2014 CODE CHANGE new section added 700.8 Surge Protection

Categories: News & Stuff

This new section requires a SPD (Surge protection device) to protect all EMERGENCY switchboards,

and panelboards.  You will need to know which panels and switchboards are connected to the emergency

system.

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If you have a question you would like answered please send it to us and we will post it in a future posting.

Till next time be safe work safe.

Jake


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Neutral Identification 200.4 (B) 2014 CODE CHANGE

Categories: Code change of the week

In the 2014 Code we are being asked to identify or group each neutral with each circuit it serves when there are more than one neutral in a conduit , enclosure, box or switchboard.  This is already being enforced in some municipalities based on the safety factor.  As most of you know disconnecting the wrong neutral can lead to burnt out appliances and even fires.  So this is going to be a major change that is going into effect in January.  In some of the installations that I have seen they identified the neutral by numbering them according to the circuit they served. 

If you have multiple circuit in a conduit you will need to identify or group the neutral with the phase conductors it serves.  This is going to take time to do and will also hold up your job if not done properly.

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Till next time be safe work safe, and Happy Thanksgiving from us to you.

Darlene and Jake


New Article 750 Energy Management Systems

Categories: Code change of the week

New for 2014 Energy Management Systems, deals with these types of systems.

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We probably should have had this in the Code along time ago, but better late than never.

Our first Continuing Education Classes for 2018 cycle will be held at Peninsular on December 5 and 6 from 6pm to 9pm.

You can check out the classes at our Web site.    www.electricalcodeconnection.com

Till next time be safe work safe

Jake

Not a Code change, Great graphics from the Florida Building Code Residential.

Categories: News & Stuff

This week we bring another great graphic from the FBC.  This pertains to drilling and notching wood framing members.

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Click on the diagram to make it full page.

Till next time be safe work safe

Jake

NFPA 72 17.7,3,2,1 Proper Mounting of Smoke Alarms

Categories: News & Stuff - Tags:

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Contractors and inspectors still call and ask about the location of smoke alarms, they want to make sure that the location they put it in is OK.

As shown above it is OK to mount a smoke alarm right up against the ceiling on the wall, there’s no longer that space of 4” down from the ceiling or 4”

away from the corner on the ceiling.  The space 12” down from the ceiling is to the top of the detector.  This changed in the 2010 NFPA 72.  Hope this helps.

Till next time be safe and work safe

Jake

Some changes aren’t always better.

Categories: News & Stuff

This Table from the Florida Building Code has been removed, and replaced by the new calculation using 83% for residential services.  Just as they did in the NEC the FBC removed an easier way to size residential conductors and overcurrent devices by replacing it with a calculation.  All changes aren’t necessarily better.  The table shown not only gives us the conductors and overcurrent device sizes it gives us the grounding electrode conductor size also.  Make a copy and stick it in your code book for easier reference or Email me and I’ll send you a PDF.

Till next time be safe work safe, and Happy Birthday to our son Aaron who turns 26 today.

Happy Birthday we love you.

Jake

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Florida Building Code Residential Clearances above roofs.

Categories: News & Stuff

Ever wonder when you put that service mast above the roof how far from the edge can it be or how high off the roof does it has to be.  This weeks post comes from the Florida Building Code Residential it is a graphic that will help you understand this section.  This section E3604.2.1 is a good example of how this section is interpreted, I added the red boxes for further clarification.

Click on the graphic below to view it full screen.

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Till next time work safe and be safe

Jake

Identifying neutral conductors grouped in a panelboard or enclosure

Categories: Code change of the week

   This weeks 2014 Code change comes from section 200.4(B) which deals with neutrals grouped in panelboards or enclosures.  Then identifying them so that you don’t mistakenly disconnect the wrong one and send an over or under voltage  to a piece of equipment and possibly burn it up.  This section requires us to identify the neutral conductor for each circuit or circuits it serves.  This is for single circuit or multi-wire circuit. 

   Over the years I have seen electricians working on circuits only to disconnect the neutral to move it around to make room for another neutral conductor, only to disconnect it while the circuit it serves was still energized.  This resulted in a burnt out refrigerator or computer that was on a multi-wire circuit.

   I have seen a few good ways to ID the neutrals by either numbering them with the corresponding circuit number(s) on each neutral or grouping them with a piece of the sheath from NM cable marked with the circuit ID. 

   There are a couple of Exceptions where you can tell which neutral goes with a particular circuit of a cable or conduit installation, or when there just isn’t room to mark the wire in an existing installation where the conductors are pulled through a box or enclosure without splices.

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Till next time work safe be safe and keep an eye on your helper.

Jake

Low Voltage lights around a pool

Categories: Code change of the week

This question has come up several times in the last couple of weeks. How close can I put my low voltage lights near a pool?

Section 680.22,B6 allows us to install LV fixtures closer than 5’ but they have to meet 680.23, A 2  for the type of transformer that is allowed to feed the fixtures.

680.22 B(6) Low-Voltage Luminaires. Listed low-voltage luminaires not requiring grounding, not exceeding the low-voltage contact limit, and supplied by listed transformers or  power supplies that comply with 680.23(A)(2) shall be permitted to be located less than 1.5 m (5 ft.) from the inside walls of the pool.

(2) Transformers and Power Supplies. Transformers and power supplies used for the supply of underwater luminaires, together with the transformer or power supply enclosure, shall be listed for swimming pool and spa use. The transformer or power supply shall incorporate either a transformer of the isolated winding type, with an ungrounded secondary that has a grounded metal barrier between the primary and secondary windings, or one that incorporates an approved system of double insulation between the primary and secondary windings.

LV fixtures at pool

Till next time

Be safe, work safe

Jake

Annex J ADA requirements

Categories: Code change of the week

A new annex has been added to the 2914 NEC Annex J which give us some guidance when dealing with ADA requirements.

You will no longer have to hunt for the ADA requirements for electrical installations, it will be in our Code book.

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Till next time be safe work safe

Jake