What is swa cable meaning and steel wire specification?
steel wire armoured cable
SWA is steel wire armoured cable, it comes in different conductor sizes, and number of cores. It is suitable for buryed into the soil.
 
Steel Wire Armoured cable can be buried directly. Its best to lay it in sand with warning tape or tiles/boards above. People try to use cable duct wherever possible. Make it much easier if you ever have to replace it.
 
Product standard:
 
1, products based on GB/T12706-2002 national standards.
2, at room temperature, the cable is subjected to AC 50Hz, 3.5kV voltage test for 5 minutes and can not breakdown.
3, 20℃ conductor dc resistivity: copper conductor ≤0.017241Ωmm2/mo; aluminum core is less than 0.028Ωmm2/m.
4, combustion performance (flame retardant cable) according to the GB/T18380-2001 standard to test.
 
Scope of application:
This product is suitable for the use of 0.6/1kV and below power distribution network or industrial device for fixed laying.
 
Use features:
1, this product is suitable for AC rated voltage 0.6/1kV (Uo/U) and the following transmission and distribution lines.
2, the highest long-term working temperature of cable conductor: 70℃.
3, armored cable bending radius should not less than 20 times of the cable diameter.
4, laying temperature should not be less than 0℃.
5, at short circuit, the conductor's highest temperature should be no more than 160℃, duration time shall no more than 5 seconds.
 
Armouring wire coating is divided into two categories: one class is the galvanized layer; the other is galvanized -5% aluminum - rare earth alloy coating. Daily production of steel wire is mostly galvanized layer.
 
The coating weight of steel wire coating is divided into two groups: I group  and group II. The standard: the armored steel wire should give priority to the use of the following nominal size wire: 0.8 mm, 1.25 mm, 1.6 mm, 2 mm, 2.5 mm, 3.15mm, 4 mm, 5 mm, 6 mm.
 
SWA cable model:
Steel wire armoured power cable models: VV32, VVP32, ZRVV32, NH-VV32;
Control cable steel wire armored cable models: KVV32, KVVR32, KVVP32, ZR-KVV32.
 
The nominal diameter of armored steel wire:
armored steel wire

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