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: 4000 amp 480v 3ph switch gear with 140 replies in the Electrical Calculations / Engineering forum
2: capacitor with 59 replies in the Electrical Calculations / Engineering forum
3: Disp & Dishwasher on single 20A ckt? with 52 replies in the NEC forum
4: WHAT is the Difference between the expression Earthing and Grounding with 52 replies in the Grounding versus Bonding forum
5: SER cable in LB with 50 replies in the NEC forum
6: Stators and rotors with 43 replies in the Electrical Calculations / Engineering forum
7: Conduit Fill Calculations for Low Voltage Wires with 40 replies in the NEC forum
8: Variable Frequency Drive for Dust Extractor Fans with 39 replies in the Electrical Calculations / Engineering forum
9: What is the voltage of this? with 38 replies in the Electrical Calculations / Engineering forum
10: Horse Barn, Equipotential Grounding with 37 replies in the Grounding versus Bonding forum
11: Breaker upgrade ? Do it with the cheapest ? with 36 replies in the Electrical Calculations / Engineering forum
12: Calculating line impedance for distance relaying with 36 replies in the Electrical Calculations / Engineering forum
13: 3 phase service load with 35 replies in the Electrical Calculations / Engineering forum
14: Inrush current and motor power with 34 replies in the Electrical Calculations / Engineering forum
15: Receptacles under house with 34 replies in the NEC forum
16: 210.12 A 2,3&4 vs. 210.12 B 2 with 33 replies in the NEC forum
17: Choosing the between Inverse-time and Instantaneous-trip Breaker. with 33 replies in the Electrical Calculations / Engineering forum
18: coming into top of 3R cabinet or wireway with 32 replies in the NEC forum
19: Split wire on ground bar with 32 replies in the Grounding versus Bonding forum
20: Is ground rod needed? with 32 replies in the Grounding versus Bonding forum
21: Do you think this sink should require a receptacle? with 31 replies in the NEC forum
22: Non-Fuse Switch as Motor Disconnect with 28 replies in the Electrical Calculations / Engineering forum
23: Grounding for new Equipment Pad with 27 replies in the Electrical Calculations / Engineering forum
24: 320 Amp Service, Two Panels in Separate Structures, Disconnect Question with 26 replies in the Electrical Calculations / Engineering forum
25: motor is accelerating slightly over the course of a few hours on its own with 25 replies in the Electrical Calculations / Engineering forum
26: pvc raceways inside wall with 25 replies in the NEC forum
27: swimming pool light shocking with 24 replies in the Grounding versus Bonding forum
28: Your opinion (conduit burial or no) with 24 replies in the NEC forum
29: Neutral Needed??? with 23 replies in the Electrical Calculations / Engineering forum
30: Pigtails, Aluminiu, AFCI devices, and what defines Modifying a circuit with 23 replies in the NEC forum