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求助高手,看看這是什么電纜?先謝謝了!
Technical requirements
This specification talks about to HD polyethylene isolated copper cable 75 HDPE °C with neutral concentric, (2x#8+1x#8 AWG), 600 V, with stuffed and jacket for the three-wire single-phase system 120/240 volts. The geometry of the cross-sectional section of the finished cable will have to be to circulate.
Characteristics of the phase conductor
• The used raw material in coppe
• Before of its application on the copper conductor it must fulfill the requirements of norm ASTM D 1248.
• The isolation and the jacket must fulfill the requirements established in norms UL 854 and UL 1581, be adapted for humid and dry means use, to be resistant to the mechanical efforts during the installation and operation of the cable, and to be resistant to ultra-violet rays.
• The two phases
The concentric neutral conductor must be conformed by soft copper wires applied on the filling. The factor of wiring or step does not have to be inferior to the stipulated thing in UL 854.
• The wires of the concentric neutral conductor will be applied helically or by another system of no rectilinear manufacture as it stipulates UL to it 854 and must uniformly be distributed throughout the length
Characteristics of the jacket or cover
• It will have to be of HD polyethylene HDPE, and their compounds will have to fulfill norm ASTM D 1248.
• It must be adapted for humid and dry means uses.
• It must be resistant to the mechanical efforts during the installation and operation of the cable, and to be reasonably flexible.
• It must be of black color, with black pigmentation of resistant smoke a
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帶地線的電力電纜,地線采用同心導(dǎo)體結(jié)構(gòu),絕緣和護(hù)套材料均采用HDPE,護(hù)套需要防紫外線且耐干濕不同的氣候.
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對樓上的先說聲謝謝.
樓上能說明一下具體的結(jié)構(gòu)嗎,大概的也行?
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很抱歉，我手頭沒有ＵＬ７４８和ＵＬ１５８１標(biāo)準(zhǔn)，不能對此線妄加說明，你可以把這兩個(gè)標(biāo)準(zhǔn)看一看或請?jiān)摽蛻魧⒃摾|的詳細(xì)要求傳給你，你再發(fā)到網(wǎng)上來大家討論．
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采用美國線纜標(biāo)準(zhǔn)
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這是按照UL854標(biāo)準(zhǔn)的電纜，線芯可以選用UL44里的例如（XHHW,RHH,RHW等），性能也要符合UL44，材料和試驗(yàn)方法按照UL1581.這個(gè)電纜要求的是軟導(dǎo)體。
僅供參考。
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