Search:

Type: Posts; User: GoldDigger

Page 1 of 8 1 2 3 4

Search: Search took 0.06 seconds; generated 40 minute(s) ago.

  1. Replies
    31$$
    Views
    1,037

    Some electric railways use 20 Hz traction power...

    Some electric railways use 20 Hz traction power at currents that can cause gradients far away. Not super likely to be what you are seeing, but there are other 20 Hz systems out there.
  2. Replies
    10$$
    Views
    225

    The tester pulls a low current through the...

    The tester pulls a low current through the indicator lamps.
    If the receptacle and/or GFI are miswired and the GFI is too sensitive the "normal" current could be tripping the GFI.
    you can test the...
  3. Replies
    12$$
    Views
    328

    But if it has to be adjacent to the countertop,...

    But if it has to be adjacent to the countertop, it does not need to also be adjacent to the sink/basin. Unless you see the two sinks as creating three separate countertops. :(
  4. Replies
    20$$
    Views
    471

    I believe that you can, as the standard EV...

    I believe that you can, as the standard EV connectors have both AC and DC pins. But it would have to be a Tesla charger such as the ones they use at supercharger stations.
    You can also get a...
  5. If your connection is to the service conductors...

    If your connection is to the service conductors (upstream of normal service disconnect) it is not a tap and no tap rules apply. Instead you follow the rules for service conductors, including keeping...
  6. Replies
    7$$
    Views
    155

    For my own house remodel I designed a rolling...

    For my own house remodel I designed a rolling island (very large wheels to handle the weight without damaging the hardwood floor).
    I just had the EC install a floor receptacle outlet under one edge...
  7. Replies
    22$$
    Views
    245

    And then there is the ever popular LADWP. They do...

    And then there is the ever popular LADWP. They do not allow supply side connections and as recently as about a year ago had some strange ideas about the 120% rule.
    If, to meet the 120% rule, you...
  8. Looks like they do accept it...

    Looks like they do accept it as long as proper safety practices are followed. Individual company policies may be more strict.

    As for stilts, it appears that the Feds are still open to their use...
  9. It may not be applicable, but I understand that...

    It may not be applicable, but I understand that OSHA does not like stilts.
  10. Replies
    4$$
    Views
    150

    As I read it you not only need to have held the...

    As I read it you not only need to have held the Arkansas license for six months but have actually worked in Arkansas for that period of time (1000 hours) under that license.
  11. Replies
    74$$
    Views
    3,506

    Just out of curiosity, was it a molded connector...

    Just out of curiosity, was it a molded connector or a discrete one added later?
  12. Replies
    13$$
    Views
    261

    Trick question? On the utility side of the...

    Trick question? On the utility side of the service point POCO can do whatever they want.
  13. Replies
    48$$
    Views
    1,618

    That is the purpose of Lock Out / Tag Out. And in...

    That is the purpose of Lock Out / Tag Out. And in some cases visible break disconnecting means.
    Among other things it is a very good reason why locking out the control circuit of a contactor or...
  14. A fuse is OCPD, yes. If the OP is under [2014]...

    A fuse is OCPD, yes.
    If the OP is under [2014] NEC then it is possible to apply a different rule, the 100% rule for loads, avoiding the 120% rule entirely. Otherwise a picky AHJ will essentially...
  15. Thread: Top Helper

    by GoldDigger
    Replies
    2$$
    Views
    176

    Theoretically, if you could find terminations,...

    Theoretically, if you could find terminations, devices, and equipment enclosures all rated for 90C you could use that column for basic sizing of the circuit as long as the wire type had a 90C column...
  16. Replies
    168$$
    Views
    5,065

    If you get a transformer to get 120/240 it will...

    If you get a transformer to get 120/240 it will have a single phase secondary and will necessarily not present a balanced load on the service.
    This is not necessarily a bad thing as long as the...
  17. Replies
    7$$
    Views
    261

    There is the difference in usage. It fits into...

    There is the difference in usage.
    It fits into one space in the panel and is one physical device, but most everybody would still call it two poles and specifically two single pole breakers as it...
  18. Replies
    15$$
    Views
    314

    An interesting state of affairs. Readily...

    An interesting state of affairs.

    Readily Accessible allows for locked doors while just Accessible does not. :angel:

    Or else it depends on context, i.e. whether Accessible is a good thing or a...
  19. Replies
    5$$
    Views
    176

    Since UL does not have any classification that...

    Since UL does not have any classification that permits cord and plug connected grid tie inverters, chances are that either the UL listing label is counterfeit or it is really just a UL recognized...
  20. The NEC does not require you to use more than one...

    The NEC does not require you to use more than one circuit. Design for the expected load.

    As a purely design decision you probably do not want to put the bathroom lighting on that same circuit.
  21. Using a single combined neutral and EGC to feed...

    Using a single combined neutral and EGC to feed the subpanel can have the side effect of allowing real normal neutral current to flow in EGCs in other parts of the site.
    This will make it...
  22. Replies
    31$$
    Views
    1,037

    In a three phase delta system it is possible for...

    In a three phase delta system it is possible for third harmonic load currents to be handled as circulating currents within the delta windings and so have no effect on the current or voltage at the...
  23. Replies
    4$$
    Views
    160

    Better high temperature behavior of that...

    Better high temperature behavior of that insulation type?
    Lobbying from the manufacturers?
    Your guess is as good as mine since I am not very good at researching the paper trail.
  24. Replies
    12$$
    Views
    796

    The size and the percent impedance will tell you...

    The size and the percent impedance will tell you what the resistive losses are at full load.
    They will not tell you what the no load magnetizing current losses are though and that is something you...
  25. Replies
    21$$
    Views
    581

    Not trying to embarrass you but a Google search...

    Not trying to embarrass you but a Google search for site:mikeholt.com fault current calculator showed it as the first entry.
    Knowing that it is there is a lot more than half the battle in doing the...
Results 1 to 25 of 191
Page 1 of 8 1 2 3 4