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  1. Replies
    31$$
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    1,020

    They sometimes call this process "differential...

    They sometimes call this process "differential diagnosis". Doctors are expected to express some kind of diagnosis, so they rule out as many as possible using objective criteria until they are left...
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    31$$
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    1,020

    How did he get shocked? Employees are required to...

    How did he get shocked? Employees are required to wear insulating gloves when exposed to hazardous voltages. Was he not wearing his gloves? If so, he should probably be appropriately disciplined IAW...
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    36$$
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    889

    The cynic in me says it is more likely that some...

    The cynic in me says it is more likely that some kind of collusion is responsible for numbers that close. :)
  4. Replies
    36$$
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    889

    we have a winner!

    we have a winner!
  5. The obvious answer is that there is no NEC or...

    The obvious answer is that there is no NEC or OSHA requirement that I am aware of that would require this.

    The longer answer is that if the company actually has a safety rule that says this is...
  6. The 125% thing is not a minimum. You can make it...

    The 125% thing is not a minimum. You can make it 2% if you want. Might not be practical, but would meet code requirements.

    There is a break even point where CBs are usually more cost effective...
  7. a fair number of 50VA xfmrs will be class 2 power...

    a fair number of 50VA xfmrs will be class 2 power sources and may well be internally protected thus not needing any secondary OCPD.

    I think more information is needed for the details but I don't...
  8. of course UL is also on record as saying it does...

    of course UL is also on record as saying it does not apply in the case of replacement breakers.
  9. Replies
    27$$
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    536

    I am generally inclined to agree with you....

    I am generally inclined to agree with you. however, many 230V 3 phase motors are labeled for 208V. If this one is not, it may be a simple mater to just replace the motor.
  10. There seems to be a mistaken impression that all...

    There seems to be a mistaken impression that all manufacturer's instructions are covered by 110.3(B). Clearly the actual wording of the provision precludes this interpretation.

    The manufacturer...
  11. It is just a rule in the code. IMO, the old...

    It is just a rule in the code.

    IMO, the old cloth covered conductors are probably somewhat of a hazard after all these years, and I would be inclined to rip them out and start over.
  12. Replies
    8$$
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    364

    A tripped CB is not supposed to be reset until...

    A tripped CB is not supposed to be reset until after it has been determined why it tripped and the cause corrected.

    Just because someone saw a "spark" does not mean there was a dead short.

    If...
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    19$$
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    547

    The higher the voltage, the lower the current for...

    The higher the voltage, the lower the current for the same amount of power.

    DC is more efficient than AC.

    I think like a lot of other things, voltages were just chosen because they were...
  14. Replies
    5$$
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    291

    have you considered calling tech support and...

    have you considered calling tech support and asking them?
  15. Replies
    5$$
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    245

    The way I read it is this. You can replace the...

    The way I read it is this.

    You can replace the receptacle with:

    a non grounding type receptacle
    or
    a GFCI receptacle
    or
    a grounding receptacle supplied by a GFCI.
  16. Replies
    27$$
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    536

    If it is not rated for 208V, you can still try...

    If it is not rated for 208V, you can still try and run it at 208V but the motor may fail prematurely.

    IMO your best options are to get the right motor for the voltage you have or to change the...
  17. Replies
    4$$
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    249

    Cut out a big chunk and then install a plate...

    Cut out a big chunk and then install a plate where the new big cutout is and put the new cutout in the plate.
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    14$$
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    480

    TUV is a qualified NRTL. They are allowed to...

    TUV is a qualified NRTL. They are allowed to field inspect things built by third parties not authorized to apply the label and label them.

    My inclination is to do what they want so they will put...
  19. Replies
    2$$
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    229

    we use them sometimes. they work pretty good if...

    we use them sometimes. they work pretty good if you need to bond a bunch of shielded cables that have no drain wire. the ones we use have a ring of solder and a drain wire coming out of them.
  20. Replies
    14$$
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    480

    If by "pre-checked" you mean TUV will be...

    If by "pre-checked" you mean TUV will be inspecting it and applying a UL label signifying it meets UL508a requirements, than you should be good to go.

    While some people argue the semantics, the...
  21. Replies
    15$$
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    567

    what the other guys said. there are forms you...

    what the other guys said.

    there are forms you can find on the Internet to document what you did.

    most cases of common conductors under normal circumstances if a conductor has an issue it will...
  22. Replies
    7$$
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    356

    You can use an enclosure for anything it is...

    You can use an enclosure for anything it is suitable for.

    Pull boxes are required to be of a certain size to allow for conductor bending (among other things).

    I don't think there are any...
  23. Replies
    7$$
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    356

    At one time, there was no requirement that...

    At one time, there was no requirement that enclosures be listed at all. NEMA standards were not designed around any kind of listing. They were just standards NEMA created and manufacturers used and...
  24. Replies
    5$$
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    276

    I don't see it as a wet location. It is no more a...

    I don't see it as a wet location. It is no more a wet location than an attic is until a storm tears off the roof.

    However, I took a quick look at article 695 and it appears that pump wiring can...
  25. Replies
    16$$
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    449

    I took a look in art 410 and could not find such...

    I took a look in art 410 and could not find such an exception.

    There is an exception in art 225 that I mentioned earlier that allows the disconnecting means to be remote.
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