Mike Holt

Mike
Holt
Articles
Code Q&A: Air-Conditioner Calculations 
Q. How do I size the conductor and overcurrent protection for an air-conditioner? (Answer based on 2011 NEC.)
Code Q&A: GFCIs in Unfinished Basements  5
Q. Is GFCI protection required for a sump pump installed in an unfinished basement of a dwelling unit?
Stumped by the Code? Motor Control Circuit Overcurrent Protection 
Q. What is the Code rule for motor control circuit overcurrent protection?
Grounding and Bonding — Part 1 of 2 
Among the revisions to Art. 250, the 2014 NEC made some important wording changes that clear up confusion.
Code Q&A: Sizing an Optional Standby Generator 
Q. How do I size an optional standby generator when a manual or automatic transfer switch is installed? (Answer based on 2011 NEC.)
Code Q&A: Motor Protection 
Q. Does the Code allow a single overcurrent device to provide both overload and short circuit and ground fault protection for a motor? Can you also show me an example of how to size it?
Everything You Need to Know About Services 
Among the ways service conductor requirements differ from those for branch circuit and feeder conductors is service conductors for one structure can’t pass through the interior of another structure [230.3].
Code Q&A: Securing and Supporting PVC Raceway 
Q. What is the Code rule for the securing and supporting of PVC raceways? Answer based on 2011 NEC.
Code Q&A: Wiring Methods Allowed in Hazardous Locations  3
Q. What wiring methods does the NEC permit in a Class I, Div. 1 location?
Branch Circuits and the NEC 
A branch circuit consists of the conductors between the final overcurrent protection device (OCPD) and the point of use outlets [Art. 100].
Stumped by the Code? Rules for Sizing Feeder Conductors 
Q. What is the Code rule for sizing feeder conductors, both ungrounded and neutral? Please show an example.
Code Q&A: Equipment Grounding Conductor in PVC?  2
Q. Is an equipment grounding conductor always required in a PVC raceway between the electric utility meter and service disconnect?
Code Q&A: Sizing Conductors for Single Motor 
Q. How do I size the conductors and protection device for a single motor?
Basic Requirements for Electrical Installations  1
Article 110 contains some of the most important but neglected parts of the Code. It also answers these basic questions:
Stumped by the Code? Rules for Securing and Supporting Raceways  1
Q. What are the NEC rules for securing and supporting raceways? Specifically compare EMT, FMC, and PVC.
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