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  1. Reverse-feeding this transformer

    Started by Cannonmn on 07-08-17
    2 Pages
    1 2
    480v., ground, transformer
    • Replies: 12
    • Views: 1,000
    Last Post: 07-10-17 12:55 PM
    by Jraef  Go to last post
  2. EGC as GEC (for xfrmr in MCC)

    Started by amatsu42 on 02-14-17
    egc, gec, ground, grounding electrode, transformer
    • Replies: 4
    • Views: 895
    Last Post: 02-15-17 01:35 PM
    by amatsu42  Go to last post
  3. GFCI selt test requirement UL 943 standard/ faulting GFCI

    Started by dylanmitchell on 11-28-16
    fault, gfci, ground, self test
    • Replies: 3
    • Views: 843
    Last Post: 11-28-16 10:21 PM
    by JFletcher  Go to last post
  4. Upsizing Equipment Ground for Voltage Drop

    Started by SunFish on 10-24-16
    250.122(b), egc, ground, voltage drop
    • Replies: 5
    • Views: 1,480
    Last Post: 10-25-16 11:17 AM
    by SunFish  Go to last post
  5. Grounding electrode/ Grounding conductor sizing

    Started by Spencer125 on 05-12-16
    ground, grounding, grounding electrode, sizing, sizing ground
    • Replies: 4
    • Views: 2,302
    Last Post: 05-13-16 12:26 PM
    by jumper  Go to last post
  6. measurable current on cable and ground

    Started by tesla six on 03-29-16
    current, ground, trouble shooting
    • Replies: 8
    • Views: 1,711
    Last Post: 03-29-16 10:12 PM
    by tesla six  Go to last post
  7. Ground Grids

    Started by MyBeardAndMe on 10-09-15
    250, ground, industrial, motor
    • Replies: 3
    • Views: 2,429
    Last Post: 10-09-15 06:17 PM
    by don_resqcapt19  Go to last post
  8. Flagpole Grounding?

    Started by MyBeardAndMe on 10-07-15
    flag, flagpole, ground, lightning, pole
    • Replies: 0
    • Views: 2,019
    Last Post: 10-07-15 07:46 PM
    by MyBeardAndMe  Go to last post
    • Replies: 9
    • Views: 2,396
    Last Post: 09-29-15 03:13 PM
    by bob  Go to last post
  9. Cable Tray Bonding

    Started by MyBeardAndMe on 08-28-15
    • Replies: 9
    • Views: 5,595
    Last Post: 09-02-15 07:17 PM
    by MyBeardAndMe  Go to last post
  10. Multi-Point Grounding

    Started by strippers&dykes on 05-04-15
    bond, ground, grounding, telco
    • Replies: 3
    • Views: 2,214
    Last Post: 05-05-15 08:56 AM
    by ron  Go to last post
  11. 2011 NEC, 250.118 (10) undersized ground conductor ???

    Started by Ranger86 on 02-03-15
    3 Pages
    1 2 3
    ground, grounding, mc cable
    • Replies: 20
    • Views: 6,923
    Last Post: 02-05-15 08:53 PM
    by MasterTheNEC  Go to last post

    Forum:
    NEC

    • Replies: 3
    • Views: 2,111
    Last Post: 02-17-14 03:36 PM
    by charlie b  Go to last post

    Forum:
    NEC

  12. Grounded conductor required for service?

    Started by greenspark1 on 02-04-14
    ground, grounded, service
    • Replies: 8
    • Views: 4,106
    Last Post: 02-04-14 04:16 PM
    by augie47  Go to last post

    Forum:
    NEC

    • Replies: 4
    • Views: 3,033
    Last Post: 01-13-14 02:37 PM
    by greenspark1  Go to last post

    Forum:
    NEC

  13. Resistivity of Materials

    Started by MyBeardAndMe on 02-27-13
    ground, ground grid, resistance, resistivity
    • Replies: 2
    • Views: 2,333
    Last Post: 02-27-13 11:49 AM
    by MyBeardAndMe  Go to last post
    • Replies: 1
    • Views: 2,325
    Last Post: 12-14-12 02:14 PM
    by iwire  Go to last post

    Forum:
    NEC

  14. Typical Ground Resistance Value

    Started by garnerm on 11-01-12
    2 Pages
    1 2
    ground, measured, ohm, resistance
    • Replies: 14
    • Views: 9,550
    Last Post: 11-04-12 09:30 AM
    by petersonra  Go to last post
  15. Splicing Neutral Across Mains

    Started by flengineer on 09-21-12
    bond, ground, neutral
    • Replies: 2
    • Views: 2,874
    Last Post: 09-22-12 07:29 AM
    by augie47  Go to last post

    Forum:
    NEC

  16. can I add a ground to exterior spa panel?

    Started by mike65401 on 08-15-12
    ground, hot tub, spa
    • Replies: 1
    • Views: 3,331
    Last Post: 08-15-12 12:37 PM
    by Dennis Alwon  Go to last post

    Forum:
    Safety

  17. NEC 690-35

    Started by Nalagia on 08-13-12
    690-35, ground, pv ground, pv systems
    • Replies: 2
    • Views: 3,742
    Last Post: 08-23-12 03:46 PM
    by jaggedben  Go to last post

    Forum:
    Education

  18. Establishing a neutral to ground bond on a telecommunicaitons shelter

    Started by encoreman on 06-13-12
    2 Pages
    1 2
    ground, ground conductor, neutral to ground bond
    • Replies: 10
    • Views: 5,296
    Last Post: 06-14-12 04:41 PM
    by iwire  Go to last post
  19. Whirlpool Tub and Ground / Neutral Bonded in Subpanel

    Started by pianomannick on 05-30-12
    bonding, ground, subpanel, tub
    • Replies: 7
    • Views: 6,739
    Last Post: 06-01-12 11:54 PM
    by pianomannick  Go to last post

    Forum:
    Safety

  20. Office Lighting

    Started by DukeHenry on 05-08-12
    ground, lighting, office
    • Replies: 9
    • Views: 5,737
    Last Post: 05-16-12 04:46 PM
    by TNBaer  Go to last post

    Forum:
    Lighting

  21. Lightning protection system

    Started by kbsparky on 05-02-12
    ground, lightning, protection, ring
    • Replies: 4
    • Views: 3,380
    Last Post: 05-02-12 08:20 PM
    by kbsparky  Go to last post
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