What is the status of UL 3741, and are there any Certified (Listed) PV hazard control systems?

As photovoltaic power (PV) systems become increasingly common due to an increasing awareness of climate change issues, including severe storms and very large forest fires, both new and seasoned code enforcement people sometimes get buried in a forest of trees dealing with code minutia and issues.

With the end of the year upon us, it’s a fitting time to reflect on the state of safety in our industry, to evaluate where we are today, and consider what more we need to do in the new year ahead.

Let’s first acknowledge that this new defined terminology and relaxations allowed by Section 8 of the Canadian Electrical Code, Part I (CE Code)

Today we are dependent upon technology in most aspects of our lives, and it is changing, and we must change with it.

With an invigorated national focus to upgrade, enhance, and construct broadband infrastructure to meet an insatiable consumer appetite, America’s telecommunication workers will play a vital, challenging, and inherently hazardous role.

This article will discuss the addition of energy storage system requirements in Section 64, starting with changes to the name and scope of the section to include energy production in addition to renewable energy and energy storage systems.

Electrical equipment intended for potentially explosive atmospheres (or hazardous locations), is evaluated to stringent requirements in accordance with the NEC, local regulations, and/or harmonized standards such as the IEC 60079 series standards.

This is the third of a series of articles detailing significant changes for the 2021 Canadian Electrical Code Part I (CE Code).