- BrandЩучинский завод Автопровод, ОАО
- Country of manufactureBelarus
- Type spare partWiring
Wires are intended for the fixed installation of an electric network, including the aircraft equipment, on rated voltage to 250 V with a frequency up to 2000 Hz or constant tension to 500 V at a temperature from minus 50 °C to plus 70 °C.
Brands of wires and their name have to correspond provided in the table:
|BPVL||Wire with a copper tinned vein in isolation PVC, in a braid from cotton (x/) a yarn, synthetic threads or the combined braid consisting from twisted x / a yarn and synthetic threads, varnished, for an onboard network|
|BPVLE||Wire with one or several copper tinned veins in isolation PVC, in a braid from x / a yarn, synthetic threads or the combined braid consisting from twisted x / a yarn and synthetic threads, varnished, in the screen from copper tinned a provolok for an onboard network|
|BPVLNG (C)||Wire with a copper tinned vein in PVC of isolation of the lowered combustibility, in a braid from synthetic threads, varnished, for an onboard network|
|BPVLENG (C)||Wire with one or several copper tinned veins in PVC of isolation of the lowered combustibility, in a braid from synthetic threads, varnished, in the screen from copper tinned a provolok for an onboard network|
CONDUCTING VEIN - copper a wire, tinned tin or tin-lead solder with the content of tin not less than 61%.
ISOLATION - PVC plastic compound for wires of BPVL, BPVLE; for wires BPVLNG (C), BPVLENG (C) - PVC plastic compound of the lowered combustibility.
BRAID X / yarn or twisted x / yarn and synthetic threads in the ratio 1:1. Braid density coefficient not less than 90%. Over isolation of wires of BPVL, BPVLE the braid from x / a yarn, synthetic threads or from twisted x / a yarn and synthetic threads, for wires BPVLNG is imposed (C), BPVLENG (C) - from synthetic threads.
The SCREEN - on one or several isolated veins in the varnished braid of wires of BPVLE, BPVLENG (C) the screen from copper a provolok with a diameter from 0,12 mm to 0,26 mm, tinned by tin or tin-lead solder with the content of tin not less than 61% is imposed.
Coefficient of area density of the shielding braid not less than 70%.
SECTION of VEINS, mm ² - 0,35 to 120.
The number, nominal section and design of conducting veins, nominal radial thickness of isolation, the maximum outer diameter of wires have to correspond specified in the table:
|Brand||Number of veins||Nominal
section of veins, mm2
outer diameter, mm
Electric resistance of isolation on length of 1 km at a temperature of 20 °C:
- not less than 2000 megohms for wires with a section up to 2,5 mm ² inclusive,
- 100 megohms for wires with a section from 4,0 mm ² above.
Wires are operated in the conditions of influence of various percussions and vibration loadings, meet the requirements of the increased resistance to excesses, attrition and breakdown. They are steady against sunlight, atmospheric condensate, static dust, mold mushrooms, against influence of gasoline, hydraulic liquid, kerosene, mineral oil, salty water and low-combustible. The varnished braid of wires is steady against influence of lubricant oils and diesel fuel.
The term of safety of cables at storage in the enclosed space not less than 3 years.
Construction length of wires is not less than 15 m.Average service life of wires of 17,5 years.