HD 21.2 S3/A1-2002 HD 21.2 S3/A1 Cables of rated voltages up to and including 450/750V and having thermoplastic insulation-电线电缆网

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[国外标准] HD 21.2 S3/A1-2002 HD 21.2 S3/A1 Cables of rated voltages up to and including 450/750V and having thermoplastic insulation

Danielle

P:2010-05-21 16:19:52
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HD 21.2 S3/A1-2002 HD 21.2 S3/A1 Cables of rated voltages up to and including 450/750V and having thermoplastic insulation.pdf

HD 21.2 S3/A1-2002 HD 21.2 S3/A1 Cables of rated voltages up to and including 450/750V and having thermoplastic insulation.pdf

corona - 电晕,电晕放电。由于导体周围之空气发生电离作用，而产生的放电现象。在电压超过某一极限后就会产生电晕现象，高压电缆对电晕现象基准（Corona level）非常重视，主要是由电晕基准可以判断出电缆的好坏。（0）投诉

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