電線電纜網(wǎng) > 國外線纜 > 求教！ UL62尼龍包覆導(dǎo)線的彎曲試驗(yàn)5.1.9怎么確定老化時(shí)間和溫度？（完整版）
求教！ UL62尼龍包覆導(dǎo)線的彎曲試驗(yàn)5.1.9怎么確定老化時(shí)間和溫度？ - 無圖版
995399673 --- 2022-01-07 21:01:40
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求教！ UL62尼龍包覆導(dǎo)線的彎曲試驗(yàn)5.1.9，這個(gè)條目沒看到老化時(shí)間和溫度的具體規(guī)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.
這很好理解。after specimens have been subjected to the air-oven aging test applicable to the insulation class試樣經(jīng)過適用于絕緣等級(jí)的空氣烘箱老化試驗(yàn)后。 即是按絕緣的老化條件。
lgf2005 --- 2022-01-12 23:11:28
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用尼龍的考量是什么？更小的OF?