This weeks change is for field-marking our equipment out in the field. Information that could change can be hand written based on the exception to (B)(2). So the AIC rating or Arc Flash information that could change on a label can be hand written. See the label below.
Till next time work safe be safe
Jake
This is a new requirement, but only in the 2014 Code.
Till next time be safe work safe
Jake
On 7/10 I did a piece showing the new GFCI requirements from the 2014 Code. On 7/20 I watched a Webinar with NFPA and found that in the 2017 NEC it places an exemption on a Code requirement that was new in the 2014 Code. It stated in the 2014 NEC that around kitchen sinks it would be a requirement to have GFCI protection within 6’ of the sinks edge on all 125 volt 15 and 20 ampere receptacles. Then in the Webinar they exempted the garbage disposal outlet from needing this protection. I’m still waiting to see the published edition of the 2017 NEC, but I am sure that they would not have made a statement about the garbage disposal if they hadn’t exempted it in the new edition of the Code. Dishwasher are still going to be required to be GFCI protected in the 2014 and the 2017 NEC.
Till next time
Check your circuits before working on them.
Jake
This weeks Code change is in the Arc fault section of 210. New additions to the places Arc Faults will be required.
Till next time work safe be safe
Jake
This is a Code change from section 210.8. This particular change is for dwelling units. New and revised parts of this Code have made more GFCI protection mandatory.
These are all part of the 2014 Code changes and not part of the Code in place at this time in Florida. Florida is still
under the 2011 NEC.
Till next time work safe be safe
Jake
First of all Happy Fourth of July.
This Code section has been added to the “2014” Code (which is not adopted in Florida),
to instruct us as to what is accepted for field applied labels.
Some of the sections that require theses labels are 110.16, 110.24, 408.3, and many others.
110.21 Marking.
(B) Field-Applied Hazard Markings. Where caution,
warning, or danger signs or labels are required by this
Code, the labels shall meet the following requirements:
1) The marking shall adequately warn of the hazard using
effective words and/or colors and/or symbols.
(2) The label shall be permanently affixed to the equipment
or wiring method and shall not be hand written.
Exception to (2): Portions of labels or markings that are
variable, or that could be subject to changes, shall be per-
mitted to be hand written and shall be legible.
(3) The label shall be of sufficient durability to withstand
the environment involved.
Informational Note: ANSI Z535.4-2011, Product Safety
Signs and Labels, provides guidelines for the design and
durability of safety signs and labels for application to electrical equipment.
Some of the signs will be allowed to be hand written, but not all of them. Ask your electrical inspector/plan reviewer for guidance.
Till next week be safe out there, always use a tester to see if it is Hot!
Jake
This new change will require the use of “EXTRA-DUTY” covers on receptacles installed in wet locations. The new covers have the words EXTRA-DUTY installed on the cover. These outlets would be for other than in dwelling unit locations and ones that are supported from grade. In addition to these requirements the outlet will have to be GFCI protected with a few exceptions.
210.8 (B)(4) Exception #1,2
Exception No. 1 to (3) and (4): Receptacles that are not readily accessible and are supplied by a branch circuit dedicated to electric snow-melting, deicing, or pipeline and vessel heating equipment shall be permitted to be installed in accordance with 426.28 or 427.22, as applicable. (We can’t use this down here in south Florida)
Exception No. 2 to (4): In industrial establishments only, where the conditions of maintenance and supervision ensure that only qualified personnel are involved, an assured equipment grounding conductor program as specified in 590.6(B)(2) shall be permitted for only those receptacle outlets used to supply equipment that would create a greater hazard if power is interrupted or having a design that is not compatible with GFCI protection.
Till next week work safe be safe
Jake
Under this new Code Change you will be required to IDENTIFY the ungrounded conductors in a branch circuit when you have two different electrical systems in building. This is when you have 277/480 and 120/208. They instruct you to identify them by color coding, marking tape or some kind of other approved means. It states that you also have to post it by the panel. Most inspectors are going to require that the entire branch circuit comply with this requirement, you will have to ask about travelers and switch legs coming off a branch circuit.
This past week I was asked if just taping the conductors will be acceptable, and looking at the section size does not matter and taping even 14 gauge wire will be just fine. After all this is Article 210 for Branch Circuits.
(C) Identification of Ungrounded Conductors. Ungrounded
conductors shall be identified in accordance with
210.5(C)(1), (2), and (3).
(1) Application. Where the premises wiring system has
branch circuits supplied from more than one nominal voltage
system, each ungrounded conductor of a branch circuit
shall be identified by phase or line and system at all termination,
connection, and splice points.
(2) Means of Identification. The means of identification
shall be permitted to be by separate color coding, marking
tape, tagging, or other approved means.
(3) Posting of Identification Means. The method utilized
for conductors originating within each branch-circuit panelboard
or similar branch-circuit distribution equipment
shall be documented in a manner that is readily available or
shall be permanently posted at each branch-circuit panelboard
or similar branch-circuit distribution equipment.
Till next week be safe work safe
Jake
This is number nine in the top ten series and will probably take years before we get use to it.
This Table used to be 310.16. After all these years it is hard to call it by its new numbers but I’m
sure we will all get used to it. Not only did the number of the Table change several wire ampacities
also changed. For the Copper side #s 14, 12, 3, 1, 600, 1,500, 2,000, and for the Aluminum side
#s 12, 8, 6, 300, 700, and 800.
THE NEW ALLOWABLE AMPACITY TABLE 310.15(B)(16)
Till next week, work safe be safe
Jake
This weeks change number eight in this series, has to do with underground conduits entering/leaving a building or structure. This is for outside branch circuits and feeders, just like we have been doing for services in 230.8 we now seal off branch circuit and feeder conduits. Conduits shall be sealed when entering/leaving a building using duct seal or some other material that is identified for the purpose.
Till next week
Work safe be safe
Jake