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Testing Agencies & the Electrical Inspector

by Laura L. Hildreth and Chuck Mello The relationship between the electrical inspector and recognized testing laboratories and field evaluation bodies (FEBs), as recognized by...

What is Accreditation and How Does It Relate to Competence of...

Accreditation is the means by which an independent third party, an accreditation body, provides formal recognition that an organization is competent to carry out...

An Approved Degree of Detail

I  AM FORTUNATE that I work for an AHJ that allows me to express myself so freely. I can write just about whatever I...

CODE HUNTER — Listing, 2014 NEC

Questions To play this game, you need a sharp eye, a quick mind and a 2014 National Electrical Code book. (Fill-in-the-blank questions are looking for the...

Field Evaluations and the Development History for NFPA 790 and NFPA...

The history of field evaluations dates back to needs expressed by Authorities Having  Jurisdiction (AHJs) in the mid-1970s. At this time, several previously abandoned...

New UL Field Evaluation Mark

Question Why is UL introducing a new Field Evaluation Label? Answer The present UL Field Evaluated Product Label has been in use for more than 20 years...

UL’s New Enhanced Certification Mark

Question  I have seen that UL has developed a new certification mark. Can you tell me more about it? Are the current Listing and Classification marks still...

What is Behind the Genuine Mark?

Customers have expressed concerns about products entering the market that do not always comply with existing standards. We have prepared this document to address...

Field Evaluation of Uncertified or Modified Products

Section 110.2 of the National Electrical Code (NEC) establishes the requirement for installations and equipment to be approved and by definition, this means "acceptable...

Third-Party Electrical Testing – What Inspectors Should Know

If safe, reliable operation of a newly-installed electrical power system and related components is to be achieved, several key components are required: The power system...
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