SSH EN 60660:1999

Izoluesit - Provat në suportet e izoluesve të brendshëm të materialit organik për sistemet me tensione nominale më të mëdha se 1 kV por duke mos përfshirë 300 kV

Insulators - Tests on indoor post insulators of organic material for systems with nominal voltages greater than 1 kV up to but not including 300 kV

Scope

Applicable to post insulators of organic material for indoor service in electrical installations or equipment operating in air at atmospheric pressure on alternating current with a nominal voltage greater than 1 000 V up, but not including, 300 kV, as defined by range I of EN 60071-1, and a frequency not greater than 100 Hz. Composite insulators are not covered by this standard. The object of this standard is - to define the terms used, - define electrical and mechanical characteristics of post insulators of organic material and to prescribe the conditions under which the specified values of these characteristics are verified, - to prescribe methods of testing, - to prescribe acceptance criteria. This standard does not give numerical values for insulator characteristics, nor does it deal with a choice of insulators for specific operating conditions. HD 578 S1 specifies numerical values for electrical and mechanical characteristics and gives the dimensions necessary for interchangeability of post insulators.