Description

OVERVIEW

– CV / FR fire-resistant cables for power distribution systems are designed to maintain the power of the equipment, limit the spread of flames when affected by fires, suitable use in buildings. … voltage level of 0.6 / 1 kV, fixed installation.
– Fire-resistant cables are suitable for use in public works, backup electrical systems, emergency systems, fire alarms, sprinkler systems, smoke and smoke alarms, emergency light systems. …

APPLIED STANDARD

– TCVN 5935-1 / IEC 60502-1
– TCVN 6612 / IEC 60228
– IEC 60331-21; IEC 60332-1,3
– BS 6387; BS 4066-1,3

CONSTRUCTION

TECHNICAL CHARACTERISTICS

– Rated voltage U0/U: 0,6/1 kV.
– Test voltage: 3,5 kV (5 minutes).
– Maximum conductor temperature for normal operation is 70°C.
– Maximum conductor temperature for short-circuit (5s maximum duration) is:
– 140°C with Nominal area larger than 300mm2.
– 160°C with Nominal area up to and include 300mm2.
– Wires are subjected to fire at 950°C for 3 hours.
– Wires pass BS 6387 Cat. CWZ.
– The fire resistant wires have a significant reduced tendency to propagate fire.
– The wires must self-extinguish after removing the fire source.