How To Look At A House
McGarry and Madsen's home inspection blog for buyers of
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Is the latest edition of the National Electrical Code (NEC) the standard used for the electrical system of new homes?
Saturday, June 16, 2018
New Editions Of The NEC Are Not Immediately Adopted
Not necessarily. The NEC has been updated every three years since it originated back in 1897, but the code does not automatically become a national standard. Each new edition must be adopted by the state or local jurisdiction, and some of them take a few years to move up.
As of early 2018, for example, the 2008 NEC was still effective in five states, and four other states were continuing to use the 2011 edition. Some states have their own electrical code, which is based on a particular edition of the NEC, but with amendments. You can do a Google search for “NEC adoption maps” to check the current status of your state. Also, a local jurisdiction may choose not to enforce certain citations in the code.
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Here’s links to a collection of our other blog posts about ELECTRICAL WIRING:
• Which house appliances need a dedicated electrical circuit?
• Can a short circuit cause a high electric bill?
• What is the maximum spacing requirement for securing NM-cable (nonmetallic-sheathed cable)?
• Is it alright to just put wire nuts on the end of unused or abandoned NM-cable or wiring?
• What causes copper wires to turn green or black in an electric panel?
• What are typical aluminum service entrance wire/cable sizes for the electrical service to a house?
• Why is it unsafe to bond neutral and ground wiring at subpanels?
• Should I get a lightning rod system to protect my house?
• Why is a strain relief clamp necessary for the cord connection to some electric appliances?
• Does a wire nut connection need to be wrapped with electrical tape?
• What is the minimum clearance of overhead electric service drop wires above a house roof?
• What are the requirements for NM-cables entering an electric panel box?
• What is the color code for NM cable (Romex®) sheathing?
• Why is undersize electric wiring in a house dangerous?
• What causes flickering or blinking lights in a house?
• Why are old electrical components not always "grandfathered" as acceptable by home inspectors?
• How can I find out the size of the electric service to a house?
• Can old electrical wiring go bad inside a wall?
• What is an open electrical splice?
• What are the most common electrical defects found in a home inspection?
• What is the life expectancy of electrical wiring in a house?
• What is an "open junction box"?
• How dangerous is old electrical wiring?
• I heard that aluminum wiring is bad. How do you check for aluminum wiring?
Visit our ELECTRICAL page for other related blog posts on this subject, or go to the INDEX for a complete listing of all our articles.
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