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BS EN / IEC 60947-1 General Rules Low-voltage switchgear and control gear

BS EN / IEC 60947-1 General Rules Low-voltage switchgear and control gear

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IEC 60947-1 is the standard which lays the rules applicable to low voltage switchgear and controlgear. The purpose of this standard is to coordinate the rules and regulations in order to obtain uniformity of requirements and tests. The product standard forming the series of IEC standard covering low voltage switchgear and control gear are:

 

S.NoStandradtitle
1IEC 60947-1Low voltage switchgear and controlgear
IEC 60947-2Circuit Breaker
2IEC 60947-3Switches, disconnectors, switch-disconnectors and fuse-combination units
3IEC 60947-4Contactors and motor starter
4IEC 60947-5Control circuit devices and switching elements
6 IEC 60947-6Multiple function equipment
8 IEC 60947-7Ancillary equipment
9 IEC 60947-8Control units for build in thermal protection (PTC ) for rotating electric machine.

 

 This standard concerns, when required by the relevant product standard, to switchgear and controlgear herein after referred to as “equipment” and intended to be connected to circuits, the rated voltage of which does not exceed 1000 V a.c. or 1500 V d.c.

It does not relate to low-voltage switchgear and controlgear assemblies which are dealt with in IEC 60439.

List of test performed for this standard are :

 

Type tests :
1.Constructional Requirements
2Temperature rise test
3Dielectric properties
4Making and breaking capacities
5Short circuit making and breaking capacities
6Operating limits
7Operating performance
8Degree of protection of enclosed equipment
9Test for EMC
Routine Tests
1Functional tests
2Dielectric tests
Sampling tests
1Functional tests
2Dielectric tests

 

 

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