BS 89-1(1990) : 1990被替代
DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING INSTRUMENTS AND THEIR ACCESSORIES - SPECIFICATION FOR DEFINITIONS AND GENERAL REQUIREMENTS COMMON TO ALL PARTS
出版：British Standards Institution
專家解讀視頻
Describes direct acting indicating electrical measuring instruments having an analogue display. Covers ammeters and voltmeters, wattmeters and varmeters, frequency meters of pointer and vibrating-reed types, phasemeters, power-factor meters and synchroscopes, ohmmeters, impedance meters and conductance meters, multi-function instruments. Also applies to certain accessories used instruments. Applies to a direct acting indicating electrical measuring instrument whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known. Does not apply to special purpose instruments which are covered by their own I E C standards or contain either requirements for protection against environmental conditions or tests.
EN 60051-1 : 2017 - Identical
IEC 51-1 : 84 AMD 2 95 - Identical
EN 60051-1 : 2017 - Identical
IEC 51-1 : 84 AMD 2 95 - Identical
