what is the kinds of conductor of electrical wire and cable
2022-01-14
Type of cable conductor:
According to iec60228 (GB / t3956 adopted equally), cable conductors are divided into four types:
Class 1, class 2, class 5 and class 6. Class 1 represents solid conductor, class 2 represents stranded conductor, class 5 and class 6 represent stranded conductor. The larger the number, the softer the type of conductor
1. A kind of conductor is solid conductor, that is, the conductor is composed of a wire, with circular line and fan-shaped line. For the circular conductor core of large section, in order to reduce the skin effect, it is sometimes divided into four sections and five sections, and the core of the dividing line is mostly composed of fan-shaped lines.
2, the second conductor for press stranded conductor, cross section has a rounded, fan-shaped, tile shape, such as the pressure coefficient (or filling coefficient) can be more than 0.9, the cross section of gap is less than 10%, stranding wire core after compression, improves the conductor structure stability, narrow the conductor diameter, can reduce the insulation and sheath material, thus reduce cable weight and production cost, At the same time, it is conducive to realize the vertical resistance of the conductor to water, which is the embodiment of the production capacity of the factory. It is the most used cable conductor, but it is not a technical indicator to measure the cable quality.
Class 3 and 5 conductors are general soft conductors, that is, used as the conductor of general moving cable.
Class 4 and 6 conductors are special soft conductors, used for special mobile cable, such as welding machine tap line.
Among them, type 5 conductor and type 6 conductor are divided into tinned copper conductor and non-tinned copper conductor.
The most common conductor material is copper. We all know that copper has bare copper (called brass, red copper), tin copper, silver copper wire, etc., these categories are still copper in nature, but coated with other substances. Appear on market now copper encloses aluminum, copper encloses just do conductor.
Class 3 and 5 conductors are general soft conductors, that is, used as the conductor of general moving cable.
Class 4 and 6 conductors are special soft conductors, used for special mobile cable, such as welding machine tap line.
Among them, type 5 conductor and type 6 conductor are divided into tinned copper conductor and non-tinned copper conductor.
The most common conductor material is copper. We all know that copper has bare copper (called brass, red copper), tin copper, silver copper wire, etc., these categories are still copper in nature, but coated with other substances. Appear on market now copper encloses aluminum, copper encloses just do conductor.
If the electrical performance requirements are high nature is the best copper. Environmental protection of conductors is mainly required to contain no heavy metals (RoHS). Material including insulation material, conductor material, shielding material. Insulation such as polyvinyl chloride (PVC), irradiated crosslinked polyvinyl chloride (XL-PVC), irradiated crosslinked polyethylene (XL-PE), low smoke Halogen free (Halogen-free), silicone rubber, teflon Telflon and so on. The environmental protection of insulating materials is mainly the European Union's RoHS environmental protection directive and the European Union's environmental protection regulations on children's toys, which do not contain 6P(non-6P), that is, phthalates. And now the most environmentally friendly is low smoke halogen-free, no halogen elements at all. Technical specifications:
1. Cable toxicity index ≤3.
Rated voltage: 450/750V and below.
3. The cable smoke density conforms to GB/T 17651-1998(equivalent to IEC1043) standard requirements, transmittance ≥60%.
4. The cable halogen acid content test conforms to GB/T 17650-1998(equivalent to IEC 754-2) standard requirements.
1) Conductivity ≤10μs/mm
2) the PH value of 4.3 or higher
5. The flame retardant performance of the cable meets the requirements of GB/T 12666-1990.
6. The maximum permissible long-term operating temperature of the conductor shall not exceed 70 ℃, 90 ℃ and 125℃ respectively.
What about green cables? Environmental cables are free of lead, cadmium, hexavalent chromium, mercury and other heavy metals, and do not contain brominated flame retardants. They have been tested by SGS for environmental performance and are in compliance with the European Union Environmental Directive (RoSH) and higher than its index requirements. No harmful halogen gas, no corrosive gas, less fever when burning, no pollution of soil wire and cable.
According to iec60228 (GB / t3956 adopted equally), cable conductors are divided into four types:
Class 1, class 2, class 5 and class 6. Class 1 represents solid conductor, class 2 represents stranded conductor, class 5 and class 6 represent stranded conductor. The larger the number, the softer the type of conductor
1. A kind of conductor is solid conductor, that is, the conductor is composed of a wire, with circular line and fan-shaped line. For the circular conductor core of large section, in order to reduce the skin effect, it is sometimes divided into four sections and five sections, and the core of the dividing line is mostly composed of fan-shaped lines.
2, the second conductor for press stranded conductor, cross section has a rounded, fan-shaped, tile shape, such as the pressure coefficient (or filling coefficient) can be more than 0.9, the cross section of gap is less than 10%, stranding wire core after compression, improves the conductor structure stability, narrow the conductor diameter, can reduce the insulation and sheath material, thus reduce cable weight and production cost, At the same time, it is conducive to realize the vertical resistance of the conductor to water, which is the embodiment of the production capacity of the factory. It is the most used cable conductor, but it is not a technical indicator to measure the cable quality.
Class 3 and 5 conductors are general soft conductors, that is, used as the conductor of general moving cable.
Class 4 and 6 conductors are special soft conductors, used for special mobile cable, such as welding machine tap line.
Among them, type 5 conductor and type 6 conductor are divided into tinned copper conductor and non-tinned copper conductor.
The most common conductor material is copper. We all know that copper has bare copper (called brass, red copper), tin copper, silver copper wire, etc., these categories are still copper in nature, but coated with other substances. Appear on market now copper encloses aluminum, copper encloses just do conductor.
Class 3 and 5 conductors are general soft conductors, that is, used as the conductor of general moving cable.
Class 4 and 6 conductors are special soft conductors, used for special mobile cable, such as welding machine tap line.
Among them, type 5 conductor and type 6 conductor are divided into tinned copper conductor and non-tinned copper conductor.
The most common conductor material is copper. We all know that copper has bare copper (called brass, red copper), tin copper, silver copper wire, etc., these categories are still copper in nature, but coated with other substances. Appear on market now copper encloses aluminum, copper encloses just do conductor.
If the electrical performance requirements are high nature is the best copper. Environmental protection of conductors is mainly required to contain no heavy metals (RoHS). Material including insulation material, conductor material, shielding material. Insulation such as polyvinyl chloride (PVC), irradiated crosslinked polyvinyl chloride (XL-PVC), irradiated crosslinked polyethylene (XL-PE), low smoke Halogen free (Halogen-free), silicone rubber, teflon Telflon and so on. The environmental protection of insulating materials is mainly the European Union's RoHS environmental protection directive and the European Union's environmental protection regulations on children's toys, which do not contain 6P(non-6P), that is, phthalates. And now the most environmentally friendly is low smoke halogen-free, no halogen elements at all. Technical specifications:
1. Cable toxicity index ≤3.
Rated voltage: 450/750V and below.
3. The cable smoke density conforms to GB/T 17651-1998(equivalent to IEC1043) standard requirements, transmittance ≥60%.
4. The cable halogen acid content test conforms to GB/T 17650-1998(equivalent to IEC 754-2) standard requirements.
1) Conductivity ≤10μs/mm
2) the PH value of 4.3 or higher
5. The flame retardant performance of the cable meets the requirements of GB/T 12666-1990.
6. The maximum permissible long-term operating temperature of the conductor shall not exceed 70 ℃, 90 ℃ and 125℃ respectively.
What about green cables? Environmental cables are free of lead, cadmium, hexavalent chromium, mercury and other heavy metals, and do not contain brominated flame retardants. They have been tested by SGS for environmental performance and are in compliance with the European Union Environmental Directive (RoSH) and higher than its index requirements. No harmful halogen gas, no corrosive gas, less fever when burning, no pollution of soil wire and cable.
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