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Forum: Electrical Systems: Home Inspection and Commercial Inspection

Service Conductors, Panels, Overcurrent Protection Devices, Wiring Types and Methods, Switches, Receptacles, Light Fixtures ... For Home Inspections & Commercial Inspections

  1. MSE & service-disconnect before or after Meter?

    Started by Glenn Curtis, 09-01-2024 05:59 PM
    3 Attachment(s)
    • Replies: 8
    • Views: 24,276
    Glenn Curtis
    08-23-2025, 11:57 AM Go to last post

  2. 14s and 12s connected together in a box

    Started by Marc M, 06-05-2025 10:59 AM
    1 Attachment(s)
    • Replies: 5
    • Views: 3,274
    ROBERT YOUNG
    06-09-2025, 01:11 AM Go to last post

  3. I would like some clarification on how to interpret 210.12(A)(3)(a).

    Started by Marc M, 06-05-2025 12:45 AM
    • Replies: 6
    • Views: 2,841
    ROBERT YOUNG
    06-08-2025, 07:16 PM Go to last post

  4. Generac generator with transfer switch

    Started by Robert Huffman, 02-28-2024 02:00 PM
    • Replies: 5
    • Views: 11,929
    david shapiro
    02-29-2024, 01:37 PM Go to last post

  5. Breaker tripping question

    Started by Marc M, 09-29-2023 07:05 AM
    • Replies: 13
    • Views: 24,736
    Markus Keller
    10-30-2023, 02:22 PM Go to last post

  6. Old romex wire with ground

    Started by Ken Amelin, 05-09-2012 01:28 PM
    7 Attachment(s)
    • Replies: 19
    • Views: 22,421
    Gunnar Alquist
    09-12-2023, 09:23 PM Go to last post

  7. Amalgamated Electric Corporation Limited panel accessories

    Started by Tony Miller, 09-11-2023 04:46 PM
    2 Attachment(s)
    • Replies: 4
    • Views: 5,240
    Dom D'Agostino
    09-12-2023, 04:46 PM Go to last post

  8. Jumper on auxiliary panel

    Started by Robert Huffman, 09-06-2023 12:41 PM
    • Replies: 3
    • Views: 5,504
    david shapiro
    09-08-2023, 03:03 PM Go to last post

  9. Receptacle Tester Reliability

    Started by Gunnar Alquist, 07-13-2023 02:18 PM
    6 Attachment(s)
    • Replies: 15
    • Views: 7,619
    Jerry Peck
    08-05-2023, 12:49 PM Go to last post

  10. Max number of circuits in a panel

    Started by Ken Amelin, 07-18-2023 01:05 PM
    1 Attachment(s)
    • Replies: 11
    • Views: 7,568
    david shapiro
    07-27-2023, 11:00 AM Go to last post

  11. Common area equipment "associated" with an individual dwelling unit

    Started by david shapiro, 07-22-2023 01:32 PM
    • Replies: 11
    • Views: 7,585
    david shapiro
    07-26-2023, 11:01 AM Go to last post

  12. GFCI protection absent: do you flag this?

    Started by david shapiro, 05-19-2023 12:08 PM
    gfci, nec requirements, receptacles, shock, sop 4 Attachment(s)
    • Replies: 33
    • Views: 9,788
    david shapiro
    06-08-2023, 05:38 AM Go to last post

  13. Breaker trips to off position

    Started by George Hallaron, 05-18-2023 02:42 PM
    • Replies: 3
    • Views: 6,564
    George Hallaron
    05-31-2023, 02:15 PM Go to last post

  14. Change the standard: deadline approaching for NFPA 73 input

    Started by david shapiro, 05-16-2023 01:55 PM
    • Replies: 8
    • Views: 6,115
    david shapiro
    05-18-2023, 08:29 AM Go to last post

  15. Sub panel neutrals & grounds bonded

    Started by mark petty, 04-25-2023 03:04 PM
    1 Attachment(s)
    • Replies: 6
    • Views: 7,220
    david shapiro
    04-27-2023, 07:38 PM Go to last post

  16. Relay System

    Started by Jim Robinson, 04-01-2023 10:11 AM
    2 Attachment(s)
    • Replies: 9
    • Views: 7,035
    david shapiro
    04-05-2023, 02:56 PM Go to last post

  17. Meter main combo panel - make and model

    Started by Matthias Eichstaedt, 02-28-2023 12:04 AM
    6 Attachment(s)
    • Replies: 15
    • Views: 5,906
    david shapiro
    03-04-2023, 08:15 AM Go to last post

  18. Electrical shock at switch when turning on light

    Started by CHARLIE VAN FLEET, 02-20-2023 07:47 AM
    1 Attachment(s)
    • Replies: 1
    • Views: 6,389
    Jerry Peck
    02-20-2023, 08:38 AM Go to last post

  19. Roof HVAC miswiring

    Started by david shapiro, 02-06-2023 09:55 AM
    • Replies: 7
    • Views: 6,676
    Jerry Peck
    02-07-2023, 10:16 AM Go to last post

  20. IAEI & ICC, and goodbye NPCCI certification

    Started by david shapiro, 02-01-2023 11:10 AM
    • Replies: 1
    • Views: 5,839
    Jerry Peck
    02-01-2023, 04:05 PM Go to last post

  21. 2020 NEC Surge Protection

    Started by Gunnar Alquist, 01-22-2023 05:32 PM
    • Replies: 9
    • Views: 6,409
    david shapiro
    01-25-2023, 01:08 PM Go to last post

  22. New House and only 3 service wires ?

    Started by Sam Morris, 12-27-2022 03:09 PM
    5 Attachment(s)
    • Replies: 3
    • Views: 7,209
    Jerry Peck
    12-30-2022, 10:55 AM Go to last post

  23. 100 Amp Service with a 200 Amp Panel

    Started by Sam Morris, 11-01-2022 03:21 PM
    3 Attachment(s)
    • Replies: 4
    • Views: 7,747
    Jerry Peck
    11-01-2022, 07:19 PM Go to last post

  24. 1950s residential wiring . . . and 1950s residential wiring

    Started by david shapiro, 10-21-2022 03:52 PM
    • Replies: 5
    • Views: 7,848
    Jerry Peck
    10-21-2022, 08:35 PM Go to last post

  25. Bonding screw and a jumper in A secondary electrical panel

    Started by Sam Morris, 01-31-2018 06:35 PM
    7 Attachment(s)
    • Replies: 15
    • Views: 15,223
    Gunnar Alquist
    09-29-2022, 10:18 AM Go to last post

  26. Fix for a triple tap in a power panel

    Started by Robert Huffman, 07-11-2022 05:16 PM
    • Replies: 15
    • Views: 8,812
    Jerry Peck
    07-20-2022, 06:45 PM Go to last post

  27. Green wood

    Started by david shapiro, 07-12-2022 12:22 PM
    • Replies: 1
    • Views: 5,187
    Jerry Peck
    07-12-2022, 01:12 PM Go to last post

  28. June recall: Schneider Sq D QO Plug-on Neutral panelboards

    Started by david shapiro, 07-03-2022 09:29 AM
    1 Attachment(s)
    • Replies: 10
    • Views: 7,338
    Dom D'Agostino
    07-07-2022, 06:44 PM Go to last post

  29. Hot breaker in a panel

    Started by Robert Huffman, 06-15-2022 02:21 PM
    1 Attachment(s)
    • Replies: 7
    • Views: 7,326
    david shapiro
    06-17-2022, 05:53 AM Go to last post

  30. Schneider ElectricTM Recalls 1.4 Million Electrical Panels Due to Thermal Burn and Fi

    Started by Gary Burnett, 06-16-2022 05:13 PM
    • Replies: 0
    • Views: 8,182
    Gary Burnett
    06-16-2022, 05:13 PM Go to last post

  31. Bonding fuel gas piping systems

    Started by Jerry Peck, 05-31-2022 06:10 PM
    • Replies: 20
    • Views: 9,007
    Jerry Peck
    06-16-2022, 04:47 PM Go to last post

  32. Electrical Panel service wires Not in Conduit

    Started by Sam Morris, 05-24-2022 03:25 PM
    4 Attachment(s)
    • Replies: 4
    • Views: 11,078
    Jerry Peck
    05-25-2022, 07:24 PM Go to last post

  33. Rules governing poles

    Started by david shapiro, 05-18-2022 06:00 AM
    • Replies: 13
    • Views: 7,338
    Jerry Peck
    05-20-2022, 06:00 AM Go to last post

  34. What is this thing in this power panel

    Started by Robert Huffman, 04-19-2022 04:21 PM
    2 Attachment(s)
    • Replies: 8
    • Views: 6,293
    Robert Huffman
    04-21-2022, 04:04 PM Go to last post

  35. Is this Sub Panel Wired Correctly?

    Started by Preston Davis, 12-09-2021 07:20 PM
    2 Attachment(s)
    • Replies: 48
    • Views: 15,963
    david shapiro
    03-22-2022, 01:30 PM Go to last post

  36. Permitting new knob-and-tube wiring

    Started by david shapiro, 03-17-2022 12:45 PM
    • Replies: 1
    • Views: 6,870
    Jerry Peck
    03-17-2022, 05:09 PM Go to last post

  37. Neutrals and Grounds

    Started by Ty Lippert, 02-02-2022 03:56 PM
    2 Attachment(s)
    • Replies: 5
    • Views: 6,832
    david shapiro
    02-09-2022, 03:58 PM Go to last post

  38. Home Inspector

    Started by Gary Cobb, 11-02-2010 10:35 AM
    • Replies: 12
    • Views: 14,991
    david shapiro
    12-31-2021, 04:10 PM Go to last post

  39. Service Panel with missing bonding screw

    Started by Sam Morris, 12-15-2021 04:23 PM
    3 Attachment(s)
    • Replies: 1
    • Views: 5,802
    david shapiro
    12-15-2021, 07:10 PM Go to last post

  40. Service panel questions

    Started by Sam Morris, 11-16-2021 03:06 PM
    4 Attachment(s)
    • Replies: 24
    • Views: 11,435
    david shapiro
    11-29-2021, 11:07 AM Go to last post

  41. Code adoption and Intellectual Property rights

    Started by david shapiro, 10-11-2021 10:03 AM
    codes, free access, intellectual property, internet archive, standards
    • Replies: 4
    • Views: 7,148
    david shapiro
    11-26-2021, 05:09 PM Go to last post

  42. Lead where? Lead how? (Plumbum)

    Started by david shapiro, 11-24-2021 10:50 PM
    • Replies: 6
    • Views: 5,783
    david shapiro
    11-25-2021, 03:41 PM Go to last post

  43. Eaton afci breakers

    Started by CHARLIE VAN FLEET, 11-02-2021 08:17 AM
    2 Attachment(s)
    • Replies: 3
    • Views: 6,080
    david shapiro
    11-25-2021, 07:02 AM Go to last post

  44. OIL IN PANEL

    Started by wayne soper, 07-08-2012 07:46 AM
    7 Attachment(s)
    • Replies: 32
    • Views: 24,610
    david shapiro
    11-25-2021, 06:55 AM Go to last post

  45. Grounding a power panel

    Started by Robert Huffman, 11-03-2021 04:13 PM
    • Replies: 5
    • Views: 6,663
    david shapiro
    11-24-2021, 10:34 PM Go to last post

  46. Fuse box wiring

    Started by Robert Huffman, 10-06-2021 05:06 AM
    • Replies: 21
    • Views: 9,683
    Jerry Peck
    10-11-2021, 09:05 AM Go to last post

  47. Need help

    Started by ROBERT YOUNG, 09-27-2021 01:10 AM
    3 Attachment(s)
    • Replies: 6
    • Views: 7,586
    ROBERT YOUNG
    10-02-2021, 11:22 PM Go to last post

  48. Grounding Electrode ?

    Started by Sam Morris, 09-09-2021 12:20 PM
    4 Attachment(s)
    • Replies: 11
    • Views: 7,019
    david shapiro
    10-02-2021, 06:27 PM Go to last post

  49. setting up shop, running secondary to outbuilding

    Started by flargen, 09-09-2021 11:16 PM
    • Replies: 10
    • Views: 7,372
    flargen
    09-14-2021, 07:37 AM Go to last post

  50. Smoke, CO and Gas alarm codes and standards

    Started by david shapiro, 09-04-2021 06:17 PM
    carbon monoxide, nfpa 70, nfpa 72, smoke alarms, ul standards
    • Replies: 0
    • Views: 5,666
    david shapiro
    09-04-2021, 06:17 PM Go to last post

  51. grounding source required for detached building

    Started by Don Hawley, 08-01-2021 08:05 AM
    • Replies: 2
    • Views: 7,373
    Jim Port
    08-02-2021, 03:40 PM Go to last post

  52. Bonding Strap Removed on Main Panel

    Started by Sam Morris, 07-02-2021 02:43 PM
    4 Attachment(s)
    • Replies: 10
    • Views: 8,162
    Jerry Peck
    07-06-2021, 05:20 PM Go to last post

  53. Air Handler Heat Strips

    Started by Karen Bracken, 06-01-2021 12:50 PM
    heat strips, solar
    • Replies: 10
    • Views: 7,686
    Jerry Peck
    06-04-2021, 03:02 PM Go to last post

  54. Feeder laying on crawl space floor

    Started by Sam Morris, 04-19-2021 06:50 PM
    2 Attachment(s)
    • Replies: 7
    • Views: 7,922
    John Kogel
    05-04-2021, 06:11 PM Go to last post

  55. new gfci code for ac units

    Started by CHARLIE VAN FLEET, 02-26-2021 07:26 AM
    • Replies: 13
    • Views: 9,436
    Jerry Peck
    03-25-2021, 02:00 PM Go to last post

  56. Corrosion on the busbar

    Started by Sam Morris, 02-26-2021 03:01 PM
    2 Attachment(s)
    • Replies: 9
    • Views: 7,891
    david shapiro
    03-24-2021, 06:38 PM Go to last post

  57. safe cable installation

    Started by CHARLIE VAN FLEET, 03-13-2021 01:41 PM
    2 Attachment(s)
    • Replies: 17
    • Views: 8,813
    david shapiro
    03-24-2021, 06:21 PM Go to last post

  58. Panel 11ft above the basement floor

    Started by Sam Morris, 02-17-2021 04:23 PM
    2 Attachment(s)
    • Replies: 5
    • Views: 9,097
    Jerry Peck
    02-18-2021, 07:16 PM Go to last post

  59. Church Covered Patio Electrical

    Started by Sam Morris, 02-04-2021 04:37 PM
    3 Attachment(s)
    • Replies: 3
    • Views: 6,606
    david shapiro
    02-17-2021, 07:46 PM Go to last post

  60. Federal Pacific Panel

    Started by Sam Morris, 02-16-2021 06:16 PM
    3 Attachment(s)
    • Replies: 2
    • Views: 6,544
    david shapiro
    02-17-2021, 07:36 PM Go to last post

  61. BUYERS HOME INSPECTION

    Started by Davin Strand, 01-25-2021 10:11 PM
    home inspection salt lake
    • Replies: 0
    • Views: 7,174
    Davin Strand
    01-25-2021, 10:11 PM Go to last post

  62. sub panel ground issue

    Started by Don Hawley, 12-20-2020 04:39 PM
    sub panel ground issue 1 Attachment(s)
    • Replies: 7
    • Views: 8,272
    Gunnar Alquist
    12-22-2020, 05:30 PM Go to last post

  63. Double tapper AFCI questions

    Started by ROBERT YOUNG, 12-19-2020 04:57 AM
    • Replies: 6
    • Views: 7,267
    ROBERT YOUNG
    12-20-2020, 07:45 AM Go to last post

  64. A dangerous patent for "self-grounding" receptacle outlet

    Started by Jerry Peck, 09-28-2020 08:53 AM
    1 Attachment(s)
    • Replies: 7
    • Views: 10,245
    Gunnar Alquist
    12-13-2020, 09:09 PM Go to last post

  65. GFCI/AFCI testing question

    Started by Roy Guard, 11-15-2020 05:19 PM
    • Replies: 6
    • Views: 7,895
    Bill Kriegh
    12-08-2020, 12:35 PM Go to last post

  66. Main panel to Auxillary panel setup

    Started by John Farmer, 10-16-2020 09:34 AM
    4 Attachment(s)
    • Replies: 4
    • Views: 8,556
    Jerry Peck
    10-27-2020, 03:14 PM Go to last post

  67. Service panel 200A, main breaker 100A.

    Started by Ken Amelin, 10-25-2020 07:41 AM
    2 Attachment(s)
    • Replies: 4
    • Views: 8,410
    Bill Kriegh
    10-27-2020, 12:46 PM Go to last post

  68. Dangerous DYI Electrical

    Started by Mike Clarke, 10-21-2020 05:55 PM
    1 Attachment(s)
    • Replies: 0
    • Views: 7,499
    Mike Clarke
    10-21-2020, 05:55 PM Go to last post

  69. 2020 Changes to the NEC

    Started by Jerry Peck, 07-22-2020 04:24 PM
    • Replies: 8
    • Views: 11,342
    Rollie Meyers
    10-17-2020, 05:46 PM Go to last post

  70. Missing a neutral feeder (secondary panel)

    Started by Sam Morris, 10-13-2020 05:32 PM
    5 Attachment(s)
    • Replies: 2
    • Views: 6,805
    Jerry Peck
    10-13-2020, 07:55 PM Go to last post

  71. Main panel with missing bonding jumper

    Started by Sam Morris, 08-10-2020 03:26 PM
    12 Attachment(s)
    • Replies: 11
    • Views: 9,773
    Rollie Meyers
    08-15-2020, 05:00 PM Go to last post

  72. Ground connection in remote panel (again)

    Started by Ken Amelin, 08-04-2020 02:02 PM
    1 Attachment(s)
    • Replies: 4
    • Views: 9,446
    Jerry Peck
    08-05-2020, 12:27 PM Go to last post

  73. Black and Red Insulated Conductors

    Started by Gunnar Alquist, 07-21-2020 07:13 PM
    2 Attachment(s)
    • Replies: 2
    • Views: 7,666
    Timothy Thoner
    07-22-2020, 08:38 AM Go to last post

  74. When were grounds and neutrals required to be separate in subpanels?

    Started by Randall Clark, 07-06-2020 05:20 AM
    • Replies: 8
    • Views: 11,312
    Jeffrey Olson
    07-12-2020, 06:52 PM Go to last post

  75. 4 wires to a 20 amp double pole breaker

    Started by David A. Smith, 06-07-2020 07:45 PM
    1 Attachment(s)
    • Replies: 7
    • Views: 9,220
    Gunnar Alquist
    06-12-2020, 09:01 AM Go to last post

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