ul絕緣電阻
請問ul不帶w電線的絕緣電阻是不是仍是2.5M了?還是有更新，謝謝! 什么标准里面的 说的是ul62吧，是2.5MΩ*KFt 仍是2.5MΩ*KFt，怎麼我們公司工程師說修改為150了呢?沒看到標准更新啊! 2.5应该是正确的，不可能改为150什么的吧，可能是针对其它的东东，可具体查查标准啦！ 没有看到更新的呀.UL62-2006的条款:
5.2.3 Insulation resistance
5.2.3.1 Insulation resistance for all ²W² Type cords at 15°C
The insulation resistance of the insulated conductors shall be not less than shown in Table 47 or 48 when
a specimen of at least 15 m (50 ft) of the finished cord is tested in water at 15 °C immediately following
the dielectric strength test described in Clause 5.2.2. If tested at temperatures different than 15 °C, the
values shall be corrected to 15 °C.
5.2.3.2 Insulation resistance for all indoor cords at room temperature
The insulation resistance of the insulated conductors shall be not less than 0.76 GΩ•m (2.5 MΩ•1000 ft)
at 15 °C when a specimen of the finished cord at least 15 m (50 ft) in length is tested in air at 15 °C or
higher after conditioning for at least 6 h and immediately following the dielectric strength test described in
Clause 5.2.2.
5.2.3.3 Test method
Compliance with all insulation resistance tests shall be determined in accordance with the method
described in CSA C22.2 No. 0.3, Clause 4.28.2.1 and Table 15; UL 1581, Section 920; or
NMX-J-294-ANCE.
谁有更新的版本有修改这个内容的信息的吗? UL758里面是对潮湿场所级AWM绝缘电阻有规定的,
具体为:34室温中短期绝缘电阻试验（潮湿场所级AWM）
34.1成品绝缘线（除去任何护套，屏蔽和护套）应具有大于2.5MΩ.1000ft导体（0.75MΩ.KM）的绝缘电阻。应按UL第920节的规定做试验。 ul62普通线还是2.5MΩ*KFt，你们工程师说的可能是带“W”的电线，不过那也不一定全是150MΩ*KFt。 同意7楼的观点....
你工程师是搞错了.... 工程师说的没有错，标准也没有更新，只是你们一直没有仔细看标准而已。因为'W"型的电线的绝缘电阻是不同的，它也与线型线号有关，并不是统一的2.5M. 标准条款如5楼所说，见UL 62 5.2.3.1，但具体要见UL 62 table 47 和48。150对应的是16AWG的SJTW, STW, SJTOW, STOW等线型的。我本来想贴表格上来的，没贴上。有兴趣的自已再仔细看看UL 62吧。
页:
[1]
2
