Which of the following is not considered one of the three main independent testing laboratories for electrical lighting fixtures?
A) National Electrical Manufacturers Association
B) Underwriters Laboratories
C) Canadian Standards Association
D) Electrical Testing Laboratories

Question

Quizplus · Accepted Answer

National Electrical Manufacturers Association is a trade association for electrical equipment manufacturers, not an independent testing laboratory for electrical lighting fixtures. The other options, Underwriters Laboratories, Canadian Standards Association, and Electrical Testing Laboratories, are all considered main independent testing laboratories for electrical lighting fixtures.

Which of the Following Is Not Considered One of the Three