Add : 3-7, 1 Floor, Block C, No.23 Panlong Industrial Zone, Longxi Road, Guangzhou, China
News&Successful Cases
2015-11-02
The Required Glow Wire Test Temperature for External Parts of Insulating Material for power transformers, power supplies,reactors and similar products
Base on IEC 61558-1 clause 27.3.1 , external parts of insulating materials shall be resistant to ignition and spread of fire.
Compliance is checked by subjecting enclosures and other external accessible parts to the glow wire tester with the temperature of the glow wire as follows:
– 650 °C for enclosures
– 650 °C for parts retaining current carrying (keeping in position) parts in position and terminals for external conductors which carry a current up to 0,2 A during normal operation
– 750 °C for parts retaining (keeping in position) current carrying parts in position and terminals for external conductors with fixed connection (e.g., soldering) which carry a current exceeding 0,2 A during normal operation
– 850 °C for parts retaining (keeping in position) current carrying parts in position and terminals for external conductors with non-fixed connection which carry a current exceeding 0,2 A during normal operation.
The Glow Wire Tester ZLT-GTR manufactured by Zhilitong Electromechanical Co., Ltd , can implement glow wire test at temperature of 650 °C,750 °C and 850 °C.
Next : The required Glow Wire Test Temperature for Electric Toys
