ČSN EN IEC 60051-3

Elektrické měřicí přístroje přímopůsobící ukazovací analogové a jejich příslušenství - Část 3: Zvláštní požadavky na wattmetry a varmetry (Norma k přímému použití jako ČSN).

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Podrobné informace

Označení: ČSN EN IEC 60051-3

Datum vydání: 01.12.2021

Stran: 28

Země: Česká technická norma

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Anotace

This part of IEC 60051 applies to direct acting indicating wattmeters and varmeters having an analogue display.
NOTE - For multi-function instruments, see IEC 60051-7.
It also applies to:
- non-interchangeable accessories (as defined in 3.1.23 of IEC 60051-1:2016) used with wattmeters and varmeters;
- a combination of the instruments and the accessories provided that the adjustments have been made for the combination;
- direct acting indicating electrical measuring instruments whose scale marks do not correspond directly to their electrical input quantity, provided that the relationship between them is known;
- instruments and accessories having electronic devices in their measuring and/or auxiliary circuits.
This document does not apply to:
- special purpose instruments which are covered by their own IEC standards;
- special purpose devices which are covered by their own IEC standards when they are used as accessories

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