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prEN IEC 60477:2021

Laboratory DC resistors

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prEN IEC 60477:2021; IEC 60477:202X
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Põhitekst
01.11.2001
Põhitekst
This document applies to resistors intended for use as laboratory DC resistors (hereinafter referred to as “resistors”) comprising standard resistors, single or multiple resistors of accuracy Classes 0.00005…10 and single or multi-dial resistors of accuracy Classes 0.0005…10. This document does not apply to: a) resistors which are intended for use solely as permanent mounted circuit components, b) resistors used on alternating current or on pulsed current, c) active resistor d) series resistors and shunts which are considered as accessories of electrical measuring instruments in the relevant IEC publication. EXAMPLE 1 IEC 60051: Recommendations for Direct Acting Indicting Electrical Instruments and Their Accessories. EXAMPLE 2 IEC 60258: Direct Recording Electrical Measuring Instruments and Their Accessories.
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