Code Q&A
Sep 27, 2007, By Mike Holt
Q. A conductor passing through a box unbroken counts as one conductor, so if I loop a conductor through the box unbroken and strip off enough insulation to terminate on a receptacle without cutting the wire, does the conductor count as one or two conductors for box sizing?...
Code Q&A
Sep 13, 2007, By Mike Holt
Q. I want to install fluorescent strip lights on a sheetrock ceiling. Can I support the fixtures directly over the recessed outlet box and connect to the branch-circuit wiring through a chase nipple?...
Code Q&A
Aug 13, 2007, By Mike Holt
Q. Can I use aluminum rigid metal conduit in a Class 1, Div. I hazardous (classified) location?...
Code Q&A
Jul 27, 2007, By Mike Holt
Q. Can the disconnect switch be located next to equipment installed above an accessible drop ceiling, or must the switch be installed at a readily accessible location?...
Code Q&A
Jul 13, 2007, By Mike Holt
Q. In a dwelling unit, what are the receptacle requirements for island counter tops?...
Code Quandaries
Jul 1, 2007, By Mike Holt, NEC Consultant
Q. Can I pass conductors from one panel through another panel? If so, what are the restrictions?...
Code Q&A
Jun 27, 2007, By Mike Holt
Q. What are the requirements for supporting outlet boxes above/to suspended ceilings?...
Code Q&A
Jun 13, 2007, By Mike Holt
Q. When a lighting and appliance panelboard is fed from the secondary of a 3-phase transformer, is the panelboard required to have a main breaker installed in it?...
Code Q&A
May 29, 2007, By Mike Holt
Q. Can I install conductors from different panels in the same raceway?...
Stumped by the Code?
Apr 1, 2007, By Mike Holt, NEC Consultant
Q. Is it legal to make a mechanical transition from electrical metallic tubing (EMT) to flexible metal conduit with a fitting that joins these two raceways instead of installing a box?...
Stumped by the Code?
Feb 1, 2007, By Mike Holt, NEC Consultant
Q. Can I ground a satellite system to the metal parts of electrical equipment?...
Stumped by the Code?
Dec 1, 2006, By Mike Holt, NEC Consultant
Q. Do I need to use hospital-grade receptacles in a chiropractor's or medical examining room?...
Code Q&A
Nov 27, 2006, By Mike Holt
Q. What are the limitations on the use of rigid nonmetallic conduit in an underground application serving a gasoline dispenser?...
Code Q&A
Nov 13, 2006, By Mike Holt
Q. Can Table 310.15(B)(6) (reduced size wire for dwelling unit service) be used to size the service neutral conductor for a single-family dwelling?...
Stumped by the Code?
Nov 1, 2006, By Mike Holt, NEC Consultant
Q. How far away must I locate a receptacle outlet from a shower or bathtub?...
Code Q&A
Oct 25, 2006, By Mike Holt
Q. Do I have to use bonding jumpers around listed reducing washers?...
Code Q&A
Oct 11, 2006, By Mike Holt
Q. If an outdoor generator has a disconnect, do I need an additional disconnect where the conductors enter the building?...
Code Q&A
Sep 25, 2006, By Mike Holt
Q. Can I use 12-3 NM cable to wire the bathroom GFCIs and laundry circuit in a dwelling?...
Code Q&A
Sep 8, 2006, By Mike Holt
Q. I recently saw an advertisement for red conduit that is to be used for emergency circuits. Is this a Code requirement?...
Code Quandaries
Sep 1, 2006, By Mike Holt, NEC Consultant
Q. What size conductor is required for a 25-hp, 208V, 3-phase fire pump motor?...
Code Q&A
Aug 28, 2006, By Mike Holt
Q. Can “line” and “load” conductors be installed in the same raceway?...
Code Q&A
Aug 14, 2006, By Mike Holt
Q. What type of fitting can I use to terminate ground wires in a metal box?...
Stumped by the Code?
Aug 1, 2006, By Mike Holt, NEC Consultant
Q. Can 277V circuit conductors be placed within the same raceway with 120V circuit conductors?...
Code Q&A
Jul 25, 2006, By Mike Holt
Q. Is liquidtight flexible metal conduit (LFMC) permitted under the raised floor of a computer room? If yes, must it be secured?...
