Use

Used for fixed installation of transmission and distribution lines in AC 50Hz, rated voltage 1-3kV power systems, for transmitting and distributing electrical energy

Cables are allowed to be laid indoors, outdoors, in the air, and buried in the soil, and local water accumulation is allowed

The laying methods can be tunnels, pipelines, cable trenches, cable trays, and ducts. Armored cables can be buried directly underground, while steel wire armored cables can be laid vertically

Single core cables are not allowed to be laid inside magnetic metal pipes

Single core armored cables are made of non-magnetic metal materials

The cable laying environment should have good heat dissipation conditions

Cable specifications

Number of cores: 1, 2, 3, 4, 5, 3+1, 4+1, 3+2

Conductor cross-sectional area: 1.5~800mm2

Voltage level: 0.6/1kV, 1.8/3kV

Special properties of cables

Flame retardant/fire-resistant/halogen-free low smoke flame retardant/halogen-free low smoke flame retardant and fire-resistant

Oil resistant/UV resistant/Low temperature resistant/High temperature resistant

Anti termite/anti rodent

Rated operating temperature of conductor

The maximum rated working temperature of PVC insulated cable conductor is 70 ℃. During a short circuit (with a maximum duration of 5 seconds), the temperature should not exceed 160 ℃

The maximum rated working temperature of XLPE insulated cable conductor is 90 ℃, and during short circuit (with a maximum duration of 5 seconds), it does not exceed 250 ℃

Allowable bending radius of cable

Single core cables should not be less than 20 times the outer diameter of the cable, and multi-core cables should not be less than 15 times the outer diameter of the cable

cable structure

The main structural components of the cable are: conductor, insulation layer, and protective layer

among which

The conductor materials are: copper (CU), aluminum (AL), copper-clad aluminum (CCA)

The insulation materials are polyvinyl chloride (PVC) and cross-linked polyethylene (XLPE)

The protective layer materials are: polyvinyl chloride (PVC), polyethylene (PE), halogen-free low smoke polyolefin (LSFH), galvanized steel strip (ST), galvanized steel wire (SW), aluminum strip (AT), stainless steel strip (SST), stainless steel wire (SSW)

Typical structure of cable:

CU/AL/CCA +PVC +PVC/FR

CU/AL/CCA +PVC +STA/SWA/ATA /SSTA/SSWA+PVC/FR

CU/AL/CCA +XLPE +PVC/PE/LSFH/FR

CU/AL/CCA +XLPE+STA/SWA/ ATA /SSTA/SSWA +PVC/PE/LSFH/FR