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如題

查看了標準，確定不了成品是否要求測試節(jié)距，請叫各位大俠能否回答。

多謝了。

導體有，芯線不太清楚。

標準都規(guī)定了絞距，怎么會不測試呢？

如果我沒理解偏，樓主問的是成品電線的導體絞距會不會測試的問題吧，怎么有人扯上芯線絞距了呢？樓上的不要誤導大家啊！

如果樓主問的是導體絞距的問題,

那是要測的,

如UL電器布線的ULIPI和監(jiān)督檢查都會查到.

芯線絞合也有要求的

UL 758

12.4 The circuit conductors in a round cable shall be cabled with a length of lay that is uniform throughout
the length of the cable in compliance with Table 12.1. Grouping of the circuit conductors into pairs, triads,
quads, and other precabled subassemblies is not required.

Table 12.1
Length of lay of insulated conductors and precabled groups for cables rated greater than 30
volts

Number of insulated conductors in cable                      Maximum length of lay of insulated conductors and
precabled groupsa
2                                                                                           30 times the finished insulated conductor diameterb
3                                                                                            35 times the finished insulated conductor diameterb
4                                                                                            40 times the finished insulated conductor diameterb
5 or more                                                                             15 times the calculated diameter of the overall assembly. In a
                                                                                               multiple-layer cable, the length of lay of the conductors in each
                                                                                             of the inner layers of the cable is not specified.

linyun:
我司現(xiàn)在申請UL758.代理公司讓我們用單導體1/0.813做樣品，不知這個是否容易通過？請各位指點。

初次UL電子線認證 都是 20AWG的裸銅實心導體生產(chǎn)電線送樣的,也就是你所說的 1/0.813,只要材料別用差的,很好通過的.

如果做認證，用0.815的裸銅絲