It’s important to understand how products and equipment are tested and certified, as inspectors regularly encounter installed products bearing a wide range of certification marks in day-to-day work.
A PV system is relatively simple in concept, but after the NEC requirements are added for safety, the execution of the system requires considerable attention to detail. There are also significant numbers of electrical inspectors that are new to the field of inspecting PV systems.
Fire stop requirements have become a source of concern lately among the stakeholders of electrical safety (among the electrical designers, contractors, and electrical safety regulators).
The 2020 National Electrical Code© (NEC©) contains many changes regarding the use and limitations of reconditioned or rebuilt equipment. How does UL identify if the equipment is Certified (Listed) as reconditioned or rebuilt?
To play this code quiz game on dwelling unit requirements, you need a sharp eye, a quick mind, and a copy of the 2020 National Electrical Code (NEC).
It’s often said that our home is our castle and haven of safety. Whether it is a single-family dwelling, an apartment, or a high-rise penthouse, we naturally expect to feel safe when we come home, turn on a light, and begin preparing our evening meal. Unfortunately, the electrical wiring or electrical service panel within these dwellings can sometimes be one of the most significant fire hazards in our home.
IAEI is embarking on a student membership campaign that will be rolling out over the next several months.
Although changes to the 2020 National Electrical Code for PV systems have been covered in previous issues, this article compares the 2017 requirements with the 2020 requirements and determines how clarifications have been made.
Some installers of electrical equipment have a bit of difficulty in differentiating ground fault circuit interrupters and ground-fault protection. And what is the difference between a typical overcurrent protective device and a ground-fault circuit interrupter?
I have seen Listed LED tube lamps that incorporate a battery backup. Can they be used as emergency lighting or to retrofit a fluorescent or LED luminaire to convert it to an LED emergency luminaire?