NEC Changes Part 3: Use and Identification of Grounded Conductors

National Electric Code, Article 200 – Use and Identification of Grounded Conductors Ahhh, the often ill-referred-to grounded conductor. People often incorrectly refer to these conductors as neutrals, commons, “the white wire,” and a host of other trade slang terms. To clear the mud, Article 200 defines grounded conductors as “a system or circuit conductor that […]

ASTM Updates Home Laundering Standard for AR and FR Clothing

ASTM F2757 – 20 Standard Guide for Home Laundering Care and Maintenance of Flame-Resistant or Arc-Rated Clothing This standard has been updated with more accurate terminology (“arc rating” has replaced the older term “arc resistant”) and more guidance on laundering.  This standard is useful for referencing to guidance to employees especially in absence of manufacturer’s […]

NEC Changes Part 2: Space in Electrical Rooms and Panic Hardware

Two significant changes occurred in the 2020 National Electrical Code. They revolve around required space for entrance and egress, as well as requirements for panic door hardware.   We will discuss both of these changes, located in Article 110.26, Spaces About Electrical Equipment.  Entrance and Egress Requirements – 110.26(C)(2) When the electrical room includes “large […]

NEW CDC Guidelines on Disinfecting Respirators

We do not expect the CDC to issue guidelines on arc flash PPE. But most manufacturers provide some guidance now.  Most of the guidance states not to share PPE without laundering. We have been fielding questions and trying to provide guidance on the different proposed methods people are wanting to use.  We cannot guarantee the […]

Cleaning and Using Hand Sanitizers on ASTM D120 Rubber Insulating Gloves (VR Gloves)

Background: Rubber insulating gloves, also called VR Gloves (voltage rated gloves) or RIGS (Rubber Insulated Gloves), are critical to shock protection which is the most common fatal hazard of electrical work.  They are typically made of a highly refined natural or synthetic latex rubber and are either solvent dipped or water solution dipped.  The solvent […]