Search:

Type: Posts; User: Smart $

Page 1 of 8 1 2 3 4

Search: Search took 0.42 seconds.

  1. Replies
    17$$
    Views
    325

    I didn't get that the FM objected to flexible...

    I didn't get that the FM objected to flexible cord... only that the reel can be considered an extension cord, and thus considered temporary. OP brought up flexible cord being use in lieu of...
  2. Replies
    17$$
    Views
    325

    A [permanent-wired] cord pendant is IMO self...

    A [permanent-wired] cord pendant is IMO self protected simply because it is flexible. :D

    However, for strain relief I suggest using a kellum's grip just in case someone wants to play Tarzan. :p
  3. Replies
    17$$
    Views
    486

    An extra special Merry Christmas... :D

    An extra special Merry Christmas... :D
  4. Replies
    12$$
    Views
    162

    Yes. Ground detectors are required on any...

    Yes. Ground detectors are required on any ungrounded system with a nominal voltage from 120V to 1000V.
  5. Replies
    13$$
    Views
    424

    Get a NEMA Bulletin 505 1Ø 2-pole reversing...

    Get a NEMA Bulletin 505 1Ø 2-pole reversing starter and rewire as in attached pdf (check and double check my wiring)...

    For additional control stations, wire starts in parallel, stops in series.
    ...
  6. Replies
    13$$
    Views
    255

    Hmmm... in dealing with old wire vs. new, I got...

    Hmmm... in dealing with old wire vs. new, I got the impression quite often that old wire was larger.
  7. Replies
    17$$
    Views
    486

    Where'd you get that from???

    Where'd you get that from???
  8. Replies
    8$$
    Views
    104

    Agree... but I tend to believe many engineers are...

    Agree... but I tend to believe many engineers are superstitious when it comes to triplen harmonics effects. :D
  9. That would be the case for many... depends on...

    That would be the case for many... depends on make and model. Newer DMM's more so than older. I'm certain some of the first DMM's on the market only had 10kohm impedance. I stated the lowest value...
  10. Replies
    7$$
    Views
    114

    Installed neutral fuse was exactly my concern. I...

    Installed neutral fuse was exactly my concern. I would opt for a piece of busbar rather than bypassing with butt splices. I'd also remove the "fingers" and install connecting busbar in their stead.
  11. Replies
    7$$
    Views
    114

    Appears to be a fused disconnect. Did the...

    Appears to be a fused disconnect. Did the engineer also specify a means to not fuse the neutral?
  12. Replies
    37$$
    Views
    474

    :happyyes::happyyes::happyyes: :D

    :happyyes::happyyes::happyyes:

    :D
  13. Replies
    12$$
    Views
    162

    No. The requirement is it has to be grounded if...

    No. The requirement is it has to be grounded if (after grounding) the voltage does not exceed 150V.



    250.20(B) is mentioned in 250.21(A)(4), included by reference in 250.21(B)(1). The...
  14. Replies
    37$$
    Views
    474

    Referring to picture below, excluding earth,...

    Referring to picture below, excluding earth, grass, sky, everything else is built or constructed and physically connected through components. If you are going to distinguish any portion(s) as a...
  15. Replies
    4$$
    Views
    153

    I believe 400A and above is same as...

    I believe 400A and above is same as disconnects... but uncertain if it is actually a standard rather than commonplace. You'd likely have to refer to NEMA standards to make that determination.


    ...
  16. Replies
    12$$
    Views
    162

    Replies in blue...

    Replies in blue...
  17. Replies
    37$$
    Views
    474

    Structure size had no bearing in my stated...

    Structure size had no bearing in my stated opinion. I'm simply saying an installation or specific part thereof has to be distinguished as a separate structure before the requirements apply. Since...
  18. Replies
    2$$
    Views
    155

    Nothing highlighted in Table 310.15(B)(16)... so...

    Nothing highlighted in Table 310.15(B)(16)... so no changes AFAICT.
  19. Replies
    5$$
    Views
    108

    Yes, the secondary system can be ungrounded.

    Yes, the secondary system can be ungrounded.
  20. Replies
    4$$
    Views
    153

    Frame size is the panelboard rating, typically...

    Frame size is the panelboard rating, typically the bus rating. An example is a panelboard (with enclosure) rated 225A and a 200A MCB. An example where this could be an issue is 240.21(C)(1)(b). ...
  21. Replies
    37$$
    Views
    474

    Ahhh... perhaps refine "electrical equipment" to...

    Ahhh... perhaps refine "electrical equipment" to exclude utilization equipment...???

    If we take the NEC definition of structure to the nth degree, conduit, cabling, etc. is also built or...
  22. Thread: Cable ties

    by Smart $
    Replies
    14$$
    Views
    376

    Not contesting single conductors permitted in...

    Not contesting single conductors permitted in tray. I've actually installed 'em many times.

    Not arguing for the sake of arguing, but I understand how you perceive it as such. Sometimes my...
  23. Thread: Cable ties

    by Smart $
    Replies
    14$$
    Views
    376

    Well I didn't stop reading to soon, I just posted...

    Well I didn't stop reading to soon, I just posted the first sentence. Nonetheless, I was looking at the first sentence stipulation as inclusive of second sentence. The first sentence being a...
  24. Replies
    37$$
    Views
    474

    JMO... certainly debatable without resolution,...

    JMO... certainly debatable without resolution, but I think "structure" does not include a block of wood (post, pole, framework, etc.) which has the sole purpose of securing and/or supporting...
  25. Replies
    5$$
    Views
    108

    150V to ground means just that... but to be more...

    150V to ground means just that... but to be more specific it means the nominal voltage between the grounded conductor and any other system conductor. An ungrounded supply has no [nominal] voltage...
Results 1 to 25 of 200
Page 1 of 8 1 2 3 4