Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC - Equipment for testing, measuring or monitoring of protective measures - Part 11: Effectiveness of residual current monitors (RCM) in TT, TN and IT systems (IEC 61557-11:2020)
This part of IEC 61557 specifies the requirements for test equipment applied to the testing of
the effectiveness of residual current monitors (RCM) that are already installed in distribution
systems.
This test equipment can be used in any kind of network, such as a TN, TT or IT system. The
test equipment can also be used for testing directionally discriminating residual current monitors
(RCM) in IT systems.
It is not the purpose of this document to verify the residual current monitors (RCM) according
to their product standards.
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ:
CYS EN IEC 61557-11:2022
This part of IEC 61557 specifies the requirements for test equipment applied to the testing of
the effectiveness of residual current monitors (RCM) that are already installed in distribution
systems.
This test equipment can be used in any kind of network, such as a TN, TT or IT system. The
test equipment can also be used for testing directionally discriminating residual current monitors
(RCM) in IT systems.
It is not the purpose of this document to verify the residual current monitors (RCM) according
to their product standards.
