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Type: Posts; User: templdl

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  1. Replies
    3$$
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    145

    What are you trying to do, do an in phase...

    What are you trying to do, do an in phase transfer? What are the sources? For what reason are you concerned or is this hypothetical?
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    21$$
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    725

    Does neatness count?

    Does neatness count?
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    4$$
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    172

    Have you considered an LED product?

    Have you considered an LED product?
  4. Sounds to me that you are on the receiving end of...

    Sounds to me that you are on the receiving end of a slightly out of phase transfer. When there is a transfer from one source to another the must be synchronized in phase and if not you will get a...
  5. Replies
    45$$
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    1,046

    I think that we beat this up pretty bad so let's...

    I think that we beat this up pretty bad so let's put it bed.
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    45$$
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    1,046

    If the AJH approves the protect that's all that's...

    If the AJH approves the protect that's all that's needed. Sometime to know too much can be a negative to defy fact reason and logic as to what is reasonable.
  7. Replies
    45$$
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    1,046

    That's my point exactly. Unless specific numbers...

    That's my point exactly. Unless specific numbers are used though to review and make conclusions from, everything else is like shooting at shadows at best. We both may be of the same opinion that...
  8. Replies
    45$$
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    1,046

    Yes, but provide an actual real life load example...

    Yes, but provide an actual real life load example and then evaluate the installation. Opinions so far have not provided anything based upon an actual load. If you have a 600a breaker where the normal...
  9. Replies
    45$$
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    1,046

    It may be appropriate to establish what an...

    It may be appropriate to establish what an anticipated load would be and then see what affect that would have on the various configurations. One would also consider if it is a continuous or non...
  10. Replies
    45$$
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    1,046

    Are you getting into theory or an actual...

    Are you getting into theory or an actual application?
    Should you or others find a need for deviation from the 4' length I would think it would be doable should one go through the expense for testing...
  11. Replies
    45$$
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    1,046

    I believe the objective is that the wire doesn' t...

    I believe the objective is that the wire doesn' t add to the heating of a breaker as the wire is said to be a heat sink. As such the objective then would be that the breaker respond as designed and...
  12. Replies
    45$$
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    1,046

    I believe we made the point in that there is more...

    I believe we made the point in that there is more to making a transition. Without this additional info one could conclude that a transition could be made at any distance as soon as practical from the...
  13. Replies
    45$$
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    1,046

    I looked at my copy of NEMA AB4 and it states the...

    I looked at my copy of NEMA AB4 and it states the length to be 4'. As such I would have to conclude that any transition that is made is OK as long as it isn't made within 4' of a breaker. Other...
  14. Replies
    29$$
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    986

    we get stuff crammed in lawn and garden equipment also.if

    Awesome! In my semiretirement I am now helping a very close friend of mine build his small engine business. It is not all that uncommon to find a mouse nest built is riding lawn mowers and even more...
  15. Replies
    45$$
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    1,046

    That makes sense. However, at what length from...

    That makes sense. However, at what length from the 75degC termination is it allowable to make the transition? Breakers for example are tested by using strict testing requirements including the use of...
  16. Replies
    5$$
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    339

    I think you hit the mail right on the head. When...

    I think you hit the mail right on the head. When the termination is compromised it will start getting warm. When the load goes away or is reduced it cools. The heating caused expansion then the...
  17. Replies
    45$$
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    1,046

    You are correct when I overlooked adding that...

    You are correct when I overlooked adding that note. When sizing the wire it is based upon not 100%+125% as you would with a common 80% rated breaker but 100%+100% which gives one an opportunity to...
  18. Replies
    45$$
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    1,046

    Are you referring to a 100% rated breaker? If I...

    Are you referring to a 100% rated breaker?
    If I remember correctly when the UL489 breaker is listed for application to 100% rating yes the enclosure must be suitable for application at 100% in...
  19. Thread: Eaton Recall

    by templdl
    Replies
    6$$
    Views
    446

    Just as I suspected. Would this have been...

    Just as I suspected. Would this have been assembled by a satilite facility in that part on the country or at the main msnufacturing plant.
    If this was an engineering design issue to begin with then...
  20. Replies
    45$$
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    1,046

    Would the question now be is this a molded case...

    Would the question now be is this a molded case beaker which to my knowledge 2500a is the largest or a power breaker?
  21. Replies
    45$$
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    1,046

    Interesting leading question not knowing the rest...

    Interesting leading question not knowing the rest of the story. Are you implying that you want to use 90, degC rated wire and apply it at 90degC? Even so you must keep one thing in mind that the...
  22. Thread: Eaton Recall

    by templdl
    Replies
    6$$
    Views
    446

    What appears to have been describe is some sort...

    What appears to have been describe is some sort of a dead front cover issue which is intended to protect the user from contacting live parts. There is a test that is performed using a rod/probe that...
  23. That reminds of a pump OEM of mine that provided...

    That reminds of a pump OEM of mine that provided pumping systems for municipalities. They took my soft starter and accessed a point in the circuitboard so that they could accelerate the centrifugal...
  24. Is there a reason that the voltage was omitted?...

    Is there a reason that the voltage was omitted? One would "assume" that it is 120v which a boat load of amperes, almost 46a. As such would it be 240v which wouldbe about 23a? There would be no issue...
  25. Replies
    12$$
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    580

    Silver vs tin plating is an interesting subject....

    Silver vs tin plating is an interesting subject. Silver of course is a more expensive plating but often times the plating may not be thick enough to combat corrosion. A silver flash plating is used...
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