Cable Vvgng(A)-LS, VVG-Png(A)-LS
CABLE BRAND | DESIGN FEATURES | APPLICATION SCOPE |
VVGng(A)-LS | Cable with copper single-wire or multi-wire conductors, with insulation and sheath made of PVC plastic with reduced fire hazard | For group installation, taking into account the volume of flammable load of cables, in indoor electrical installations, as well as in buildings, structures and closed cable structures For group installation, taking into account the volume of flammable load of cables, in indoor electrical installations, as well as in buildings, structures and closed cable structures |
VVG-Png(A)-LS | Cable with copper single-wire or multi-wire conductors, with insulation and sheath made of PVC plastic with reduced fire hazard, flat |
The letter "A" in the cable designation indicates the category of flame retardancy during tests according to GOST IEC 60332-3-22. This type of tests corresponds to the flame retardancy limit П1б according to GOST 31565. A distinctive feature of the cables of the "нг(А)" design is that, in comparison with cables of the ordinary design made of PVC plastic, in addition to flame retardancy according to category A when laid in bundles, the cables are characterized by low smoke-forming ability during combustion and smoldering (smoke formation index during combustion and smoldering of a cable product according to GOST 31996). Thus, the cable of the "нг(А)-LS" design demonstrates better fire safety properties in comparison with cables of the "нг(А)" design.
CABLE BRAND, NUMBER AND NOMINAL CROSS-SECTION OF CABLES
CABLE BRAND | NUMBER OF VILLAGES | NOMINAL CROSS-SECTION OF MAIN CORE CONDUCTORS, MM 2 | |
rated voltage, kV | |||
0.66 | 1.0 | ||
VVGng(A)-LS | 1 | 1.5-50 | 1.5-50 |
2,3,4 and 5 | 1.5-35 | 1.5-50 | |
VVG-Png(A)-LS | 2,3 | 1.5-10 | 1.5-10 |
MAIN TECHNICAL AND OPERATIONAL CHARACTERISTICS
NOMINAL VOLTAGE | 0.66;1 kW |
Ambient temperature during cable operation: | from -50ºС to +50 ºС |
Relative humidity at temperatures up to + 35ºС | 98% |
Minimum cable laying temperature without preheating: | -15ºС |
Maximum continuous permissible operating temperature of conductors | +70ºС |
Maximum permissible heating temperature of cable cores in overload mode | +90ºС |
Maximum heating temperature of cable cores during short circuit | 160ºС |
Maximum heating temperature of cable cores under the condition of non-ignition during a short circuit | 350ºС |
Minimum allowable bending radius during installation: - single-core: - multi-core: | not less than 10 cable diameters not less than 7.5 cable diameters |
Service life, not less than | 30 years old |
Warranty period of cable operation from the moment of commissioning | 5 years |
Storage conditions for cable | storage conditions of the wire in terms of exposure to climatic factors must comply with group OZh-2 GOST 15150 |
