Guidelines to Evaluating Unlisted Products

The American Council for Electrical Safety (ACES) is a collaboration that was formed by a variety of regulators responsible for ensuring the safety of...

Engineering Series Rating: Is It Practical?

The 2005 National Electrical Code introduces a change regarding series ratings for circuit breakers that deserves careful review before applying an engineered series rating....

Other than the typical fire and shock hazards, are there other...

Question: Motor-operated door systems Other than the typical fire and shock hazards, are there other safety concerns with motor-operated door systems that are commonly used...

New Short-Circuit Current Rating Requirements Facilitate Compliance with 110.10

Well, another three years has passed and with it another revision cycle of theNEChas been completed. As so often happens during code cycles, several...

Certification of Factory Automation Equipment

A new factory is being constructed or an old factory is being updated in your jurisdiction. The owners of the facility have invested millions...

What is the new process for performing a field evaluation?

Question: UL field evaluations I’ve heard UL has revamped its field evaluation program. What is the new process for performing a field evaluation?   Answer UL’s Field Evaluated...

What are the types of equipment that can be subject to...

Question: Equipment and field evaluation What are the types of equipment that can be subject to a field evaluation?   Answer First, it is important to understand why...

Improving Service in the Testing and Certification Industry

The testing and certification industry today faces an urgent challenge from its customers: make the product approval process more convenient and less time consuming,...

Can I get an email update from UL when new information...

Question: Email updates? Can I get an email update from UL when new information is added to UL’s Regulators page or other UL information is...

New Products Don’t Grow on Trees

Have you run into a new electrical product on the job site lately? Have you seen something new and wondered where it came from?...