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Type: Posts; User: kwired

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  1. Replies
    12$$
    Views
    317

    There have been many incidents in the past where...

    There have been many incidents in the past where an outside/underground gas line was damaged in some way and gas finds a way into a building and causes explosion incident.

    That gas can follow the...
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    6$$
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    166

    You need to talk to the inside salesman or other...

    You need to talk to the inside salesman or other expert they may have for certain product lines. Average counter guy doesn't always know much and sometimes having a catalog number is best way to get...
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    11$$
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    287

    Do you think it is a good idea to run such long...

    Do you think it is a good idea to run such long length of 400 amp conductors inside your building with 1600 amps of overcurrent protection ahead of them?

    Put in fused disconnect and eliminate the...
  4. Replies
    11$$
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    429

    since it has 460 volt rated heater, chance is...

    since it has 460 volt rated heater, chance is good the DC is rectified from 480/277 system, wouldn't DC from 277 be closer to 240 volts?

    Is strange that field rating is a different voltage though....
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    2$$
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    145

    For a small single phase service as the permanent...

    For a small single phase service as the permanent service- quite often you might get the permanent transformer and even permanent supply conductors in some cases.

    Other places you may have temp...
  6. Replies
    11$$
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    287

    If outside the NF disconnect isn't really needed...

    If outside the NF disconnect isn't really needed code wise.
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    12$$
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    302

    If there is any kind of bid deadline, maybe you...

    If there is any kind of bid deadline, maybe you can wait until deadline is very close before submitting the bid. Won't guarantee anything, but at least has potential to reduce such activity.

    Be...
  8. Wireless can work great for controls, not so...

    Wireless can work great for controls, not so great for the power circuit.
  9. Replies
    12$$
    Views
    395

    If not we wouldn't be able to use them for...

    If not we wouldn't be able to use them for feeders or MWBC's where the load isn't guaranteed to be balanced between poles at all times.
  10. Replies
    63$$
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    5,152

    I agree. If you have wye configured loads...

    I agree.

    If you have wye configured loads (many common smaller 9 lead motors are wye connected) and happen to have a ground connection to the wye point (intentional or not) you will have...
  11. Replies
    11$$
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    371

    Quality of the rewind could possibly reflect that...

    Quality of the rewind could possibly reflect that as well, just beware.
  12. Replies
    27$$
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    917

    Kind of what I was assuming any POCO would mean...

    Kind of what I was assuming any POCO would mean when they say "customer"- how many "meters" are effected.

    Knowing what size of a transformer might supply a certain number of customers - some...
  13. Replies
    27$$
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    917

    Another problem is how things tie together and...

    Another problem is how things tie together and what may be automatically transferred when something fails. The further upstream you go into distribution the more customers will normally be impacted...
  14. Exactly, at very least you will have to pull the...

    Exactly, at very least you will have to pull the weight of the conductors. Likely will be more friction within 3000 feet of pipe than the smaller surface area of that pallet with the reels on it.
  15. Replies
    12$$
    Views
    395

    You could run a MWBC with no load connected to...

    You could run a MWBC with no load connected to one of the poles - still sort of have same thing as far as the breaker is concerned.
  16. Replies
    27$$
    Views
    917

    Exactly. Presuming that mostly means how many...

    Exactly. Presuming that mostly means how many metered services are out. How many small apartments are there with fairly limited load in NYC and one meter on the system? How many small businesses with...
  17. Replies
    1$$
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    141

    I see nothing in 215 that would prohibit this,...

    I see nothing in 215 that would prohibit this, can't think of anywhere else such rule would be if it exists.

    Service conductors can't pass through another building/occupancy.

    Might be some...
  18. Thread: DW cord

    by kwired
    Replies
    2$$
    Views
    256

    Did you read 422.16? Years back NEC used to...

    Did you read 422.16?

    Years back NEC used to tell us certain cord types that were acceptable, now it mostly says "identified as suitable in the installation instructions" for what kind of cord can...
  19. Replies
    10$$
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    357

    Well AFAIK you are an inspector, I think you know...

    Well AFAIK you are an inspector, I think you know what you are supposed to enforce (whether you agree with what is written or not).

    You likely also know it may be a PITA for the contractor and/or...
  20. Replies
    11$$
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    463

    Eaton CH breakers trip to off position, probably...

    Eaton CH breakers trip to off position, probably built with similar or even same mechanism.
  21. Replies
    16$$
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    673

    Instead of tearing up $10k of landscaping, hire a...

    Instead of tearing up $10k of landscaping, hire a directional boring contractor to install a straighter run, or route it to a place where you can put a pull/junction box if they can't get it...
  22. Replies
    3$$
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    147

    If they are from different systems it is possible...

    If they are from different systems it is possible they could have more than 300 volts between systems. If it is a 240 volt circuit and a 120 volt circuit from the same (120/240 volt) source they will...
  23. Replies
    25$$
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    705

    Unless you have access to transformer secondary...

    Unless you have access to transformer secondary terminals to connect test leads there, you are somewhat limited to only testing for voltage drop on the grounded neutral conductor.

    One other...
  24. Replies
    2$$
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    159

    Since this is a multiple occupancy building you...

    Since this is a multiple occupancy building you may be allowed to have more than one service to the building, typically a service disconnecting means in/at each occupancy is how that is done.
    ...
  25. Replies
    11$$
    Views
    371

    for only 5 HP motor most ways of dealing with the...

    for only 5 HP motor most ways of dealing with the problem cost just as much if not more than getting a different motor rated for the voltage. If it is a special design motor that would be difficult...
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