A Word from Jake – Page 25 – Jake Leahy's Electrical Code Connection

Available Fault Current

Post author:Jake
Post published:May 31, 2014
Post category:Code Change of the Week
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In the 2011 NEC article 110.24 has a few changes that need to be be addressed. Under 110.24(A) Field Marking, service equipment in other than a dwelling unit shall be field marked with the maximum available fault current. This is something you will have to get with the utility or the engineer for the project to be able to calculate. The field markings will have to be able to with stand the elements when a attached to a disconnect or panelboard out in the field. Section 110.24(B) Modifications will make you as the installer responsible to attach newly calculated fault current information to the equipment based on modification made to the circuits. All information provided will have to with stand the elements in which they are installed so a Sharpie or Magic Marker is not going to meet the requirements of this new change because they don’t last out in the weather. Till next time work safe…

Panelboard identification 408.4(B)

Post author:Jake
Post published:May 6, 2014
Post category:Code Change of the Week
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For the 2011 edition of the NEC on page 275 of the softbound Code book, they have added the requirement for field identification of all switchboards and panelboards, to indicate where the power to that equipment originates. It will be easier to mark these panel and switch boards when they are installed. Trying to find the source 5 or 10 years down the road has always been a time consuming project that only takes minutes when first installed. A great addition to the code, will make life as an electrician easier in the future. Till next time work safe and be safe.

Jake

So you can see it 2011 GFCI new requirements

Post author:Jake
Post published:April 13, 2014
Post category:Code Change of the Week
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New GFCI requirements for 2011

Post author:Jake
Post published:April 13, 2014
Post category:Code Change of the Week
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The yellow highlighted material below is a new Code change for 2011. GFCI protection has been expanded to cover other areas that have been shown to have problems.

Till next time work safe and be safe.

Jake

PVC Expansion

Post author:Jake
Post published:April 6, 2014
Post category:News
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Ever wonder why the PVC conduit run on the side of a building is all wavy and looks awful, it’s because the installer probably forgot to include an expansion fitting. Per NEC section 352.44 PVC conduit requires an expansion fitting where the PVC pipe is expected to move 1/4″ or more. Here in So. Florida the PVC is expected to move approximately 2.64″ based on our average temperature range.

See the attached link on how to install one of these fittings. http://0323c7c.netsolhost.com/docs/Conduit%20expansion%20fittings.pdf

Till next time.

Be safe, work safe

Jake

Ever wonder what all those numbers on the box mean

Post author:Jake
Post published:March 29, 2014
Post category:News
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This week see the link from Square D to explain what all the numbers mean on the box when we buy a disconnect or panel etc., etc..

http://static.schneider-electric.us/docs/Electrical%20Distribution/Safety%20Switches/Heavy%20Duty%20Safety%20Switches/3100BR9801.pdf

Click on the following link or paste it into your search bar, and check out Page 6 for what the numbers and letters mean on the side of the box and

on the inside label of the switch, disconnect or panel.

Till next time

Work safe, be safe

Jake

TERMINATIONS OF CONDUCTORS 110.14

Post author:Jake
Post published:March 23, 2014
Post category:Electrical Safety
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I get a lot of questions on how Table 310.16 work with the three temperature columns, and the terminations of these conductors. Square D – Schneider Electric has a technical guide to how these sections are applied to the terminations of conductors. See the attached link for information on this very often misunderstood section of the Code. Jim Pauley the author has been a great asset to the electrical industry for over 25 years. He often takes on the most controversial sections of the Code and explains them in a way that even a novice in our trade would understand.

Till next time work safe, be safe.

http://static.schneider-electric.us/docs/Power%20Management/0110DB9901.pdf

Send in your questions , we will find an answer.

Jake

Required Outlets

Post author:Jake
Post published:March 8, 2014
Post category:Code Change of the Week
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With the impending adoption of the 2011 NEC I will try to pick out a few changes that will affect the way we wire houses. The first is minor change but it could have your job fail inspection. 210.52 (A)(4) again is a minor change but could end you fail an inspection.

As you can see in the picture the outlet on the counter was used to cover the 2’ wall space next to the sliding door. Under the 2011 NEC you will no longer be able to use the counter outlet to cover the wall space

Continuing Education Classes

Post author:Jake
Post published:February 23, 2014
Post category:News
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Classes will be held this summer as usual during the months of June and July 2014.

State of Florida Grandfathering of ER contractors

Post author:Jake
Post published:July 14, 2013
Post category:News
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Starting July 1st, 2013 the state of Florida is now grandfathering Registered Contractors (County Licensed) into Certified Contractors (State Licensed). This will be going on until November 2015. Further information and application can be obtained at the Florida’s DBPR web site. This is a great opportunity for the Registered contractors in Florida.