美女胸被狂揉扒开吃奶的网站o_亚洲日韩av中文无码专区_东京热激情无码专区_久久HEZYO久综合亚洲色_欧美成人高清视频_国产精品乡下勾搭老头_欧美一级v片在线播放_成人午夜国产视频_男女猛烈无遮挡免费动态图_亚洲一区国产精品视频

如題

查看了標(biāo)準(zhǔn)，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(dǎo)體有，芯線不太清楚。

標(biāo)準(zhǔn)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(dǎo)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(dǎo)大家��！

如果樓主問的是導(dǎo)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(dǎo)體1/0.813做樣品，不知這個是否容易通過？請各位指點(diǎn)。

初次UL電子線認(rèn)證 都是 20AWG的裸銅實(shí)心導(dǎo)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.