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Old 05-18-2010, 02:45 PM   #1
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Default Feed thru panels...

Do you guys consider one of those main breaker panels with feed thru lugs to be a "feeder tap"?....I say yes....This came up today, just curious what you guys say.

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Old 05-18-2010, 03:06 PM   #2
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That would depend on the size of the conductors that are connected to the feed through lugs.

If the conductors are rated at least the ampacity of the main breaker it would not be a feeder tap.

Chris

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Old 05-18-2010, 03:08 PM   #3
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That would depend on the size of the conductors that are connected to the feed through lugs.

If the conductors are rated at least the ampacity of the main breaker it would not be a feeder tap.

Chris
Ahhh...That makes sense...Thanks BTW, the feeder is smaller than 200 amp wire.
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Old 05-18-2010, 03:24 PM   #4
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Ahhh...That makes sense...Thanks BTW, the feeder is smaller than 200 amp wire.
If the conductors connected to the feed through lugs have a lesser ampacity then the main breaker you would need to use one of the tap rules to provide overcurrent protection for the feeder conductors.

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Old 05-18-2010, 03:29 PM   #5
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If the conductors connected to the feed through lugs have a lesser ampacity then the main breaker you would need to use one of the tap rules to provide overcurrent protection for the feeder conductors.

Chris
Yeah, it's 2/0 al protected by a 200 amp main breaker...I would have to provide OCP at the tap....I also think it's over 25 feet inside of the residence...
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Old 05-18-2010, 03:38 PM   #6
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Yeah, it's 2/0 al protected by a 200 amp main breaker...I would have to provide OCP at the tap....I also think it's over 25 feet inside of the residence...
That could be a problem.

Also remember that the tap conductors must be protected from physical damage by being installed in a raceway or by other approved means to comply with the 25 foot tap rule.
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Old 05-18-2010, 03:45 PM   #7
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That could be a problem.

Also remember that the tap conductors must be protected from physical damage by being installed in a raceway or by other approved means to comply with the 25 foot tap rule.
I'm not positive, but I believe it's over 25 feet. That's just the amount of the tap that runs inside , right?....If its say 10 feet outside and 20 feet inside am I ok?....Also, this is SER cable inside the walls...not subject to physical damage.
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Old 05-18-2010, 03:51 PM   #8
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I'm not positive, but I believe it's over 25 feet. That's just the amount of the tap that runs inside , right?....If its say 10 feet outside and 20 feet inside am I ok?....Also, this is SER cable inside the walls...not subject to physical damage.
Actually the length is the total lenght of the tap conductors from the point of origin (Feed thru lugs) to the point where it terminates at a single overcurrent protective device. It seems to me that the conductors are longer than 25 feet.

Also 240.21(B)(2)(3) is specific that the feeder be installed in a raceway or be protected from damage by other approved means. This requirement is above and beyond the typical protection from physical damage due to the fact that the conductors are not being protected by an overcurrent device at the beginning of the feeder.

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Old 05-18-2010, 03:53 PM   #9
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Actually the length is the total lenght of the tap conductors from the point of origin (Feed thru lugs) to the point where it terminates at a single overcurrent protective device. It seems to me that the conductors are longer than 25 feet.

Also 240.21(B)(2)(3) is specific that the feeder be installed in a raceway or be protected from damage by other approved means. This requirement is above and beyond the typical protection from physical damage due to the fact that the conductors are not being protected by an overcurrent device at the beginning of the feeder.

Chris
Ok, then I would say that is over 25 feet....Also, are you saying that it being installed in a raceway is mandatory?
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Old 05-18-2010, 04:00 PM   #10
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Ok, then I would say that is over 25 feet....Also, are you saying that it being installed in a raceway is mandatory?
Either install the feeder tap in a raceway or find another approved means of protecting the feeder conductors from physical damage.

Chris
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Old 05-18-2010, 04:03 PM   #11
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Either install the feeder tap in a raceway or find another approved means of protecting the feeder conductors from physical damage.

Chris
I'll probably just make it a feeder....Thanks Chris
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Old 05-18-2010, 04:07 PM   #12
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I'll probably just make it a feeder....Thanks Chris
Your very welcome.

Chris

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