Protection against ignitions arising out of static,lightning,and stray currents ...
实施日期:1998-07-01
Power transformers - Part 3: Insulation levels, dielectric tests and external clearances in air (IEC 60076-3:2000 + Corrigendum 2000); German version EN 60076-3:2001
实施日期:2001-11-01
Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics, definitions
实施日期:2009-06-01
Standard Test Method for Dielectric Breakdown Voltage and Dielectric Strength of Solid Electrical Insulating Materials Using Impulse Waves
实施日期:1997-03-10
Methods for the determination of the lightning breakdown voltage of insulating liquids
适用范围:Describes two test methods, A and B, for assessing the electric strength of insulating liquids in a divergent field when subjected to standard lightning impulses. Method A is based on a step procedure ...
发布日期:1987-03-30 实施日期:1987-03-30
Pyrotechnic articles. Theatrical pyrotechnic articles. Categories of theatrical pyrotechnic articles
发布日期:2012-12-31 实施日期:2012-12-31
Determination of flash point - Abel closed-cup method.
Specific environmental condition - Electric and electronic products for plateau - Part 3: Protection requiremrnt of thunder and lightning, filth, condensation
适用范围:GB/T 20626的本部分规定了高原环境条件下电工电子产品和设备(以下简称产品和设备)的雷电、凝露与污秽防护要求。 本部分适用于海拔1000m以上至5000m使用的高压产品和设备及海拔2000m以上至5000m使用的低压产品和设备。 ...
发布日期:2006-11-09 实施日期:2007-04-01
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