 and second conductor 106 may each have a cross-sectional area of less than or equal to 10 mm2. Aspects of the present disclosure are intended to include or otherwise may cover the first conductor and second conductor having any other cross-sectional area dimension, without deviating from the scope of the present disclosure. This configuration allows for a reduced overall cable diameter while maintaining performance. The cable may have an overall diameter of less than or equal to 10.5 mm ± 2 mm, providing a slim profile that facilitates installation in space-constrained environments. However, it should be understood that the dimensions provided herein are exemplary only and not limiting, and various other dimensions may be employed without departing from the scope of the present disclosure.

[0034] The cable may be designed to operate within specific temperature ranges. Under normal operating conditions, the maximum conductor temperature may be 70°C. This temperature limit ensures optimal performance and longevity of the cable. In the event of a short circuit, the maximum conductor temperature at the termination may be 160°C, providing a safety margin for extreme conditions. However, these temperature specifications are provided as examples only and should not be construed as limitations of the present disclosure. Various other temperature ranges may be employed without departing from the scope of the present disclosure.

[0035] The insulation layers of the cable may be engineered for durability and environmental resistance. The second insulation layer may have ultraviolet (UV) resistant properties, making the cable suitable for outdoor installations or environments with high UV exposure. Both the first insulation layer and the second insulation layer may be made of an extruded flame retardant, low smoke (FRLS) polyvinyl chloride (PVC) compound. This material choice enhances the cable's safety profile in fire-risk scenarios.

[0036] The thickness of the insulation layers may be optimized for performance and overall cable dimensions. The first insulation layer may have a thickness of less than or equal to 1.0 mm, while the second insulation layer may have a thickness of less than or equal to 1.5 mm. These precise dimensions contribute to the cable's low inductance properties while maintaining adequate insulation. However, it should be understood that the dimensions provided herein are exemplary only and not limiting , and various other dimensions may be employed without departing from the scope of the present disclosure.

[0037] The electrical characteristics of the cable may be tailored for specific applications. The cable may be designed to meet a voltage grade of 1100 V, making it suitable for a wide range of power distribution scenarios. The maximum DC resistance of the first conductor at 20°C may be 1.83 Ohms / km, while the maximum DC resistance of the second conductor at 20°C may be 1.91 Ohms / km. These resistance values ensure efficient power transmission over long distances. However, it should be understood that these electrical characteristics are provided as examples only and not as limitations, and various other electrical specifications may be employed without departing from the scope of the present disclosure. The cable may have an inductance of less than 0.2 pH per meter. This low inductance characteristic may be maintained across various frequencies, including but not limited to, 100 Hz, 1000 Hz, 100 kHz, and 100 MHz, making the cable suitable for applications with rapidly changing power demands.

[0038] In some aspects of the present disclosure, the cable may be available in different sizes to accommodate various power requirements. In addition to the 10 sq mm version, the cable may also be manufactured in 6 sq mm and 4 sq mm versions. These different sizes may allow for flexibility in system design and installation, catering to a wide range of applications while maintaining the low inductance properties.

[0039] For the 6 sq mm version, the first conductor may comprise of less than or equal to 7 wires of less than or equal to 1.04 mm diameter, while the second conductor may comprise of less than or equal to 36 wires of less than or equal to 0.445 mm diameter. The first insulation layer may have a thickness of less than or equal to 0.80 mm, and the second insulation layer may have a thickness of less than or equal to 1.40 mm. The overall diameter of this version may be approximately less than or equal to 8.60 mm ± 2 mm.

[0040] For the 4 sq mm version, the first conductor may comprise of less than or equal to 7 wires of less than or equal to 0.85 mm diameter, while the second conductor may comprise of less than or equal to 40 wires of less than or equal to 0.345 mm diameter. The first insulation layer may have a thickness of less than or equal to 0.80 mm, and the second insulation layer may have a thickness of less than or equal to 1.30 mm. The overall diameter of this version may be approximately less than or equal to 7.60 mm ± 2 mm.

[0041] The maximum DC resistance of the first and second conductors at 20°C may vary depending on the cable size. For the 6 sq mm version, these values may be 3.08 Ohms / km and 3.30 Ohms / km respectively. For the 4 sq mm version, they may be 4.61 Ohms / km and 4.95 Ohms / km respectively. Regardless of the size, all versions of the cable may maintain the same low inductance characteristics, with inductance values equal to or less than 0.2 pH / m across various frequencies, including but not limited to, 100 Hz, 1000 Hz, 100 kHz, and 100 MHz. This consistency across different sizes ensures that the cable's performance benefits can be realized in a variety of applications and power requirements.

[0042] FIG. 2 illustrates a flowchart for a method 200 of manufacturing a cable having low inductance property, according to aspects of the present disclosure.

[0043] The method 200 may include several sequential steps that outline the process of creating the cable. At step 202, the method 200 may include forming a first conductor 104. The first conductor 104 may comprise a plurality of conductive strands. In some aspects of the present disclosure, the first conductor 104 may be formed using copper strands. The formation of the first conductor 104 may establish the core of the cable, which may be configured to carry electrical current.

[0044] At step 204, the method 200 may include disposing a first insulation layer 102 on the first conductor 104 wherein the first insulation layer 102 surrounds the first conductor 104. The first insulation layer 102 may be extruded using a flame retardant, low smoke (FRLS) compound. In some aspects of the present disclosure, disposing the first insulation layer 102 may comprise forming the layer to a thickness of less than or equal to 1.0 mm. The first insulation layer 102 may provide electrical isolation for the first conductor 104.

[0045] At step 206, the method 200 may include forming a second conductor 106. The second conductor 106 may comprise a plurality of conductive strands. In some aspects of the present disclosure, the second conductor 106 may be formed using copper strands. The formation of the second conductor 106 may add another conductive element to the cable structure.

[0046] At step 208, the method 200 may include disposing the second conductor 106 on the first insulation layer 102 wherein the second conductor 106 surrounds the first insulation layer 102. This arrangement may contribute to the low inductance properties of the cable by creating a concentric structure.

[0047] At step 210, the method 200 may include disposing a second insulation layer 108 on the second conductor 106 wherein the second insulation layer 108 surrounds the second conductor 106. The second insulation layer 108 may be extruded using an FRLS compound with ultraviolet (UV) resistant properties. In some aspects of the present disclosure, disposing the second insulation layer 108 may comprise forming the layer to a thickness of less than or equal to 1.5 mm. The second insulation layer 108 may provide additional insulation and protection for the cable.

[0048] At step 212, the method 200 may include disposing a metal tape 110 on the second insulation layer 108 wherein the metal tape 110 surrounds the second insulation layer 108. The metal tape 110 may serve as a shield against electromagnetic interference, further enhancing the cable's performance.

[0049] At step 214, the method 200 may further include disposing one or more conductive wires 112 on the metal tape 110 wherein the one or more conductive wires 112 are configured to carry excess electrical charge built on the metal tape 110 to ground. This step may improve the cable's grounding capabilities and overall safety.

[0050] At step 216, the method 200 may further include disposing a sheath 114 on the one or more conductive wires 112. The sheath 114 may provide the final layer of protection and insulation for the cable assembly.

[0051] The method 200 may result in a manufactured cable with inductance of less than 0.2 pH per meter. This low inductance property may be achieved through the concentric arrangement of the first conductor 104 and the second conductor 106, separated by the first insulation layer 102.

[0052] Examples of the conductive materials used for forming the first conductor 104 and the second conductor 106 may include, but are not limited to, copper, aluminum, silver-plated copper, or any other conductive material. Aspects of the present disclosure are intended to include and / or otherwise cover any type of conductive material for the first conductor 104 and the second conductor 106, without deviating from the scope of the present disclosure.

[0053] Examples of the insulating materials used for the first insulation layer 102 and the second insulation layer 108 may include, but are not limited to, FRLS polyvinyl chloride (PVC), polyethylene (PE), cross-linked polyethylene (XLPE), ethylene propylene rubber (EPR), or any other suitable insulating material. Aspects of the present disclosure are intended to include and / or otherwise cover any type of insulating material for the first insulation layer 102 and the second insulation layer 108, without deviating from the scope of the present disclosure.

[0054] The method 200 may be implemented using various manufacturing techniques. In some aspects of the present disclosure, the method 200 may utilize a continuous extrusion process for forming the insulation layers. The continuous extrusion process may allow for efficient and consistent production of the cable.

[0055] The method 200 may result in a cable suitable for various applications, including but not limited to, telecommunications equipment, industrial facilities, and power distribution systems. The low inductance properties of the manufactured cable may make it particularly suitable for applications with fast-changing power demands or where voltage stability is critical.

[0056] The cable and the method 200 may offer several significant advantages and has potential applications across various industries, particularly in telecommunications equipment and systems with rapidly changing power demands.

[0057] One of the advantages of the cable 100 is the ability of the cable to maintain stable voltage levels in systems with fast-changing current requirements. This characteristic makes the cable particularly beneficial for telecommunications equipment, especially Remote Radio Heads (RRH). In RRH systems, where power consumption may fluctuate rapidly, the low inductance properties of the cable help maintain voltage stability, potentially preventing system failures and improving overall reliability. The cable's design allows for a smaller cross-sectional area compared to standard cables while maintaining equivalent power handling capacity. This reduction in size and weight offers several benefits in practical applications. For example, a 2 core 10 mm2low inductance cable may replace a 2 core 16 / 25 mm2standard cable over a 100-meter distance. The lighter weight and increased flexibility of the cable may result in easier handling during installation, potentially reducing labor time and associated costs. In telecommunications towers or densely populated urban areas where space is at a premium, the compact design of the low inductance cable may provide significant advantages. The cable's smaller size may allow for more efficient use of limited space in cable trays or conduits, potentially increasing the overall capacity of existing infrastructure.

[0058] The cable 100 having the low inductance may also offer benefits in industrial facilities and power distribution systems where voltage stability is critical. In applications such as factory automation or data centers, where equipment may be sensitive to voltage fluctuations, the cable's low inductance properties may help maintain consistent power delivery, potentially improving system reliability and reducing downtime.

[0059] Another advantage of cable 100 is potential of the cable 100 for cost savings. The reduced material usage due to the smaller cross-sectional area may result in lower manufacturing costs. Additionally, the lighter weight of the cable may lead to reduced transportation costs and easier handling during installation, potentially lowering overall project costs.

[0060] In some aspects of the present disclosure, the method 200 may involve manufacturing the cable 100 such that the cable 100 may be available in standard packing lengths of 1000 meters with a ±5% tolerance on non-returnable wooden drums. This standardized packaging may facilitate easier inventory management and transportation logistics for cable installers and distributors.

[0061] Further, the method 200 may include printing the cable 100 with some information to aid in identification and installation. This information may include manufacturer details, number of cores, size, year of manufacturing, and FRLS (Flame Retardant Low Smoke) designation. Additionally, the method 200 may include sequential length marking at every meter of the cable 100, which may assist installers in accurately measuring and cutting the cable during installation, potentially reducing waste and improving efficiency.

[0062] In summary, the low inductance cable offers advantages in terms of electrical performance, size, weight, cost-efficiency, and safety features. These characteristics make it suitable for a wide range of applications, particularly in telecommunications, industrial facilities, and other environments where stable power delivery and space efficiency are crucial. The standardized packaging and informative printing on the cable further enhance its practicality and ease of use in various installation scenarios. Although the preferred aspects have been detailed here, it should be apparent to those skilled in the relevant field that various modifications, additions, and substitutions can be made without departing from the scope of the disclosure. These variations are thus considered to be within the scope of the disclosure as defined in the following claims. Features or functionalities described in certain example aspects may be combined and re-combined in or with other example aspects. Additionally, different aspects and elements of the disclosed example aspects may be similarly combined and recombined. Further, some example aspects, individually or collectively, may form components of a larger system where other processes may take precedence or modify their application. Moreover, certain steps may be required before, after, or concurrently with the example aspects disclosed herein. It should be noted that any and all methods and processes disclosed herein can be performed in whole or in part by one or more entities or actors in any manner.

[0063] The terminology used herein may imply direct or indirect, full or partial, temporary or permanent, action or inaction. For example, when one element is described as being "on," "connected to," or "coupled with" another element, it may be directly on, connected to, or coupled with the other element, with or without intervening elements, including both direct and indirect variants. Conversely, when an element is described as being "directly connected" or "directly coupled" to another element, there are no intervening elements present.

[0064] Although terms like "first," "second," etc., are used to describe various elements, components, regions, layers, and sections, these terms should not necessarily be interpreted as limiting. They are used solely to distinguish one element, component, region, layer, or section from another. For example, a "first" element discussed here could be referred to as a "second" element without departing from the teachings of the present disclosure.

[0065] The terminology used here is intended to describe specific example aspects and should not be considered as limiting the disclosure. The singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "includes," "comprising," and "including," as used herein, indicate the presence of stated features, steps, elements, or components, but do not exclude the presence or addition of other features, steps, elements, or components. As used herein, the term "or" is intended to be inclusive, meaning that "X employs A or B" would be satisfied by X employing A, B, or both A and B. Unless specified otherwise or clearly understood from the context, this inclusive meaning applies to the term "or."

[0066] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the relevant art. Terms should be interpreted consistently with their common usage in the context of the relevant art and should not be construed in an idealized or overly formal sense unless expressly defined here.

[0067] The terms "about" and "substantially," as used herein, refer to a variation of plus or minus 10% from the nominal value. This variation is always included in any given measure. In cases where other disclosures are incorporated by reference and there is a conflict with the present disclosure, the present disclosure takes precedence to the extent of the conflict, or to provide a broader disclosure or definition of terms. If two disclosures conflict, the later-dated disclosure will take precedence.

[0068] The use of examples or exemplary language (such as "for example") is intended to illustrate aspects of the invention and should not be seen as limiting the scope unless otherwise claimed. No language in the specification should be interpreted as implying that any non-claimed element is essential to the practice of the invention.

[0069] While many alterations and modifications of the present invention will likely become apparent to those skilled in the art after reading this description, the specific aspects shown and described by way of illustration are not intended to be limiting in any way. A number of implementations have been described. Nevertheless, it will be understood that various modifications may be made without departing from the scope of the disclosure. Accordingly, other implementations are within the scope of the following claims.

Claims

We Claims:

1. A cable (100) having low inductance property, the cable (100) comprising:a first conductor (104);a first insulation layer (102) disposed on the first conductor (104) wherein the first insulation layer (102) surrounds the first conductor (104);a second conductor (106) disposed on the first insulation layer (102) wherein the second conductor (106) surrounds the first insulation layer (102);a second insulation layer (108) disposed on the second conductor (106) wherein the second insulation layer (108) surrounds the second conductor (106); anda metal tape (110) disposed on the second insulation layer (108) wherein the metal tape (110) surrounds the second insulation layer.

2. The cable (100) as claimed in claim 1, wherein the first conductor (104) comprising a plurality of conductive strands (104a-104n) wherein an outer circumferential surface of each of the plurality of conductive strands (104a-104n) is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

3. The cable (100) as claimed in claim 1, wherein the second conductor (106) comprising a plurality of conductive strands (106a-106n) wherein an outer circumferential surface of each of the plurality of conductive strands (106a-106n) is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

4. The cable (100) as claimed in claim 1, further comprising one or more conductive wires (112) disposed on the metal tape (110) wherein the one or more conductive wires (112) are configured to carry excess electrical charge built on the metal tape (110) to ground.

5. The cable (100) as claimed in claim 4, further comprising a sheath (114) disposed on the one or more conductive wires (112).

6. The cable (100) as claimed in claim 5, wherein the first insulation layer (102), the second insulation layer (108), and the sheath (114) are made up of a flame retardant and low smoke (FRLS) compound.

7. A method (200) of manufacturing a cable (100) having low inductance property, the method comprising:forming a first conductor (104);disposing a first insulation layer (102) on the first conductor (104) wherein the first insulation layer (102) surrounds the first conductor (104);forming a second conductor (106);disposing the second conductor (106) on the first insulation layer (102) wherein the second conductor (106) surrounds the first insulation layer (102);disposing a second insulation layer (108) on the second conductor (106) wherein the second insulation layer (108) surrounds the second conductor (106); anddisposing a metal tape (110) on the second insulation layer (108) wherein the metal tape (110) surrounds the second insulation layer.

8. The method (200) as claimed in claim 7, further comprising:disposing one or more conductive wires (112) on the metal tape (110) wherein the one or more conductive wires (112) are configured to carry excess electrical charge built on the metal tape (110) to ground.

9. The method (200) as claimed in claim 8, further comprising, disposing a sheath (114) on the one or more conductive wires (112).

10. The method (200) as claimed in claim 7, wherein the first conductor (104) comprising a plurality of conductive strands (104a-104n) wherein an outer circumferential surface of each of the plurality of conductive strands (104a-104n) is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

11. The method (200) as claimed in claim 7, wherein the second conductor (106) comprising a plurality of conductive strands (106a-106n) wherein an outer circumferential surface of each of the plurality of conductive strands (106a-106n) is in contact with an outer circumferential surface of each of one or more adjacent conductive strands.

12. The method (200) as claimed in claim 9, wherein the first insulation layer (102), the second insulation layer (108), and the sheath (114) are made up of a flame retardant and low smoke (FRLS) compound.

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