IEC 60947-1 : 5.2

LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 1: GENERAL RULES

International Electrotechnical Committee

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FOREWORD
1 General
2 Definitions
3 Classification
4 Characteristics
5 Product information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
8 Tests
Annex A (informative) - Harmonisation of utilization
        categories for low-voltage switchgear and
        controlgear
Annex B (informative) - Suitability of the equipment when
        conditions for operation in service differ from
        the normal conditions
Annex C (normative) - Degrees of protection of enclosed
        equipment
Annex D (informative) - Examples of clamping units and
        relationship between clamping unit and connecting
        device
Annex E (informative) - Description of a method for adjusting
        the load circuit
Annex F (informative) - Determination of short-circuit
        power-factor or time-constant
Annex G (informative) - Measurement of creepage distances and
        clearances
Annex H (informative) - Correlation between the nominal voltage
        of the supply system and the rated impulse withstand
        voltage of equipment
Annex J (informative) - Items subject to agreement between
        manufacturer and user
Annex K (normative) - Procedure to determine reliability
        data for electromechanical devices used in
        functional safety applications
Annex L (normative) - Terminal marking and distinctive number
Annex M (normative) - Flammability test
Annex N (normative) - Requirements and tests for equipment with
        protective separation
Annex O (informative) - Environmentally-conscious design
Annex P (informative) - Terminal lugs for low voltage switchgear
        and controlgear connected to copper conductors
Annex Q (normative) - Special tests - Damp heat, salt mist,
        vibration and shock
Annex R (informative) - Application of the metal foil for
        dielectric testing on accessible parts during
        operation or adjustment
Annex S (normative) - Digital inputs and outputs
Annex T (normative) - Extended functions within electronic
        overload relays
Annex U (informative) - Examples of control circuit
        configurations
Annex V (informative) - Power management with switchgear
        and controlgear for electrical energy efficiency
Annex W (normative) - Procedure to establish material
        declaration
Bibliography

Abstract

Utilized when required by the relevant product standard, to low-voltage switchgear and controlgear hereinafter referred to as 'equipment' or 'device' and intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c. or 1500 V d.c.