Copper power cable (COG) is especially flexible with rubber insulation and in a rubber sheath, single core. Often used for connection in arc welding of electrode holders, automatic or semi-automatic welding machines with a source of rated AC voltage up to 220 V rated frequency 50 Hz or DC voltage 700 V.
1. Conductive core – copper, multi-wire, round, 6 class according to DSTU. Tropical conductors of cables in tropical design are made of copper wire tinned with tin or coated with tin-lead solder with a tin content of not less than 40%.
2. Separating layer – polyethylene terephthalate film is applied on top of the conductor core. For cables with conductive cores made of copper tinned wires, it is allowed to make cables without film between the housing and insulation.
3. Insulation and sheath – successively applied insulation of insulating rubber and sheath of hose rubber or in the form of insulating and protective sheath. Insulation and sheath thickness are shown in the Appendix. The sheath of cables intended for operation in tropical conditions is antiseptic.
– Operating temperature of cables:
for KOG1: from -45 ° C to + 40 ° C
for KOG1-T: from -10 ° C to + 50 ° C
– Long-term permissible temperature in the veins is not more than: 75 ° C
– Tensile loads on the cable per 1 mm2 nom. the cross section of the core should be no more than: 19.6 N.
– Minimum permissible bending radius of cables: at least 3 outer diameters of the cable
– Construction length of cables: not less than 100 m
– Warranty period of cable operation – 6 months from the date of commissioning, but not later than 12 months from the date of manufacture.
– Service life of cables: not less than 4 years.
|Nominal cross section of cores, mm2||Nominal outer diameter, mm||Estimated weight of 1 km of cable, kg|
|1 x 16||10.2||240|
|1 x 25||11.9||330|
|1 x 35||13.9||440|
|1 x 50||15.8||615|
|1 x 70||17.8||850|
|1 x 95||20.0||1150|
|1 x 120||22.8||1390|
|1 x 150||25.0||1750|