Ugly’s manuals are time-tested technician approved. Every electrician should have an Ugly’s manual with them on every job site they’re on, let’s talk about some examples as to why.
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Ugly’s is an electrical field-reference book that every electrician should have on their jobs. It has so many useful diagrams, schematics, code articles, terms, math and much more. Rather than lugging around a huge 800-page codebook around with you everywhere, you can keep your Ugly’s book in your tool pouch or in your pocket when you’re on job sites.
Some examples of where you’d use Ugly’s are:
SIZING MOTOR CONDUCTORS
You can use the FLC charts in the NEC, or just pull out your Ugly’s manual. Ugly’s has the FLC charts on single-pages back to back and if you tab the book like I do, they’re easily accessible. Say we have a 208v 3-phase 10-horsepower motor on a job, and we need to figure out the current draw so we can decide what conductors to run to it. We’d open up the 3-phase FLC chart, look up 10HP, move over to the 208v column and find that this motor will draw 30.8-amps. Now we have our current and can start to figure out other factors that the motor may have to size the conductors or overcurrent-protection device.
SIZING EQUIPMENT GROUNDING CONDUCTORS
We can use Ugly’s to size EGC’s as well. We’d simply open the manual to the page labeled “Minimum Size Equipment Grounding Conductors For Grounding Raceway and Equipment.” If we have a 100-amp breaker ahead of the piece of equipment, we look at the column to the left and choose 100-amps. Then we move over to the Copper column and see that this piece of equipment should have a #8 grounding conductor run to it.
CONTINUE READING FULL ARTICLE AT: https://www.electricianu.com/podcast/episode-35-why-electricians-need-uglys-a-mini-electrical-library-in-your-pocket
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