aper UL product categories as outlined in the table below that better align with compliance in the supply chain for subscribers 每个UL产品类别如桌所述在那更好之下与服从在供应链排列为订户[translate] aStandard lightning impulse withstand voltage 标准闪电脉冲承受电压[translate]...
The procedure for selection of the withstand voltages for equipment phase-to-ground and phase-to-phase insulation systems is specified. A list of standard insulation levels, based on the voltage stress to which the equipment is being exposed, is also identified. This standard applies to three-pha...
It is mainly used for safety performance (dielectric performance) detection of low-voltage electrical appliances, high and low voltage switches, solar energy, electricity meters, relays, leakage protectors, etc. The impulse output can be controlled by computer, and...
iii Subclause 4.3 on the power frequency and lightning impulse open gap withstand voltage test has been revised to allow a bias test as an alternate to the standard test for switches rated 362 kV and above. Also, 4.4 on switching-impulse tests of extra-high voltage switches has been ...
Standard Test Method for Verifying the Specified Dielectric Withstand Voltage and Determining the Dielectric Breakdown Voltage of a Membrane SwitchAstm
voltage withstand requirement applies, e.g. for platform-mounted equipment, the recommendations in Annex G of IEC 60071-2 shall be used. Minimum air clearance versus a.c. power frequency withstand voltage, according to Figure 4, shall apply if no other more detailed requirements are specified. ...
IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear Amendment 1: Short-Time and Short-Circuit Withstand Current Tests- Minimum Ar... IEEE Standard for Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear Amendment 1: Short-Time and Short-Circuit Withstand Current Tests...
For Loadbreak type fuse cutout, its arc chamber made of special reinforced nylon material. It has good mechanical strength, anti-aging and flame retardant. suitable for use the area like high ultraviolet area, high altitude area, coastal area, etc. ...
汽车点烟器标准（Standardforautomobilecigarettelighter）汽车点烟器标准（Standard for automobile cigarette lighter）QC in Central China Huahuaren People The people and the people Common Republic Guo and Guo China National steam Steam car Car dealer Line industry Trade mark Standard Sure ...
voltage of approximately 500 V applied,the measurement being made 1 min after application of the voltage.The measurements are made consecutively as indicated below:a) between all clamping units connected together and the body for connecting devices withoutfixing means or between all clamping units ...