Another great resource from Mike Holt Enterprises! The following is a list of the top topics discussed on our code forum in the past month. Simply click on any topic that interests you to read or join in the discussion. If you’re not already registered as a code forum member, click here to sign up now!

1: Relative size and Arc Flash Hazards of 50 Hz versus 60 Hz transformers at same KVA with 109 replies in the Electrical Calculations / Engineering forum
2: Harmonizing the 2nd lowest American utilization voltage.. 208 and 240v with 78 replies in the Electrical Calculations / Engineering forum
3: 30 amp water heater (re-identifying white wire) just venting with 60 replies in the NEC forum
4: AFCI - GFCI ins 2014 NEC with 49 replies in the NEC forum
5: Using a individual 14awg green insulated ground wire for grounding. with 36 replies in the Grounding versus Bonding forum
6: Romex with 34 replies in the NEC forum
7: NEC Violation? with 33 replies in the NEC forum
8: 8' rule for Service disconnecting means with 33 replies in the NEC forum
9: What exactly are dry contacts with 32 replies in the Education forum
10: UPS Failure's with 30 replies in the Grounding versus Bonding forum
11: Delaware enacts Snitch Law with 30 replies in the Business Management / Estimating forum
12: a question about multiple motors on the same starter... with 28 replies in the Electrical Calculations / Engineering forum
13: 208v circuit count with 28 replies in the Business Management / Estimating forum
14: Question about Grounding Electrode size with 26 replies in the Education forum
15: Industrial Facility Power Quality Issues with 26 replies in the Electrical Calculations / Engineering forum
16: Your opinion of existing 3 wire Dryers and Ranges on Sub panel with 25 replies in the NEC forum
17: 480V Switchgear on 240V Service with 24 replies in the NEC forum
18: Circuit Breaker "On" with no connection with 23 replies in the NEC forum
19: Relocating a closet panel - AFCI question with 23 replies in the NEC forum
20: 3 circuits in one 2 gang box with 22 replies in the NEC forum
21: What is this in laymans terms? with 21 replies in the Electrical Calculations / Engineering forum
22: Grounding Electrode with 21 replies in the NEC forum
23: aluminum wiring with 21 replies in the NEC forum
24: Bridging over a water pipe dialetric union (for electrical grounding) with 20 replies in the Grounding versus Bonding forum
25: Exponential Curve with 20 replies in the Education forum
26: Main Grounding Conductor with 19 replies in the NEC forum
27: Drill or not to drill with 19 replies in the NEC forum
28: Need opinions on heat with 19 replies in the Electrical Calculations / Engineering forum
29: Permits with 19 replies in the NEC forum
30: What would you do? with 18 replies in the Business Management / Estimating forum