BS EN 60358-2:2013 pdf download – Coupling capacitors and capacitor dividers Part 2: AC or DC single-phase coupling capacitor connected between line and ground for power line carrier-frequency (PLC) application a) air-gap arrester; measurement of the protection level voltage; the voltage AC or DC is increased until breakdown.The breakdown voltage must be withinthe range specified by the manufacturer; b) arrester; measurement of the reference voltage of arrester; the AC voltage is increased on the arrester until the current reach 1 mA r.m.s, themeasured reference voltage must be within the range specified by the manufacturer. 10 Type tests Clause 10 of lEC 60358-1:2012 is applicable with the following additions:10.200 Test on capacitor 10.200.1 High frequency capacitance and equivalent series resistance The measurements shall be carried out on a complete capacitor or on a capacitor unit. The capacitances and the equivalent series resistances shall be measured at the two temperaturesequal to the limits of the temperature category and at a temperature within the standard rangefor testing (IEC 60358-1:2012,Clause 7), at several frequencies over the whole frequencyrange specified in Clause 1. The measured values of the capacitance between the line and low voltage terminals shall notdeviate by more than -20 % to +50 % from the rated capacitance. For very high capacitance value and higher rated voltage values, the self-inductance of thecapacitor (typical 1 uH/m) will not permit to cover the complete PLC frequency range given inClause 1. in that case the usable frequency range shall be agreed between manufacturer andpurchaser (see Annex AA). The measured values of the equivalent series resistance between the line and low voltageterminals of the complete equipment shall not exceed 40 Q at any frequency and temperature. For the lower measuring frequencies (for instance 30 kHz to 100 kHz) with a temperatureequal to the lower limit of the category, or for capacitor stacks with a capacitance equal to orless than 2 000 pF, or for Um greater than 420 kV, the equivalent series resistance may behigher than 40 32. In this case,the value shall be agreed between manufacturer andpurchaser. For high frequency characteristics and measuring methods,see Annex AA. Iln the case of practical difficulties in carrying out the measurements at the limits of thetemperature category, the purchaser and the manufacturer may agree on measurements overa smaller temperature range, or on measurements performed on a model capacitor containinga limited number of elements. 10.200.2 Measurement of the stray capacitance and...
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