According to the NFPA 70E, a “Qualified Person" is one who is trained and knowledgeable of the construction and operation of the equipment or the...
I am installing a 480 volt feeder that requires 4-600 MCM per phase. At the top of our MCC if I route through a aluminum plate can I route all A...
Just a quick question, Does a "non-contact" voltage detector qualify as the final test for "no-voltage" prior to working on, hopefully,...
Don't know if Im in the right place of the forum but here goes. Im working as a site M & E Eng. on a construction site and a question was raised...
1) Do Arc Flash precautions (PPE) apply when checking voltages with "non-contact" testers? 2) Are non-contact voltage testers safe for use in...
Have noticed with the new " LEAN" environment and the need to eliminate waste that safety seems to being pushed to the wayside . Have heard companys...
Hi all, Working on an arc fault study for a facility in Xcel Energy territory. I have asked the utility engineer for maximum and minimum values of...
Here is an interesting article about a fault and the failure to test conductors before re-energizing. You can read it here.
We have several areas in our facility where the use of mobil cranes is required to perform maintenance/construction. According to NFPA 70E Sect....
http://pittsburgh.cbslocal.com/2013/05/09/w-va-man-electrocuted-after-shooting-down-power-line-to-steal-copper/ This guy was a professional thief...
An office building where I work has several flush panelboards equipped with SWD-rated 20A circuit breakers that control the ceiling light fixtures....
Hello All, I am having a weird problem with a customer, and am looking to you for some support. Heres the deal. Wired a new house for this...
Hi, here is what I have, I am a system integrator who is building a 480VAC, UL508a control panel. I am suppling a Arc Flash Label (one that can be...
I have been assigned to set up a lunch and learn for NFPA70E training for a large group of people at a chemical refinery. Is there any companies out...
house has 70 percent aluminum wire and 30 percent copper that is romex don't know where all of the circuits go. its a big house with sheetrock...
I work in a wood manufacturing plant. I was telling our safety personnel that all our receptacles should be marked with their circuit numbers. She...
I was wondering what kind of gloves do you guys use for everyday use and what kind when working on energized panels upto 240V?
I am looking at a renovation of a 40 unit apartment building. The building is probably from the 1920's. It is slated for a major electrtical...
End of life on electrical equipment. Looking for some feedback, opinions or any help on the end of life of electrical equipment (power...
Hello all, I'm having trouble finding a solid answer to this question: When working in an industrial control panel 480V 3phase after powering down...
I recentely used my hand held GFCI Tester on a GFCI protected ciruit. The tester showed satisfactory wiring but the circuit did not trip when the...
Use this control to limit the display of threads to those newer than the specified time frame.
Allows you to choose the data by which the thread list will be sorted.
Order threads in...
Note: when sorting by date, 'descending order' will show the newest results first.
Forum Rules
