CEI EN 60947-6-1/A1 PDF

Scope and object

Replace the existing first paragraph of this clause by the following new paragraph:

This part of IEC 60947 applies to transfer switching equipment (TSE) to be used in power systems for transferring a load supply between a normal and an alternate source with a supply interruption during transfer, the rated voltage of which does not exceed 1 000 V a.c. or 1 500 V d.c.

Replace in the second dash of the second paragraph "remote" by "remotely".

Renumber the existing note as "NOTE 1".

Delete, in the existing list, the existing items a) and b) under 1).

Add, at the end of the existing text, the following new notes:

NOTE 2 This standard covers also ATSE or RTSE which can be used for safety services as defined in IEC 60364-1 and for which the installation requirements are given by IEC 60364-5-56.

NOTE 3 Other ATSE requirements are under consideration such as closed transition TSE (make before break transfer operation).