• Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by first logging in then clicking here: Upgrades

nec

  1. jar546

    Re-Use old AC Disconnect

    If you are called to inspect an AC replacement and you find the following, what how would you handle it? From the main panel to the disconnect was not changed, only the non-metallic liquidtight and condensing unit was changed. Feeding the disconnect is #8awg THWN copper in EMT. The old...
  2. jar546

    NEC 517.14 Health Care Facilities

    If a Chiropractor's office in a strip mall has 2 separate services providing power to his patient care areas, do the panels need to comply with 517.14 to each other, even if different services? In this case, the panels serve the left and right side of a common hallway (vicinity).
  3. jar546

    Low Voltage Wiring Securing

    This is way too common and rarely if ever enforced. NEC 800.133(B) pretty much covers this. Do you just ignore this? It becomes the domino effect then eventually creates hazards for the electrician.
  4. jar546

    Wiring of Accessory Building Equipment

    This situation can be anywhere but is often seen in attached/detached garages and other accessory buildings for people that like to work on their own stuff. Here is the scenario: The homeowner has a detached garage with a sub-panel in it that he uses to restore his personal vehicles. You are...
  5. jar546

    Green Tape and a Bonding Jumper to a Water Pipe

    Is a 1/0 black wire used as a bonding jumper to a 2" water pipe required to be marked and identified with green? What code section say thee?
  6. jar546

    30A Breaker on 14awg wire. Legal?

    I just ran conduit for a 2 HP 230V single phase motor using 14awg THHN wire protected by a 30A InvTime breaker. Are there any code issues with this installation?
  7. jar546

    AFCI Protection Options

    Lots of options for those on the 2014 NEC and making inspections more tedious.
  8. jar546

    Electrical and The Energy Codes

    In all of my jurisdictions up north, we had a handle on the IECC when it came time for the electrical section. I even gave a presentation to my local IAEI chapter explaining the IECC's electrical section and recommended that every electrical inspector should be dual certified under the energy...
  9. jar546

    Why you don't see much aluminum in Florida

    In addition to this, there is the problem of the salty, humid air.
  10. jar546

    Changes in the 2014 NEC

    I know that some of you are already on the 2017 NEC but most of us are probably still anywhere from 2008 to 2014. For those that are on the 2005 or earlier, I wonder where you live and what universe the powers that be for your code decisions are in. Anyway, here are the changes from 2011 to...
  11. jar546

    200A Combo Meter for Service with Sub-Panel in Garage

    So here we go. Hopefully we will all learn something or at least refresh our memories with this situation. Let's start with this. Below is the photo of a combo 120/240v, 200A meter and disconnect that will be mounted on a single-family residence. Let's say this gets fed from above with 4/0...
    • jar546
    • Thread
    • combo meter electrical code irc nec residential electric sub panel sub-feed
    • Replies: 5
    • Forum: Electrical Codes
  12. jar546

    Conduit Depth

    Let's say you have a covered patio with a framed roof attached to a structure. The covered patio has plans for brick pavers. PVC conduit with 120v circuits is planned to cross under the covered patio, below the brick pavers. What depth does the conduit have to be? Would you consider the...
  13. jar546

    Plastic Box Fill with Integral Clamps

    We all know that plastic boxes are marked with their cubic inches along with some other info. Most 2 gang and octo boxes have integral clamps to hold the NM cable in place, simply by knocking it loose and the plastic tab puts pressure on the cable to hold it in place relatively secure. Single...
  14. jar546

    Bonding the structure of a solar panel farm

    Is this an acceptable bonding method for this galvanized structural steel?
  15. jar546

    Number of electrical meters on a single family dwelling

    Does anyone have any local ordinances that would prohibit someone from placing more than 1 electrical meter (one service, 2 or more meters) on a single family dwelling? There is no NEC issue with having more than one meter on a single family dwelling but I have run across this before for...
    • jar546
    • Thread
    • electrical service nec nfpa 70 sfd single family dwelling
    • Replies: 17
    • Forum: Electrical Codes
  16. jar546

    NEC 404.2(B) That pesky neutral controversy

    Is it really a controversy? See the picture above. If you were handed an electrical drawing for a control box that you had to supply the line and load of the object in the picture above and the line side was for a single phase motor. Would you consider it a problem if you were required to use...
    • jar546
    • Thread
    • electrical question nec nec 404.2(b) switched neutral
    • Replies: 4
    • Forum: Electrical Codes
  17. jar546

    Would You Pass This? Electrical Question 1 Sept. 2018

    OK, it really does not matter if you are on the 1999 NEC or 2017, so no need to specify. You are called for a final electrical inspection of an office building. It is time to inspect the emergency lighting system. The electrician proudly shows you how he put the emergency lighting on its own...
    • jar546
    • Thread
    • commercial electrical electrical code emergency lighting nec
    • Replies: 12
    • Forum: Electrical Codes
  18. LGreene

    Panic Hardware - 2017 NEC Changes

    I posted a question on the door and hardware forum but since it has to do with the NEC I figured I'd ask here as well. To keep the discussion together in one thread, could you check it out here: https://www.thebuildingcodeforum.com/forum/threads/panic-hardware-2017-nec-changes.21752/?
  19. LGreene

    Panic Hardware - 2017 NEC Changes

    There are some changes in the 2017 National Electrical Code with regard to rooms that require doors to have panic hardware or fire exit hardware. Since the NEC is not one of the codes I spend a lot of time reading, I'm hoping y'all can help me confirm whether I'm interpreting this correctly (or...
  20. LGreene

    Do I need panic hardware here?

    Do you know where panic hardware is required by the current model codes and the National Electrical Code? In case you don't, here's a refresher: http://idighardware.com/2016/10/do-i-need-panic-hardware-here/
Top