Comments Feed

Working with Motors, Part 2 Commented on: 1 day ago (July 22, 2016)

I've read many times to stand to the right of the disconnect and use your left hand to operate the handle. I must take exception to this recommendation. This procedure may be fine for right-handed...

Tip of the Week: Take Proper Care of Your Test and Measurement Equipment Commented on: 4 weeks ago (June 22, 2016)

And always read the User/Owner Manual for each test instrument you own or use. It doesn't hurt (pun intended) to go back and read the manual again every year so you don't forget important points...

Overhead Service Conductors, Part 1 Commented on: 8 weeks ago (May 24, 2016)

As a corollary to the last paragraph; If you do not know what data, methods, and equations to use to determine if the span has adequate strength, then you are not qualified to make the...

Illustrated Catastrophes: Outrageous Service Situation Commented on: 9 weeks ago (May 17, 2016)

Well... at least the farmer was honest and realistic when he said it might be better to replace the panel.

Motor Wiring, Part 1 Commented on: 12 weeks ago (April 27, 2016)

I have to disagree with pre-twisting the conductors. As an engineer, I understand that the manufacturer's engineers designed a product to work a particular way. They then tested it to ensure...

Figure it Out: Keep Your Math Skills Sharp Commented on: 17 weeks ago (March 23, 2016)

All the multi-thousand dollar software packages I have used had a software disclaimer in their license agreement, you know the thing you clicked-through to install the software. It basically says...

What Happens When Nonmetallic Sheathed Cables Come in Contact with Spray-Foam Insulation? Commented on: 19 weeks ago (March 6, 2016)

I understand your concern. However, did you read the second page of the Washington State Chief Inspector's newsletter where it mentions the research performed by the University of Toronto, which...

Tip of the Week: The Basics of Chapter 6 in NFPA 70 (NEC) Commented on: 29 weeks ago (December 30, 2015)

Actually, all the equipment listed in the last paragraph could be considered part of a group; Miscellanious, or Not Covered Elsewhere.

Electrical Troubleshooting Quiz - November 10, 2015 Commented on: 34 weeks ago (November 21, 2015)

While harmonics associated with office equipment can be a problem, having breakers trip only in the winter is a symptom of overloaded circuits due to small space heaters under the desks. I have...

Power Quality Improvements Do Save Energy Commented on: 46 weeks ago (September 2, 2015)

The NEC is all about safety from fire and electric shock as indicated in Section 90.1(B), "...contains provisions that are considered necessary for safety." Power quality issues may cause problems...

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