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  1. Thread: 240 v install

    by Johnny C
    Replies
    16
    Views
    1,910

    240-V Range Installation

    DO NOT install a 50 ampere breaker for a range that is listed to be used with a 30 ampere overcurrent device. Remember the wiring in the electric range is designed to be used with a 30 ampere...
  2. Replies
    23
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    3,968

    Server tripping GFCI

    Eliminate the surge suppressors from the load side of the GFCI and install one on the line side of the GFCI.
  3. Replies
    37
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    3,732

    Question for Electrical Guru

    Based on 2005 NEC.
    Based on the photo provided, there are a few Code violations.
    1. Section 312.5 requires a connector or nipple with a bushing to proved protecion of the conductors feeding the...
  4. Replies
    13
    Views
    4,636

    AC condenser and air-handling unit.

    This answer is based on the 2005 NEC.
    Secton 110.3(B) requires you to follow the listing and labeled installation instructions applicable to that particular unit. The instructions and namplate...
  5. Replies
    8
    Views
    3,939

    30 amps - No. 12 awg, cu. wire

    This answer is based on the 2005 NEC:Table 310.16, the table used to determine the current-carrying capability of copper or aluminum conductors in cables, conduit, or directly buried in earth is very...
  6. Replies
    58
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    13,641

    AFCI tripping

    Reading your first posting of the problem, you mention that a small refrigerator is plugged into one of the AFCI protected outlets. Most modern refrigerators have a timed cyle that energizes electric...
  7. Replies
    3
    Views
    751

    Flickering Lights

    Turn the lights on and off in different room and notice if there is any change in brilliance either dimming or getting brighter, if this happens, it could be a faulty connection to the neutral...
  8. Replies
    9
    Views
    1,324

    15 amp sw

    Yes you can install a 20 ampere switch on a 15 ampere circuit.
  9. Replies
    9
    Views
    1,324

    15 amp switches

    Section 404.14 requires snap switches to be used within their ratings as marked. See Section 404.14(A) through (D). The ampere rating of the switch is based on the type of switch, the load current...
  10. Thread: sub panel?

    by Johnny C
    Replies
    10
    Views
    1,379

    Sub-panel ???

    The NEC uses the terminology "building or structure" in an installation where a fused or unfused disconnect or circuit breaker is mounted on a pole (structure) or building remote from the main...
  11. Replies
    9
    Views
    2,965

    Breaker didn't trip

    A faulty connection at the breaker terminal offers resistance to the flow of current thereby limiting the amount of current passing through the breaker. So the breaker doesn't trip due to high...
  12. 30 A fusible disconnect with CU pipe.

    Installing copper pipe in place of proper fuses or fuse blanks is a Code violation of 110-3(B). Use of the disconnect sw with other than a product for which it was tested and listed by the testing...
  13. Replies
    7
    Views
    6,393

    GFCI's

    To BEEKERC, You can install one GFCI receptacle feed other downstream receptacles from the load-side of the GFCI receptacle and they will be GFCI protected. You must place a label on the regular...
  14. Replies
    3
    Views
    1,805

    prewired office furnishings

    First of all, NFPA does not write the NEC, it is written by the public at large by them submitting proposals for change. The Code Committees evaluate the proposed changes and vote on it, very...
  15. Replies
    6
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    1,449

    Bulbs are Humming!

    How about a little humor: The bulbs are humming because the don't know the words, just like a transformer! An oldy but goody. Some of us old guy still have a sense of humor, we don't have much more.
  16. Replies
    7
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    6,393

    Tamper resistant recept.

    All 15 and 20 ampere receptacles installed in accordance with Section 210-52 are required to be of the "tamper resistant" type. That covers just about all 15 and 20 amp receptacles at a house. (OUCH)
  17. Replies
    13
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    3,324

    Dishwasher and Disposal on same circ.

    Good answer "Frenchie". UL listed product must be installed in accordance the their Labeling and Listing requirements, NEC 110-3(B).
  18. Replies
    9
    Views
    8,738

    Breaker size for # 12 wire

    You have not specified what type load and what type overcurrent protection is provided ie. (circuit breaker or fuse) the #12 conductor is supplying. If the circuit is supplying a motor load, the NEC...
  19. Replies
    13
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    2,785

    Wire Size Quest.

    The NEC does NOT prohibit properly connecting a number 12 awg Cu conductor to a number 14 awg Cu conductor that has overcurrent protection rated at 15 amperes. This is no different than connecting...
  20. Replies
    8
    Views
    2,381

    Box fill Calc.

    I believe the confusion arises because you are not aware of the method of determining the cubic inch capacity by UL, for a device box. The box is filled with a fine sand and the amount is then...
  21. Replies
    3
    Views
    1,805

    Wiring in Office furnishing

    The first thing I would check is whether the equipment is Labeled and Listed by a recognized testing laboratory and that the installation instructions are followed. Internal wiring of Labeled and...
  22. Thread: Code Question

    by Johnny C
    Replies
    8
    Views
    1,541

    Circuit for washing machine

    According to the NEC, it allows more than one receptacle outlet to be installed on the 20-ampere laundry branch-circuit. If you have a gas dryer, both the gas dryer and washing machine can be plugged...
  23. Replies
    5
    Views
    1,122

    Power supply to Panelboard

    Use type NM cable for the interior wiring to a "J box" and run conduit on the outside of the building with THWN or XHHW. The conductors must be suitable for a wet location.
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