How to buy wire and cable?
Fire-resistant cable refers to the cable that can maintain a certain period of safe operation under the premise of flame burning. In China's national industry standard GB12666.6 (etc. IEC331) will be fire-resistant materials experiments into A, B these two levels, A flame temperature of 950 ~ 1000 ℃, constant supply fire length of 90min, B flame temperature of 750 ~ 800 ℃, constant supply fire length of 90min, all experimental period, the test piece should bear the rated current value specified by the commodity.
2022-09-29
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