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   ?????2016/9/20   ?????2322??

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?????????????з???????С??????,????????????е?????????????(???DC????????????????????????CMA???????ж???)??

????(b)?????????????о?????????????????????7?????????????????????о???????

??????Mils????????????CMA=nd2(CMA??Circular Mil Area)

????????????????=0.7854*nd2

????????n????????о????????о????????????????UL1581??200??????о??????????????0.01mm(0.001???)?????????涼????????????в?????

????1????????????????????

??????????С???????????о???????????巽???????????????????????????????????????????С????

??????????????????(?????0.001mm)????????????????ο???????????????????????????????С???С??涨????2Mils???ж???????????????????С??涨???????2Mils,??????????????1??????????????????????????1?????С????С????????????????????????????????????????

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???????????????????????5???????????????????????????=(????-???????)/2??

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????2????????????????????????????AWG????18AWG??16AWG???????AWG????????????????

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??????????????????????????棬??С??????0.01mm??

?????????1.98*9.5mm??????10g?????????(?????????)??

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???????????????UL1581??50???????δ??????????????????????????????500+25mm/min.

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??????????е??????????????????????UL1581 Table50??С?????SPT-2??105 ??????????????????SPT-2?Integral PVC??????????UL62Table15.1??UL1581 Table50182??105 ??????CLASS??2.11,??????????????????100%?????????1500ibf/m2??136 ?棬7???????????????????65%????????????????85%??????????PVC????(SR-PVC)??????UL1581Table47.1,?????????Table50183??????????????????????100%?????????3000ibf/m2,???????????70%??70%??

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????(2)?????????????????????A??W163.87G

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????W3??????С??0.127mm??????????????

????W1

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????(4)??????? S=P/A

????P???????????????

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????????ASTM D5423-93(II??)??ASTM D5374-93????????????????????????????????Χ???????????????????????????????????????С?100-200?ο?????????????????+1.0?档

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???????????????????????100-500V???????50FT-5000FT???????????н???2С?????????????缫????????????缫???????缫???????????????????????????60????????15.6???1000????????????????2.5M.

??????10 ??-29.4 ???????????????15.6 ?桢?????1000???????

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????M?????????? TCF????????????

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??????????????????????????????????????????????ж????????????“W”???????????????CXTW22AWG????????15.6 ??225M/1000????

????(1)?ж????

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?????????????迹????C?????UL62Table33.1??????????M???????????湫???????????迹??

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??????????450g,????25*50mm??????????????????????????????????????????????????????????

????5??????????

????????18AWG??17AWG???????????????????????????涨????1????????о?????????

????6????????????????

???????????????????????????????缫??????500V DC???1?????????????????????100M?? 

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