Safety of Power Transformers, Power Supply Units and Similar Devices - Part 2-13: Particular Requirements for Auto-Transformers for General Use

Designation Number:
CAN/CSA - E61558-2-13
Standard Type:
National Standard of Canada - Domestic
Standard Development Activity:
New Edition
Status:
Proceeding to development
SDO Comment Period Start Date:
SDO Comment Period End Date:
Posted On:

Scope:

This International Standard deals with all aspects of safety such as electrical, thermal and mechanical.

This part 2-13 of IEC 61558 applies to stationary or portable, single-phase or polyphase, aircooled (natural or forced), independent or associated auto-transformers, having a rated supply voltage not exceeding 1 000 V a.c., a rated frequency not exceeding 500 Hz.

The core power does not exceed: - 1 kVA for single-phase auto-transformers; - 5 kVA for polyphase auto-transformers. The rated output does not exceed: - 20 kVA for single-phase auto-transformers; - 100 kVA for polyphase auto-transformers.

This standard is also applicable to auto-transformers having a core power up to 40 kVA, however such transformers are considered as special transformers and are subjected to an agreement between the purchaser and the supplier. Such special auto-transformers have no limitation for the rated output.

The no-load output voltage and the rated output voltage do not exceed 1 000 V a.c. or 1 415 V ripple-free d.c.

For independent auto-transformers, the no-load output voltage and the rated output voltage are not less than 50 V a.c. or 120 V ripple free d.c.

This standard is applicable to transformers where no insulation between circuits is required by the installation rules or by the equipment specifications.
 

Project need:

To ensure Canadian stakeholders have access to the latest international requirements

Note: The information provided above was obtained by the Standards Council of Canada (SCC) and is provided as part of a centralized, transparent notification system for new standards development. The system allows SCC-accredited Standards Development Organizations (SDOs), and members of the public, to be informed of new work in Canadian standards development, and allows SCC-accredited SDOs to identify and resolve potential duplication of standards and effort.

Individual SDOs are responsible for the content and accuracy of the information presented here. The text is presented in the language in which it was provided to SCC.