Author: Zarheer Jooma
Zarheer Jooma
Zarheer Jooma
About Author:

A registered Professional Electrical Engineer, Zarheer brings a unique perspective to the classroom having helped develop SANS 724—the South African National Standard for Protective Equipment against the Thermal Hazards of an Electrical Arc. Read more about Zarheer.

by , on January 31, 2019
Electrical Safety training can be difficult to implement. Complex rules from OSHA and NFPA 70E have to be incorporated into even more complex workplace roles and responsibilities (job descriptions). The aim of this short article is to simplify these requirements in an easy-to-digest manner. This is aimed at persons new to electrical safety. OSHA should...
by , on January 3, 2019
New IEEE 1584™ -2018 wording: “Possible but less likely” The IEEE standard 1584™ – 2002 Guide for Performing Arc-Flash Hazard Calculations stated, “Equipment below 240 V need not be considered unless it involves at least one 125 kVA or larger low impedance transformer in its immediate power supply.” The recently published IEEE standard 1584™ –...
by , on November 19, 2018
red background with burning question
Is there an OSHA standard that mandates extension cords cannot be plugged into each other? We had a client once comment: “I have been reading about plugging extension cords. I want to make sure when I go on one of our sites and say, ‘You can’t plug one cord into another’ that I can give...
by , on November 15, 2018
As more data centers emerge around the country, we are presented with more opportunities to learn lessons about arc flash. “An energy-intensive data center requires multiple high capacity sources to function. When there is a failure, the arc flash energies are also notably greater when compared to small industrial  networks.” So begins a recently published article...
by , on June 14, 2018
red background with burning question
Q: I hear about grounding and bonding being so important in my plant’s electrical system. I am not from an electrical background. Can you explain why this is significant? A: The importance of grounding and bonding involves worker safety, equipment safety (protective device operation), and lightning protection. In order to control anything, you will have...