电线电缆网 > 国外线缆 > 求教！ UL62尼龙包覆导线的弯曲试验5.1.9怎么确定老化时间和温度？（完整版）
求教！ UL62尼龙包覆导线的弯曲试验5.1.9怎么确定老化时间和温度？ - 无图版
995399673 --- 2022-01-07 21:01:40
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求教！ UL62尼龙包覆导线的弯曲试验5.1.9，这个条目没看到老化时间和温度的具体规定？
drtthdc --- 2022-01-07 22:47:56
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hpq178 --- 2022-01-08 08:59:57
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5.1.9 Bend test on nylon-covered conductors
A nylon covering over an individual insulated conductor (see Clause 4.1.3.4) or on a SPT-1 cord (see
Clause 4.3.10.4) shall not show any cracks when wound six complete close turns around a mandrel
having the same diameter as the fifinished conductor (the minor diameter in the case of a SPT-1 cord) after
specimens have been subjected to the air-oven aging test applicable to the insulation class. Following the
air-oven test, the specimen shall be allowed to cool for 16 h to 96 h prior to flflexing. Wrinkles or folds in
the nylon do not constitute failures.
这很好理解。after specimens have been subjected to the air-oven aging test applicable to the insulation class试样经过适用于绝缘等级的空气烘箱老化试验后。 即是按绝缘的老化条件。
lgf2005 --- 2022-01-12 23:11:28
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用尼龙的考量是什么？更小的OF?