Technical Specifications

- AVT steel wires corresponds with ТU 16.К71-015-87 (Company Standard);

- Maximum working temperature of AVT wire is from -50°C to +50°C;

- Maximum relative humidity of AVT wire at +40°С temperature is 98%;

- Electric resistance of lead cores of the AVT wire to DC, converted to 1 km length at the temperature +20°С; in shipment and delivery has to correspond with GOST 22483-77 (State Standard); in operation - time and storage – the value to be 20% more than stated in GOST 22483-77;

- Test DC voltage of the wire as per category EI-1 GOST 23286-78 (State Standard) without immersing into water;

- Test AC voltage of the wire at 50 Hz frequency within 15 min with immersing into water without preliminary soaking the wire in the water is 2500 V;

- Maximum working temperature of lead core of the AVT wire is 70°C;

- Breaking load of the strength rope, not less than 2300 N;

- Operating period of the cables is not less than 7 years. Actual life time is not limited by this time, but to be defined by cable technical condition;

- Factory length of AVT wire is not less than 110 m.

Structure

- Lead core made of Aluminum type AM and APM and corresponds with GOST 22483-77 (State Standard) with a core section 2,5 – 10 mm2 for class 1 and a core section 16 mm2 – not less than class 2;

- Insulation of the lead cores made from black color PVC incombustible elastron;

- Insulation of the supporting steel rope corresponds with GOST 3062-80 (State Standard);

- Steel strength rope made from black color PVC incombustible elastron;

- Insulated lead cores twisted around insulated steel rope.

Applications

Wires with a steel rope are proposed for distributing and transferring electric energy in power and lighting networks with voltage up to 380 V at 50 Hz frequency. AVT wires designed for external laying as well as entering into houses and premises according in the district of 1st and 2nd glare ice classification.

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