Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - General requirements Ingestion-build-224916 The principal contractor’s temporary works

The principal contractor’s temporary works co-ordinator (PC's TWC) retains overall responsibility for the temporary works on the site

mobile phones

This International Standard also covers all tests

Why should you use BS 6891 - Gas installation pipework

PEM (proton exchange membrane) fuel cell technologies have shown remarkable progress such as lowering of platinum (Pt)loading

Electrical safety in low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Equipment for testing, measuring or monitoring of protective measures - General requirements Ingestion-build-224916 The principal contractor’s temporary works1 Scope This part of IEC 61557 specifies the general requirements for measuring and monitoring equipment for testing the electrical safety in low voltage distribution systems with nominal voltages up to 1 000 V a. c. and 1 500 V d. c. When measuring equipment or measuring installations involve measurement tasks of various measuring equipment covered by this series of standards, then the part of this series of standards relevant to each of the