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1. cores and sections
1, 2, 3, 3+1, 3+2, 3+3, 4, 4+1, 4+2, 5 and so on.
no. of core and sectional area(mm2) :
1 core 1.5-800 25-800 25-1200 25-1200 35-1200 50-1200 50-1200 50-1200
2 core 1.5-185 25-185
3 core 1.5-400 25-400 25-400 25-400 35-400 50-400 50-400 50-400
4 core 2.5-400 25-400
5 core 2.5-400 25-400
2. construction:
conductor: solid or stranded copper
insulation: cross-linked polyethylene (xlpe) or polyvinyl chloride (pvc)
filler: polypropylene filament with lapped binding tape
binder: binding tape
inner sheath: polyvinyl chloride (pvc)
amour: galvanized steel wire armored(swa) or steel tape armored(sta)
sheath: polyvinyl chloride (pvc)
3. nominal section
area(mm2) :1.5 2.5 4 6 10 16 25 35 50 70 95 120 150 185 240 300 400 500 630 800
4. operating features:
1)the maximum conductor operating temperature: 90°c
during short circuit (lasting less than 5 seconds) the maximum temperature of the cable conductor shall not be above 250°c
environment temperature should be no lower than 0°c for laying the cable.
2)bending radius of the cable:
single core cable: non armored cable 20d, armored cable 15d
cores cable: non armored cable 15d, armored cable 12d.
remarks: d means practical external diameter of the cable