Introduction:
Fire-resistant cable refers to the cable that can keep a safe running time in the case of flame combustion.
This Fire Resistance test equipment is designed according to the requirements of IEC60331-11,and used to obtain the refractory characteristics of a fire resistant cable or optical cable under flame conditions.


Standards
• IEC 60331 Part 11:Tests for electric cables under fire conditions - Circuit integrity - Part 11: Apparatus - Fire alone at a flame temperature of at least 750 degree C

• IEC 60331 Part 21:Specifies the test procedure and gives theperformance requirement, including a recommended flame application time, for cables of rated voltages up to and including 0,6/1,0 kV required to maintaincircuit integrity when subjected to fire under specified conditions
 

Main Features:
1, All fixtures of Wire and Cable Fire Resistance Characteristics Test Equipment are made of stainless steel;
2, The burner is a belt type propane blowtorch with a Venturi mixer, and the burner nozzle is length 500mm, width 15mm;
3, Those burning holes are staggered into 3 rows, and the front width is 15mm, holes diameter is 1.32mm and these holes center distance is 3.2mm;
5, One end of the specimen holder is equipped with a clamp to fix the sample, and the other end is convenient for heat transfer along the longitudinal specimen;
6, The cable sample is supported by two metal rings, and the middle length of the two rings is about 300mm;
7, An inner diameter of the sample supporting metal rings is 150mm, and the cross-sectional diameter of the ring is 10 ± 2mm.
8, The position of the burner torch from burning the bottom is not less than 200mm, and not less than 300mm from the tank wall.
 

Combustion System:
1, Independent standard electrical control platform;
2, With intelligent detection function, when a short circuit in the sample during the test, automatic alarm and turn off the fire source.
3, Fuse current in the experimental circuit is 2A;
4, The sample is applied to power of AV 100V ~ 1000V adjustable;
5, The time can be set free for the fire, the time recommended by standards is 90min.
 

Technical Specifications