Glow-wire

Glow-wire U Type Nickel / Chomium Element for Flammability Test Chamber

Product overview:

This glow-wire meets the requirements of IEC 60695-2-10 clause 4.1. The glow-wire is formed from nickel/ chromium (> 77 % Ni/20 ± 1 % Cr) wire, having an overall diameter of 4.00±0.07mm (before bending). The dimensions of the glow wire loop are as detailed in Figure 1.

Technical Parameters:

No.	Item	Parameters
1	Material	nickel/ chromium (> 77 % Ni/20 ± 1 % Cr)
2	Diameter	4.00±0.07mm (before bending)
3	Detailed dimension	Refer to IEC 60529-2-10 Figure 1
4	Hole for thermocouple	Ф1mm (Ф0.5mm can be optional)

 

 

How to prepare a new glow-wire?

 

A new glow wire shall be annealed for a total at least 10 h by being subjected to a current of at least 120A before being sued for a test run. The total annealing time may be achieved cumulatively. To avoid damage, the thermocouple shall not be installed during annealing. At the end of annealing, the depth of the thermocouple pocket hole shall be verified.

 

The glow-wire in the glow-wire test apparatus