CENELEC

 

EUROPEAN COMMITTEE FOR ELECTROTECHNICAL STANDARDISATION

TECHNICAL COMMISSION 23E: CIRCUIT-BREAKERS AND SIMILAR EQUIPMENT

FOR HOUSEHOLD USE

Automatic reclosing devices for circuit breakers-RCBOs-RCCBs for household and similar uses (ARDs)

Automatic reclosing devices for circuit breakers-RCBOs-RCCBs for household and similar uses (ARDs)

 

 

CONTENTS

1 Scope .............................................................................................................................. 7

2 Normative references ....................................................................................................... 8

3 Definitions ...................................................................................................................... 10

4 Classification ................................................................................................................. 13

4.1 According to the method of construction ............................................................... 13

4.1.1 ARD assembled in factory by the manufacturer; ........................................ 13

4.1.2 ARD assembled on site. ............................................................................ 13

4.2 According to the MPD ........................................................................................... 13

4.2.1 ARD for circuit breakers; ........................................................................... 13

4.2.2 ARD for RCBOs; ....................................................................................... 13

4.2.3 ARD for RCCBs. ....................................................................................... 13

4.3 According to the type of assessment means ......................................................... 13

4.3.1 ARD without assessment means (See Annex E); ....................................... 13

4.3.2 ARD with assessment means: ................................................................... 13

4.3.2.1 ARD with means of assessment of the prospective residual current. ....................................................................................... 13

4.3.2.2 ARD with means of assessment of the prospective line current... 13

4.4 According to the safety means during the assessment of the prospective residual current .................................................................................................................. 14

4.4.1 ARD with assessment means operating by using a method based on the limitation of the test voltage; ..................................................................... 14

4.4.2 ARD with assessment means operating by using a method based on the limitation of the test current. ...................................................................... 14

4.5 According to the range of ambient air temperature (only for ARD according to 4.2.2 and 4.2.3) ............................................................................................................. 14

4.5.1 ARD for use at ambient air temperatures between