SEL487
Electrical
- Feb 4, 2024
- 3
From the ESA
Dear Manufacturer:
The Electrical Safety Authority (ESA) has been dealing with pad-mounted gas insulated switchgears (GIS) for non-utility applications.
A few concerns have been identified: not meeting the requirements of CSA 22.2 No. 31 standard and the Ontario Electrical Safety Code (OESC) such as the use of a fault interrupter instead of a breaker or fuse as required in the standard and OESC Rule 36-204, and some configurations of GIS include a grounding switch that has a potential of unintentionally grounding the supply authority service conductors. Also, the equipment previously reviewed by ESA does not meet the requirements for service entrance.
As an interim solution until the equipment meets the applicable standards, ESA will accept pad-mounted GIS with criteria identified in the attached document.
ESA would like to work with the industry and the Standards Development Organization towards updating the standards and have approved products.
Please feel free to reach out if you have any further questions regarding this document.
And also
Dear Manufacturer:
To update our previous communication dated November 24, 2022, for service entrance applications, the Electrical Safety Authority (ESA) will consider accepting under a deviation request GIS equipment that is not approved for service entrance use up to May 1, 2025.
For non-service applications, ESA will consider accepting under a deviation request GIS equipment that incorporates fault interrupters up to May 1, 2025 as well.
Please see attached Ontario Electrical Safety Code (OESC) Bulletin 36-15-* that is scheduled to be published in May 2023.
Dear Manufacturer:
The Electrical Safety Authority (ESA) has been dealing with pad-mounted gas insulated switchgears (GIS) for non-utility applications.
A few concerns have been identified: not meeting the requirements of CSA 22.2 No. 31 standard and the Ontario Electrical Safety Code (OESC) such as the use of a fault interrupter instead of a breaker or fuse as required in the standard and OESC Rule 36-204, and some configurations of GIS include a grounding switch that has a potential of unintentionally grounding the supply authority service conductors. Also, the equipment previously reviewed by ESA does not meet the requirements for service entrance.
As an interim solution until the equipment meets the applicable standards, ESA will accept pad-mounted GIS with criteria identified in the attached document.
ESA would like to work with the industry and the Standards Development Organization towards updating the standards and have approved products.
Please feel free to reach out if you have any further questions regarding this document.
And also
Dear Manufacturer:
To update our previous communication dated November 24, 2022, for service entrance applications, the Electrical Safety Authority (ESA) will consider accepting under a deviation request GIS equipment that is not approved for service entrance use up to May 1, 2025.
For non-service applications, ESA will consider accepting under a deviation request GIS equipment that incorporates fault interrupters up to May 1, 2025 as well.
Please see attached Ontario Electrical Safety Code (OESC) Bulletin 36-15-* that is scheduled to be published in May 2023.
