Welcome to another issue of JADE Learning's email newsletter. In this issue we have news from the Texas Department of Licensing and Regulation, a side-by-side comparison of several key sections from the 2005 and 2008 NEC, important changes in the 2008 NEC, and some brain teasers and optical illusions.
Thanks again for selecting JADE Learning as your continuing education provider. Please don't hesitate to contact us at firstname.lastname@example.org if you have an experience, story, or installation tip you would like to share with us and the Texas community of electrical professionals.
David Burtt, JADE Learning.
Bonding Gas Piping
Section 250.104(B) requires gas piping to be bonded, "if it is likely to become energized." How to bond the gas pipe, where to bond it, when to bond it, and the size of the bonding jumper are all important questions.
How is the gas pipe most "likely to become energized?" -- from a branch circuit, or from the service? The size of the bonding jumper is different depending on what your answer is.
What if the manufacturer's instructions call for a larger size bonding jumper than what the 2008 NEC requires?
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The 2005 NEC and 2008 NEC, Side by Side
2005 NEC: Arc-Fault Circuit-Interrupter Protection required in dwelling unit bedrooms. vs. 2008 NEC: Combination Type Arc-Fault Circuit-Interrupter Protection required throughout the dwelling unit (except in kitchens, bathrooms, garages and outdoors).
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The 2008 NEC will officially be adopted by the state of Texas on September 1, 2008.
Need to check your continuing education hours?
Check your hours.
JADE's Top Code Changes
310.15 (B)(2)(c) Conduits Exposed to Sunlight on Rooftops.
The temperature inside conduit installed on rooftops is considerably higher than the ambient air surrounding the building; the closer the conduit is to the roof, the higher the temperature. This has caused problems for some rooftop raceway installations.
Try the brain teasers and check out the optical illusions..
A man is sitting in a pub feeling rather poor. He sees the man next to him pull a wad of hundred dollar bills out of his wallet.
He turns to the rich man and says to him,
"I have an amazing talent: I know almost every song that has ever existed."
The rich man laughs.
The poor man says,"I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady's name of your choice in it."
The rich man laughs again and says, "Ok how about my daughters name, Joanna Armstrong-Miller."
The rich man goes home poor. The poor man goes home rich.
What did the poor man sing?
Click here to find out...