IS 1248 Pt.5-1983

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标准号:IS 1248 Pt.5-1983
发布日期:1984/7/1 12:00:00
实施日期:1999/12/31 12:00:00
适用范围:1.1 This standard ( Part 5 ) covers the requirements of direct acting indicating phase meters, power factor meters and synchroscopes, having analogue display.1.2 This part also applies to non-interchangeable accessories ( as defined in 2.1.15.3 of Part 1) used with phase meters, power factor meters and synchroscopes.1.3 This part also applies to a phase meter or power factor meters whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known.1.4 This standard also applies to instruments as described in 1.1 having electronic devices in their measuring and/or auxiliary circuits.

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