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  1. G

    Fire Rated Electrical Rooms in a Medical Office Building

    California code has a specification of {Special Room} but not listed in definitions. It requires fire rating. Other items not listed by op could be triggering the requirement.
  2. G

    Fire Rated Electrical Rooms in a Medical Office Building

    Does the electrical room communicate with the interior space., or is outside access only? What is in the room critical care equipment {COP}?
  3. G

    Use of construction screws in framing

    DIVISION 06 00 00 WOOD, PLASTICS AND COMPOSITES Section 06 05 23 Wood, Plastic and Composite Fastenings (for nails, staples, screws used for wood connections and screws and PAFs used to attach wood to other base materials). Not sure about the fear of screws for structural. As stated by...
  4. G

    Plumbing Violation Photo Quiz

    5
  5. G

    Electrical - Is This A Violation of the NEC?

    Accessibility for Non-hazardous Locations: NEC 314.29 Section 314.29 specifies the requirements for junction boxes used in non-hazardous locations. Junction boxes should be accessible for inspection, maintenance and repair jobs. The location must allow for safe operation and maintenance and be...
  6. G

    NEC 400.12

    I would agree
  7. G

    Replacing Service Disconnect in Location Non-Compliant with NEC 110.26

    I similar scenario is when an HVAC contractor turns off a consumer's furnace during the winter to force a sale because the furnace has a crack in the heat exchanger. The gas company should be the one to terminate the service if a CO issue is present. 99% percent of the time the furnace will...
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    NEC 400.12

    exception to 300.[22] [c] Exception: This section shall not apply to the joist or stud spaces of dwelling units where the wiring passes through such spaces perpendicular to the long dimension of such spaces
  9. G

    Min / Max code-allowed height of panelboards and breakers

    48" is the top of the unobstructed reach height for ICC/ANSI 117.1-2003 308.2 Forward Reach. 308.2.1 Unobstructed. Where a forward reach is unobstructed, the high forward reach shall be 48 inches (1220 mm) maximum the low forward reach shall be 15 inches (380 mm) minimum above the floor.
  10. G

    NEC 400.12

    A little more detail as to how the wire is run and where. Conduit, plenum ceiling, etc.
  11. G

    Cleanout clearances

    I have snaked plenty of kitchen sinks using a Rigid K 50 snake by reaching the clog and running the cable to the next section at the trap, unhook the cable and then flushing the drain with hot water. removed the trap then the cable with a very minimal mess.
  12. G

    COMBUSTION AIR CALCULATIONS FOR A WATER HEATER CLOSET

    702.3.2 Size ofopenings. The net free area ofeach opening,calculated in accordance with Section 708, shall be a minimum of 1 square inch per 1,000 Btu/h (2201 mm2/kW) ofinput rating of the fuel-burning appliances drawing combustion and dilution air from the communicating spaces andshall be not...
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    COMBUSTION AIR CALCULATIONS FOR A WATER HEATER CLOSET

  14. G

    Public Restroom Mechanical Ventilation (Exhaust)

    Same issue with commercial kitchens
  15. G

    NM Cable Underground or In Conduit?

    There is none manufactured that is straight NMC but some UF has a double listing UF/NMC. Page 389 of UL White pages. Originally manufactured as "Barn Cable" until UF was produced. Specifically listed in 547 Agricultural Buildings
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    NM Cable Underground or In Conduit?

    Thank you for that correction
  17. G

    NM Cable Underground or In Conduit?

    310.8 (C) appears to confirm this: Wet Locations. Insulated conductors and cables used in wet locations shall comply with one of the following: (1) Be moisture-impervious metal-sheathed. (2) Be types MTW, RHW, yada yada yada. (3) Be of a type listed for use in wet locations.
  18. G

    NM Cable Underground or In Conduit?

    Reference: 334.12(B)(4) not permitted in a wet or damp location, 300.9 Raceways in Wet Locations Above Grade. Where raceways are installed in wet locations above grade, the interior of these raceways shall be considered to be a wet location. Insulated conductors and cables installed in raceways...
  19. G

    Dry Type Transformer Above Suspended Ceiling

    Yes 450.13{b} disconnect is not required to be within site. but could be
  20. G

    UF Cable to Jacuzzi

    (B) Wet Locations. The interior of enclosures or raceways installed underground shall be considered to be a wet location. Insulated conductors and cables installed in these enclosures or raceways in underground installations shall comply with 310.10(C) . My bad I FUBARED
  21. G

    UF Cable to Jacuzzi

    I would still say yes if run in conduit and fill rating is applied.
  22. G

    UF Cable to Jacuzzi

    In this scenario from panel, underground to disconnect that is required to be in sight The maintenance disconnecting means must be readily accessible and located within sight and at least 5 ft from the permanently installed pool, storable pool, outdoor spa, outdoor hot tub, or fountain equipment...
  23. G

    UF Cable to Jacuzzi

    You are correct there is no UF to my knowledge with a green ground conductor. They do make a three wire red, black, and white with a bare ground. The pump is required to have an insulated ground. and since it is smaller than a # 6 conductor you can not reidentify it with green tape.
  24. G

    UF Cable to Jacuzzi

    Is there a Green ground wire in your UF?
  25. G

    Makeup air requirements for chemistry lab?

    Try ASHRE 62.1 you need a balanced air exchange from 4 to 12 air changes per hour depending what part of the building is being served, such as chemical mixing ,storage, etc. and could require under emergency situation up to 20 air changes per hour.
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