Portable residual current devices (PRCDs) without integral overcurrent protection for household and similar use
This second edition cancels and replaces the first edition published in 1997 and its Amendment 1:1998. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) The content of the document was revised and aligned with IEC 60755 (group safety publication for residual current devices) and standard library blocks and modules.
b) Introduction of classification 4.3 According to behaviour after opening automatically in case of failure of the line voltage.
c) New requirements and tests were added to cover the introduced protection function against shock hazard:
- Verification of correct performance in the case of missing protective conductor.
- Verification of correct performance in the case of hazardous live protective conductor.
- Verification of correct performance in the case of loss of protective conductor.
- Verification of behaviour in the case of external fault current in the protective conductor.
d) Clearances/creepage distances revised and modified in alignment with IEC 62752 (IC-CPD).
e) Revision of values for minimum operating voltages.
f) Introduction of requirements and test for ambient air temperature between -25 °C and +40 °C.
g) Test of dielectric properties revised and aligned with standard library blocks and modules.
h) Relevant clauses aligned with IEC 62752 (IC-CPD); IC-CPD is a product standard describing similar product/features.
i) All annexes revised and adapted to content of main document.