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Dormer Ridge Board or Beam

Francis..... I did understand that the photo in your OP was not from your actual job, but rather an approx. look-alike. I do need to see the real plans to start to comment meaningfully, rather than in generalities, I won’t normally do engineering over the phone or on a forum. With either you or a…
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Dormer Ridge Board or Beam

Francis..... I did understand that the photo in your OP was not from your actual job, but rather an approx. look-alike. I do need to see the real plans to start to comment meaningfully, rather than in generalities, I won’t normally do engineering over the phone or on a forum. With either you or a…
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Grounding and Bonding Blog

Welcome to the Grounding and Bonding Blog. For each entry, I will add a piece to the Grounding and Bonding pie until it is complete. All code references will be based on the NFPA 70 - 2008 edition and NFPA 780 - 2008 edition, where applicable. Here are the goals of the blog: 1. I…
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Storable Pool Installations

Storable Pool Installations The installation of electrical equipment and wiring to above ground storable pools shall meet the requirements of Parts I and III, Article 680 of the National Electrical Code and per the manufacturer’s instructions provided with the pool equipment. Above Ground pools shall not be located within 10 horizontal feet from any overhead…
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Introduction to the National Electrical Code

The NFPA 70, National Electrical Code (NEC) was developed over a century ago and less than 20 years after Thomas Edison patented the first commercially successful incandescent lamp. Today, the National Electrical Code is the most widely adopted electrical standard in the United States and in many other countries as well. The National Electrical Code…
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Expansion Fittings for PVC Raceways

Expansion Fittings for Rigid NonMetallic Conduit Rigid NonMetallic Conduit, commonly referred to as PVC, will expand and contract over its length as the ambient temperature around the installation fluctuates. RNC has thermal expansion characteristics three times that of aluminum and six times higher than steel. The requirement for expansion fittings can be found in Section…
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