IEC60695-2-10 Fire Testing Equipment Glow Wire Tester with Observation Window

1. Standard of Glow Wire Tester:

The glow wire tester is designed as perIEC60695-2-1, IEC60695-2-10~IEC60695-2-13 (GB/T5169.10-2006~GB/T5169.13-2006), < basic testing methods of Glow wire, basic methods of Glow wire device> and IEC829, UL 746A, DIN695, VDE0471 etc. standards.

2. Introduction of Glow Wire Tester

The glow wire tester is designed to carry out fire hazard testing on electrotechnical products in accordance with the provisions of International standards.

The control unit is supplied with all the controls and metering necessary to accurately set the temperature of the glow wire. The wire current is continuously variable by means of the panel-mounted controller and is monitored by the built-in ammeter.

A digital temperature indicator is fitted which, in conjunction with the thermocouple supplied, accurately measures the glow wire temperature. The electrical circuit of the control unit is fully protected by fuses and a miniature circuit breaker and incorporates mains on/off switching and push button control of the output current. Self contained cabinet with large viewing window and dark colored interior.

3. Parameter of Glow Wire Tester:

What is Glow Wire Testing?

Glow wire testing is an electrical safety test designed to evaluate the flame resistant properties of plastic materials used in electrical devices. IEC60695-2-11 describes the glow-wire test conducted on end products (the GWEPT, or glow-wire end product test). Its purpose is to ensure the end product does not ignite or spread flames should an ignition source (such as an overheated part) come into contact with the plastic material. This may occur in normal use, under reasonable abnormal use, malfunction or failure of the product. The glow wire simulates an over-heated part which then comes into contact with plastic materials.

In this part of the standard, the specimen to be tested is the end product, preferably the entire product if this is possible. The glow wire is either applied to the area most likely to come into contact with an ignition source, or the area of the product where the plastic material is the thinnest. The glow-wire is heated to the required temperature, which is given in the individual product standards, and then applied to the specimen for 30 seconds. It is then removed, and the specimen is observed for a further 30 seconds.

The Standard

The glow wire test is covered by the International Electrotechnical Commission (IEC) standard IEC 60695-2 Fire Hazard Testing, with four parts covering four different aspects of the glow-wire test. These are:

IEC 60695-2-10: Glow-wire apparatus and common test procedure

IEC 60695-2-11: Glow-wire flammability test method for end products (GWEPT)

IEC 60695-2-12: Glow-wire flammability index (GWFI) test method for materials

IEC 60695-2-13: Glow-wire ignition temperature (GWIT) test method for materials

The British and European equivalent of the glow wire standard is BS EN 60695-2

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