Power cables with plastic insulation and sheath
ВВГ, ВВГз, ВВГнг(А), ВВГ-П, ВВГнг(А)-П, ВВГ-1, ВВГнг(А)-LS
DESIGNATION
Power cables with copper conductors in plastic insulation and sheath are designed for power transmission and distribution in fixed units and fixed installation of power lines with rated alternating voltage of 660 V or 1000 V and 50 Hz frequency.
Cable models and their definitions shall correspond to the details given in the table below:
|
Model |
Definition |
|
ВВГ; ВВГ-П; ВВГз |
Power cable with copper conductors, in PVC compound insulation and sheath, with "П" index (flat), with "з" index (filling of space between conductors)
|
|
ВВГнг(А) |
Power cable with copper conductors, in PVC compound insulation, with fire-resistant PVC compound sheath
|
|
ВВГнг(А)-LS |
Power cable with copper conductors, in flame-retardant PVC compound insulation and sheath with low gas and fume emission
|
|
ВВГ-1 |
Power cable with flexible copper conductors, in polyvinylchloride compound insulation and sheath
|
ARRANGEMENT
CONDUCTOR:copper, round, solid or stranded.
INSULATION: PVC compound; for cables with "нг(А)-LS" index - flame-retardant PVC compound with low gas and fume emission. Insulated conductors have distinctive color. Neutral conductor - blue colored; ground conductor - green-and-yellow colored.
STRAND: insulated conductors are stranded. PVC compound tape and sheath is laid over stranded insulated conductors with not less than 20% overlay. It's allowed to lay filling together with sheath with no tape braiding provided that sheath is easily separated from insulation.
Parallel lay in two- and three-core cables with up to 16.0 mm2 conductor area inclusively is allowed. Inthiscase"П" index goes after cable model.
During stranding of four-core cables with conductor area of 6 mm2and more as well as five-core cables - insulated conductors are located around PVC compoundkordel.
FILLING:for stranded insulated conductors of "нг(А)-LS" model - fire-resistant PVC compound; for models "нг(А)" with filling - PVC compound.
SHEATH: PVC compound; for cables with "нг(А)" index - fire-resistant PVC compound; for cables with "нг(А)-LS" index - flame-retardant PVC compound with low gas and fume emission.
NUMBER OF CONDUCTORS:1,2,3,4,5.
CONDUCTORAREA, mm²:1.5; 2.5; 4; 6; 10; 16; 25; 35; 50; 70; 95.
TECHNICALSPECIFICATIONS
Operating temperature range:from -50°С to+50°С.
Maximal continuous conductor heating temperatureduring operation:+70°С.
ВВГ, ВВГ-1 cables do not spread combustion when single laid.Cables КВПЛнг(А)-LS, КВПЛУнг(А)-LS do not spread combustion when laid as harness.
Minimal bend radius of multi-core cables during cabling - 7.5 outer cable diameters; for single-core cables - 10 outer cable diameters.
Cablesare operable at relative atmospheric humidity up to 98% at ambient temperature up to +35°C
Factory cable length for conductor areas from 4 to 16.0 mm2- 400 m;
for conductor areas from 25 to 70 mm2 - 300 m;
for conductor area of 95 mm2 - 200 m.
Operational life- not less than 30 years.
Regulations: TechnicalSpecifications16-705.499-2010 (GOST 31996-2012), Technical Specificationsof The Republic of Belarus05755944-006-94, Technical Specificationsof The Republic of Belarus500017371.030-2004, TechnicalSpecificationsBY 500017371.045-2009 (GOST 31996-2012), TechnicalSpecifications16-705.310-2001 (manufactured under license of JSC "All-Russian Research and Development Institute for Cable Industry")(GOST 31996-2012), GOST 16442-80