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  • FIRE RESISTANCE OF ELECTRIC CABLES (AB01) - noselab
  • FIRE RESISTANCE OF ELECTRIC CABLES (AB01) - noselab
  • FIRE RESISTANCE OF ELECTRIC CABLES (AB01) - noselab

FIRE RESISTANCE OF ELECTRIC CABLES (AB01) - noselab

Cod: 430601Standard: IEC 60331-11, BS 6387(C-W-Z), EN 50200, IEC 60331-21.

This test is carried out to verify circuit integrity even during a fire.

A sample of cable is held horizontally over a ribbon flame at about 750 °C. A test voltage is applied continuously for a period of 3 hours to the cable and no break or short circuit should occur in the cable. (not supplied). Complying with Standard: IEC 60331-11, BS 6387(C-W-Z), EN 50200, procedure IEC 60331-21.

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    Sample supporting system:

    • n. 1 110 mm stainless steel rod having Ø 10 mm.
    • n. 5 150 mm Ø rings + n.2 Supports.
    • n. 2 double clamps + n. 2 supporting clamps.
    • 500 mm long ribbon type propane gas burner with three lines of holes.
    • Complete with Venturi mixer, support, safety igniter.
    • Flame safety device with piezoelectric igniter.
    • Temperature measurement device: n. 2 K-type stainless steel sheathed thermocouples 1,5 mm with differential reader.


    Control device for flow rate:

    • Mass flowmeter for propane gas flow 5 l/min, precision ±0,25.
    • Mass flowmeter for air flow 80 l/min, ±5.
    • n. 2 pressure gauges suitable for measurements in the range 0 / 7.5 kPa.
    • n. 2 air and gas flow adjusting valves.
    • Temperature measure with averaging.

    It is thus recommended that a standard test chamber, i.e. the design of 27 m3 volume in accordance with IEC 61034-1, be used.

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