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2015-10-24
The glow wire test for power transformers, power supplies,reactors and similar products
According to IEC 61558 clause 27.3 , all parts of the transformer made of insulating material shall be resistant to ignition and spread of fire.
Compliance is checked by subjecting parts made of insulating materials to the glow wire tester, specified in IEC 60695-2-10 and amended in Annex E of this standard.
The test shall be performed on a complete transformer. If this is not possible, a suitable specimen of the part to be tested shall be used.
If necessary, parts of an enclosure can be removed or a suitable specimen can be cut off to perform the test. However, care shall be taken to ensure that the standard test conditions are not significantly different from those occurring in normal use, with regard to shape, ventilation,effects of thermal stresses and of possible flames, burning droplets or glowing particles falling in the vicinity of the specimen.
The glow wire tester ZLT-GTR manufactured by Zhilitong Electromechanical Co., ltd, conform to above requirements of IEC 61558 and IEC 60695-2-10 standard.
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