UL2547 号线的额定电压应该是多少
前辈:UL 2547 额定电压应该是多少? 在那个标准里面可以查到啊?
因为我不是从事电线行业的,对这方面的知识了解太少,所以咨询各位一下,小女子先谢了. 发一张UL758里对于2547的规定看看~
希望下列的英文都能认识。
刚在UL的规格页里下的更新后的。
UNDERWRITERS LABORATORIES INC. APPLIANCE WIRING MATERIAL
Subj. 758 Section 2 Page 2547 Issued:1971-10-15
Revised:2003-03-31
Style 2547 Two or Three Conductor-Semi-Rigid PVC Insulated
and PVC Jacketed Wire.
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Rating 80C, voltage not specified.
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Conductors Two or three 30-16 AWG, solid or stranded, tinned
or bare copper.
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Insulation Extruded semi-rigid PVC, 9 mils minimum average,
7 mils minimum at any point.Suitable for 80C.
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Assembly Insulated singles parallel, twisted, or cabled
together, length of lay is not specified.
Barrier layer and/or fillers optional.
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Shield Optional.
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Jacket Extruded PVC, Class 43, 12 mils minimum average,
10 mils minimum at any point. ______________________________________________________________________________
Shield Optional.
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Jacket Optional.Extruded PVC, Class 43, 12 mils minimum
average, 10 mils minimum at any point.
______________________________________________________________________________
Standard Appliance Wiring Material UL 758.
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Instructions Detailed Examination.
to UL Physical Properties of Insulation and Jacket, Unaged.
*Representative Spark Test.
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UL (4)Detailed Examination.
Counter-Check (4)Physical Properties of Insulation and Jacket.
Program (4)Heat Shock.
(4)Cold Bend.
(4)Deformation.
* (12) Horizontal Flame Test.
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Marking General.
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Use Internal wiring of electronic equipment where not
exposed to movement or mechanical abuse. Rating 80°C, voltage not specified.那 意思就是 电压没限定,那多少都可以了? 電壓額定值雖沒有規定,但是除了特殊的耐高壓線外,一般電子線額定電壓都是在30~600V間。 电压没有规定就是没有强制规定,这为配线搭配提供了方便。但是绝对不是意味着此项完全不用考虑,你同样需要根据实际使用电压和你的材料状况进行确认,以免发生问题 UL758里好象有规定,绝缘厚度为0.30MM耐压300V,0.76MM是600V.
你可以看2006版的TABLE 7.4,挤压式,非氟聚合材料的绝缘厚度.
主要是说,你设计多大电压电线其电线厚度是多少,反过来呢,你知道厚度,其电压不就也知道吗?
而且也要按导体规格来分.如50-31AWG为一组,30-25又是一组等. 电压是不指定的,但是要根据UL758上规定要求生产.
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