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SIST EN 60051-4:1995
01-avgust-1995
1HSRVUHGQLND]DOQLDQDORJQLHOHNWULþQLPHULOQLLQVWUXPHQWLLQQMLKRYSULERU±GHO
3RVHEQH]DKWHYH]DPHULOQLNHIUHNYHQFH ,(&
Direct acting indicating analogue electrical measuring instruments and their accessories -
- Part 4: Special requirements for frequency meters
Direkt wirkende anzeigende elektrische Meßgeräte und ihr Zubehör; Meßgeräte mit
Skalenanzeige -- Teil 4: Spezielle Anforderungen für Frequenz-Meßgeräte
Appareils mesureurs électriques indicateurs analogiques à action directe et leurs
accessoires -- Partie 4: Prescriptions particulières pour les fréquencemètres
Ta slovenski standard je istoveten z: EN 60051-4:1989
ICS:
17.220.20 0HUMHQMHHOHNWULþQLKLQ Measurement of electrical
PDJQHWQLKYHOLþLQ and magnetic quantities
SIST EN 60051-4:1995 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 60051-4:1995
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SIST EN 60051-4:1995
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SIST EN 60051-4:1995
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SIST EN 60051-4:1995
NORME CEI
INTERNATIONALE IEC
51-4
INTERNATIONAL
Quatrième édition
STAN DARD
Fourth edition
1984
Appareils mesureurs électriques indicateurs
analogiques à action directe et
leurs accessoires
Quatrième partie:
Prescriptions particulières pour les fréquencemètres
Direct acting indicating analogue electrical
measuring instruments and their accessories
Part 4:
Special requirements for frequency meters
© CEI 1984 Droits de reproduction réservés —
Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized
utilisée sous quelque forme que ce soit et par aucun procédé, in any form or by any means, electronic or mechanical,
électronique ou mécanique, y compris la photocopie et les including photocopying and microfilm, without permission
microfilms, sans l'accord écrit de l'éditeur. in writing from the publisher
Bureau central de la Commission Electrotechnique Internationale 3, we de Varembé Suisse
Genève
Commission Electrotechnique Internationale CODE PRIX
J
International Electrotechnical Commission PRICE CODE
IEC
MeniAYHapoAHasi 3fleKTpoTexHH4eCHaR HOMHCCHA
Pour prix, voir catalogue en vigueur
•
For price, see current catalogue
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SIST EN 60051-4:1995
51-4 © IEC 1984 — 3 —
CONTENTS
Page
5
FOREWORD
5
PREFACE
Clause
1. Scope 7
7
2. Definitions
3. Description, classification and compliance 7
4. Reference conditions and intrinsic errors 7
5. Nominal range of use and va riations 9
11
Further electrical and mechanical requirements 6.
15
7. Constructional requirements
15
8. Information, general markings and symbols
15
9. Markings and symbols for terminals
17
10. Tests to prove compliance with this standard
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SIST EN 60051-4:1995
51-4 IEC 1984 — 5 —
INTERNATIONAL ELECTROTECHNICAL COMMISSION
DIRECT ACTING INDICATING ANALOGUE ELECTRICAL MEASURING
INSTRUMENTS AND THEIR ACCESSORIES
Part 4: Special requirements for frequency meters
FOREWORD
I) The formal decisions or agreements of the IEC on technical matters, prepared by Technical Committees on which all the National
Committees having a special interest therein are represented, express, as nearly as possible, an inte rnational consensus of opinion
on the subjects dealt with.
ational use and they are accepted by the National Committees in that
2) They have the form of recommendations for inte rn
sense.
3) In order to promote inte rnational unification, the IEC expresses the wish that all National Committees should adopt the text of
the IEC recommendation for their national rules in so far as national conditions will permit. Any divergence between the I E C
recommendation and the corresponding national rules should, as far as possible, be clearly indicated in the latter.
PREFACE
This standard has been prepared by I EC Technical Committee No. 85: Measuring Equipment for Basic Electrical Quantities
(former Sub-Committee 13B: Electrical Measuring Instruments).
This fourth edition replaces the third edition of I EC Publication 51.
This standard constitutes Part 4.
The general layout for the revised Publication 51 is as follows:
rts.
Pa 1: Definitions and General Requirements Common to all Pa
rt
Part 2: Special Requirements for Ammeters and Voltmeters.
Part 3: Special Requirements for Wattmeters and Varmeters.
Part 4: Special Requirements for Frequency Meters.
Part 5: Special requirements for Phase Meters, Power Factor Meters and Synchroscopes.
Part 6: Special Requirements for Ohmmeters (Impedance Meters) and Conductance Meters.
Part 7: Special Requirements for Multi-function Instruments.
Part 8: Spe
...