Mike Holt

Mike
Holt
Articles
Code Q&A: Smallest Approved Conductor  2
Q. What is the smallest conductor allowed by the NEC for branch circuits?
Code Q&A: Options Inside the Panel  2
Q. Can I make splices, taps, or install feed-through conductors in a panel?
Stumped by the Code? Types of Equipment Grounding Conductors Allowed by the NEC 
Q. What types of equipment grounding conductors does the NEC allow?
Small Wind Electric Systems 
When used for specific loads, small wind electric systems (SWESs) are often the sole power source.
Code Q&A: Minimum Cover Requirements 
Q. What are the minimum cover requirements for PVC and USE cable in commercial occupancies?
Code Q&A: Sizing EGC for Feeder Taps 

Q. What is the Code rule for sizing the equipment grounding conductor for feeder taps, and can you give me an example?

A. Equipment grounding conductors for feeder taps must be sized in accordance with Table 250.122, based on the ampere rating of the overcurrent device ahead of the feeder. In no case is it required to be larger than the feeder tap conductors [250.122(G)].

Stumped by the Code? Identifying a Class I Hazardous (Classified) Location 
Q. What is a Class I hazardous (classified) location?
The NEC and CATV/Radio Distribution Systems 
While Art. 810 provides the requirements for transmission or reception via an antenna, Art. 820 provides the requirements for the distribution of television and radio signals within a facility or on a property via cable.
Code Q&A: Splices in Conduit Bodies 
Q. When can I make a splice in a conduit body?
Code Q&A: Conductor Size for Class 1 Circuits 
Q. What is the smallest conductor allowed by the NEC for Class 1 control and signal circuits?
Radio and Television Equipment — Article 810 
Article 810 contains the installation requirements for the wiring of television and radio receiving equipment.
Code Q&A: NM Cable Rules  2
Q. Can I pull Type NM cable in a PVC sleeve located in a ground floor slab for the kitchen counter island?
Code Q&A: Ground Rod Electrodes  1
Q. What are the requirements related to the use of a ground rod for the grounding electrode system, including sizing of the grounding electrode conductor? (Answer based on 2011 NEC.)
NEC Facts about Fire Alarm Systems 
Article 760 covers the installation of wiring and equipment for fire alarm systems, including circuits controlled and powered by the fire alarm system.
2014 National Electrical Code Changes  20
The 2014 NEC was published last month by the NFPA and is now available for all to read. Check out the key changes to this edition of the Code.
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