Author: Al Havens
Al Havens
Al Havens
About Author:

Al Havens brings more than 40 years of electrical safety experience to the classroom, 26 as Senior Electrical Engineer for U.S. Gypsum. Read more about Al.

by , on June 13, 2016
red background with burning question
Q: Is a vented hard hat acceptable for operators when they operate a circuit breaker or disconnect? A: NFPA’s 70E Standard for Electrical Safety in the Workplace® views the hardhat, Class G & E specifically, as shock protection. The NFPA 70E Standard assumes a person will be wearing that type of hardhat when dressing in arc-rated...
by , on May 17, 2016
red background with burning question
Question: Does removing the source and de-energizing the conductors remove the need for PPE? According to NFPA 70E 120.2(A), “All electrical circuit conductors and …parts shall be considered energized until the source(s) of energy is (are) removed, at which time they shall be considered de-energized.” Table130.7(C)(15)(A)(a) PPE is required to work on “energized” conductors. For example:...