Cable Fire Resistance Impact Water Spray Test Machine For BS 6387 IEC 60331 The fire resistance tester for wires and cables is suitable for testing whether cables or optical cables maintain their integrity when exposed to flames at a temperature not lower than 750°C, and whether they maintain their integrity when exposed to flames at a temperature not lower than 830°C and subjected to impact. Applicable Standards BS6387 IEC60331 (Parts 1, 2, 11, 21, 23, 25) BS 8491 Standards