ESA has Identified Increasing Safety Concern Surrounding Meter Base Installations

ESA

April 18, 2025

ESA and EFC are raising awareness on an increasing safety concern the ESA has identified surrounding meter base installations.

ESA identified an increase of installed meter bases where the neutral block is isolated from the enclosure. According to OESC Rule 10-210 a bonding conductor must be installed between the meter base and the consumer service box as per OESC Rule 10-210 Meter bases with an isolated neutral to the enclosure are marked to indicate they are permanently isolated. Installing these meter bases without a bonding conductor pose a potential electrical safety hazard.

Base

Meter bases are certified to the product standard (CSA C22.2 NO. 115:20 – Metermounting devices). Recently, there was a change to traditional Meter bases with the introduction of Meter Bases with isolated neutral as these types of meters satisfy OESC Rule 10-210. While the standard mandates clear markings to distinguish the different types, many installers, including licensed electrical contractors, continue to install them incorrectly.

ESA and Electro-Federation Canada (EFC) are collaborating to examine product labeling requirements in the standard (CSA 22.2 N0.115) to identify potential opportunities for enhancing the visibility of product labels.

The ESA and EFC would like to increase the awareness and education of installers and distributors with the following resources:

  • Published Bulletin 10-15*
  • Issued a Toolbox Talks document on meter base grounding & bonding on the supply side of the service box to the Electrical Contractor community (January 2024)
  • Released a podcast that discusses the changes in meter base standards (June 2024)
  • Issued a Distributor Bulletin with similar information to the Electrical Distributors (July 2024). ESA and Electro-Federation Canada is looking for forward continuing collaboration with the electrical community on this issue, ensuring safe and proper meter base installation.

You can find the full letter HERE

base

Related Articles

Latest Articles

Changing Scene

  • EB Horsman & Son Expansion in Alberta: New Grande Prairie Branch Opening 2026

    EB Horsman & Son Expansion in Alberta: New Grande Prairie Branch Opening 2026

    May 25, 2026 EB Horsman & Son have announced they are expanding in Northern Alberta with a new branch coming to Grande Prairie. As one of the fastest‑growing cities in the province and a major hub for the oil and gas, forestry, and agriculture sectors, Grande Prairie is a natural fit for their continued growth Read More…

  • Milwaukee Tool Officially Opens Service Hub in Georgina, Ontario

    Milwaukee Tool Officially Opens Service Hub in Georgina, Ontario

    May 21, 2026 Milwaukee Tool today celebrated the official ribbon-cutting ceremony of its first-ever Service Hub in Canada, located at 1 Logistics Ct. in Georgina’s Keswick Business Park. The milestone event was attended by Milwaukee Tool leadership, Town of Georgina officials and local community stakeholders, marking a significant step in Milwaukee Tool’s continued investment in Read More…

  • Cascadia Sales Representing Eaton in BC

    Cascadia Sales Representing Eaton in BC

    May 21, 2026 Cascadia Sales are thrilled to announce that effective May 11, 2026, they will officially be representing an expanded portfolio of Eaton brands across British Columbia. “Adding Crouse-Hinds, B-Line, Bussmann, and Cooper Power series to our lineup allows us to provide even more comprehensive electrical solutions to our BC partners,” the company said Read More…

  • Nedco Opens New Kelowna Branch

    Nedco Opens New Kelowna Branch

    May 21, 2026 In a recent announcement from Nedco, the company celebrated the Grand Opening of the new Kelowna branch on Friday, May 8, 2026. Nedco invited attendees to explore the new 11,000 sq. ft. facility designed to conveniently serve Okanagan customers. The tour of the new facility took place from 11:00 AM to 2:00 Read More…