CEI EN IEC 61557-3:2023
Current
The latest, up-to-date edition.
Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. - Equipment for testing, measuring or monitoring of protective measures Part 3: Loop impedance
Hardcopy , PDF
Italian
01-04-2023
This standard specifies the requirements applicable to equipment for measuring the ring impedance between a phase conductor and the protective conductor, or between a phase conductor and the neutral conductor or between two phase conductors, using the voltage drop that occurs when the circuit under test is connected to a load.
Important note : Users cannot be edited or removed once added to your Multi user PDF.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.