Mike Holt's Code Forum
Top 50 Topics for 2013

Another great resource from Mike Holt Enterprises! The following is a lit of the top topics discussed on our Code Forum over the past year. 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: USB Receptacle with 220 replies in the NEC forum
2: AFCI Everthing! with 208 replies in the NEC forum
3: Power Factor verses Efficiency with 200 replies in the Electrical Calculations / Engineering forum
4: 3 Phase Current Flow with 145 replies in the Electrical Calculations / Engineering forum
5: Relative size and Arc Flash Hazards of 50 Hz versus 60 Hz transformers at same KVA with 141 replies in the Electrical Calculations / Engineering forum
6: unbalanced 3 phase generator load with 140 replies in the Electrical Calculations / Engineering forum
7: The Sufficiency of NEC rules with 130 replies in the NEC forum
8: Grounding VS Bonding with 129 replies in the Grounding versus Bonding forum
9: Recept location 210.52 with 117 replies in the NEC forum
10: Another Generator Grounding Question with 110 replies in the NEC forum
11: do we really need AFCIs with 105 replies in the NEC forum
12: "cords" above ceilings with 104 replies in the NEC forum
13: Grounding a mast with 90 replies in the NEC forum
14: Does article 314.29 mean I can't cover junction boxes with insulation? with 87 replies in the NEC forum
15: new title 24 requirements effective 01-01-14 in calif....... with 84 replies in the Business Management / Estimating forum
16: Inspectors rant again with 83 replies in the NEC forum
17: earthing calculation with 82 replies in the Electrical Calculations / Engineering forum
18: Combination circuit help with 82 replies in the Education forum
19: Question about calculating voltage drop on 3 phase inductive circuits with 81 replies in the Electrical Calculations / Engineering forum
20: Purpose of the neutral with 80 replies in the Education forum
21: HRG or NRG Resistance grounding with 80 replies in the Electrical Calculations / Engineering forum
22: Generator Interlock Kits with 80 replies in the NEC forum
23: Harmonizing the 2nd lowest American utilization voltage.. 208 and 240v with 78 replies in the Electrical Calculations / Engineering forum
24: Maximum recommended motor hp served at 480v?? with 77 replies in the Electrical Calculations / Engineering forum
25: Portable Generators - GFCI - System Bonding Jumper with 76 replies in the NEC forum
26: Condensing Unit Overcurrent Protection with 76 replies in the NEC forum
27: AHJ's mandating two ground rods or testing - how STOP them? with 71 replies in the Grounding versus Bonding forum
28: POCO and Voltage Drop Disagreement with 70 replies in the Electrical Calculations / Engineering forum
29: transit connect with 68 replies in the Business Management / Estimating forum
30: keep getting undercut with 65 replies in the Business Management / Estimating forum
31: lack of knowledge with 65 replies in the NEC forum
32: AC and MC cable color code with 64 replies in the NEC forum
33: Water Heater with 64 replies in the Grounding versus Bonding forum
34: Why four wire instaed of three for range and dryer? with 64 replies in the NEC forum
35: I need Help with a bending radius with 63 replies in the NEC forum
36: Disconnect for detached garage? with 61 replies in the NEC forum
37: Crest Factor & Harmonic Distortion with 61 replies in the Electrical Calculations / Engineering forum
38: Electric Cooktop 3-Wire Connection with 61 replies in the NEC forum
39: Direct Deposit? with 60 replies in the Business Management / Estimating forum
40: 30 amp water heater (re-identifying white wire) just venting with 60 replies in the NEC forum
41: GEC at Sub Panel with 59 replies in the NEC forum
42: 250 amp fuse blowing ( 480V 1800 rpm 150hp motor ) with 59 replies in the Electrical Calculations / Engineering forum
43: I need help with a complex calculation with 59 replies in the Electrical Calculations / Engineering forum
44: Using a 25hp VFD on a 30hp motor with 58 replies in the Electrical Calculations / Engineering forum
45: Advice on pulling 800 amps. with 58 replies in the Electrical Calculations / Engineering forum
46: Kindly advise 215.2 (A) (1) with 58 replies in the NEC forum
47: Tough call with 58 replies in the Business Management / Estimating forum
48: How to tell AC/DC in the field with 58 replies in the Education forum
49: Autotransformer output clipping with 57 replies in the Electrical Calculations / Engineering forum
50: Electrode resistance. From what to what? with 57 replies in the Grounding versus Bonding forum