ELECTRICITY METERING EQUIPMENT (AC) - GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - PART 31: PRODUCT SAFETY REQUIREMENTS AND TESTS
International Electrotechnical Committee
FOREWORD
INTRODUCTION
1 Scope and object
2 Normative references
3 Terms and definitions
4 Tests
5 Information and marking requirements
6 Protection against electrical shock
7 Protection against mechanical hazards
8 Resistance to mechanical stresses
9 Protection against spread of fire
10 Equipment temperature limits and resistance to heat
11 Protection against penetration of dust and water
12 Protection against liberated gases and substances
explosion and implosion - Batteries and battery charging
13 Components and sub-assemblies
14 Hazards resulting from application - Reasonably
foreseeable misuse
15 Risk assessment
Annex A (normative) - Measuring circuits for touch current
Annex B (informative) - Examples for insulation between parts
Annex C (informative) - Examples for direct connected meters
equipped with supply control and load control switches
Annex D (normative) - Test circuit diagram for the test of long
term overvoltage withstand
Annex E (normative) - Test circuit diagram for short current
test on the current circuit of direct connected meters
Annex F (informative) - Examples for voltage tests
Annex G (normative) - Additional a.c. voltage tests for
electromechanical meters
Annex H (normative) - Test equipment for cable flexion
and pull test
Annex I (informative) - Routine tests
Annex J (informative) - Examples of battery protection
Annex K (informative) - Rationale for specifying overvoltage
category III
Annex L (informative) - Overview of safety aspects covered
Annex M (informative) - Index of defined terms
Bibliography
Defines product safety requirements for equipment for electrical energy measurement and control.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 13 |
