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2015-09-15
The test temperature for glow wire tester required by IEC60884-1 standard
Regarding Accessories of electrical appliance, not only mechanical property test, but also fire resistance test is applied to. Commonly, glow wire tester is used to perform the fire resistance test based on different accessories and IEC60884-1 Standard :
-For accessories of transformer , by the glow wire test made at a temperature of 550 °
-for parts made of insulating material, necessary to retain current-carrying parts and parts of the earthing circuit of fixed accessories in position, by the test made at 850 °C, with the exception of parts of insulating material needed to retain the earth terminal in position in a box, which shall be tested at a temperature of 650 °C;
NOTE 1 Side earthing contacts fixed to the main part (base) of the socket-outlet are not considered to be retained in position by a removable cover when the plug is not inserted.
– for parts of insulating material, not necessary to retain current-carrying parts and parts of the earthing circuit in position, even though they are in contact with them, by the test made at a temperature of 650 °C.
The Glow Wire Tester ZLT-GTR, manufactured by Zhilitong Electromechanical Co.,Ltd , is mounted with “ Autonics “ temperatures meter, which provide accurate digit meeting with above IEC60884-1 test temperature requirements.
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