Safety of Power Transformers, Power Supply Units and Similar - Part 2: Particular Requirements for Isolating Transformers for General Use (Adopted IEC 61558-2-4)

CSA Group
Standards Development Organisation:
Canadian Standards Association (operating as CSA Group)
Working Program:
View the CSA work program
Designation Number:
CAN/CSA - E61558-2-4
Standard Type:
National Standard of Canada - Adoption of International Standard
Standard Development Activity:
New Edition
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This part 2 of IEC 61558 applies to stationary or portable, single-phase or polyphase, air-cooled isolating transformers, associated or otherwise, having a rated supply voltage not exceeding 1000 V a.c. and rated frequency not exceeding 500 Hz, the rated output not exceeding: - 25 kVA for single-phase transformers; - 40 kVA for polyphase transformers.

This standard is also applicable to isolating transformers without limitation of the rated output, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier.

The no-load output voltage or the rated output voltage does not exceed 500 V a.c. or 708 V ripple-free d.c.
 

Project need:

To ensure Canadian stakeholders have access to the latest international requirements

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