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03-02-2013, 12:42 PM
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#16
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Member
Join Date: Jun 2012
Location: Northern Calif.
Posts: 468
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Transfer switch question.
How many more years are you trying to get out of those 40 year old breakers ? 60-70 bucks would replace them all.
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03-02-2013, 01:03 PM
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#17
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Licensed Electrician
Join Date: Mar 2012
Location: SE Wisconsin
Posts: 3,230
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Transfer switch question.
Quote:
Originally Posted by Oso954
How many more years are you trying to get out of those 40 year old breakers ? 60-70 bucks would replace them all.
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What's wrong with them?
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Location...Location...Location
Answers based on the National Electric Code. Always check local amendments.
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03-02-2013, 01:17 PM
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#18
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Member
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,746
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Transfer switch question.
If you have a panel with multiple small transfer switches and you connect up a multiwire branch circuit to two of those little transfer switches and one of them is set to generator power and the other is set to utility power and there is a 240 volt appliance on the MWBC then it is possible to feed generator power up into the utility lines.
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The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
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03-02-2013, 01:23 PM
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#19
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Newbie
Join Date: Mar 2013
Posts: 6
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Transfer switch question.
Quote:
Originally Posted by NJMarine
I answered that in my first post.
You would could install a handle tie on the circuit breakers at positions a&b or intall a 2 pole breaker. The relaince handle tie is connect to the corresponding section in GEN- OFF-Line section.
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I guess what I find the confusing point (and I totally blame myself for this) is it seems you are saying I need a handle tie on the breakers in position A & B for both the circuit breakers and the Gen-Off-ON part of the transfer switch.
I'm thinking since the shared neutral circuit breakers in the service panel are not tied together...then that configuration should be duplicated in the transfer switch...two separate A & B breakers (no ties) below and the Gen-Off-Line switch above (A & B position) is the only part handle tied.
If I am wrong here please explain why so I can get a clearer understanding.
Thanks,
Bob
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03-02-2013, 03:24 PM
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#20
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Member
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 6,746
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Transfer switch question.
The purpose of the handle tie for the panel breaker for the multiwire branch circuit is so that someone working on the circuit does not flip off one breaker and forget to flip off the other and the work area and neutral are still live.
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The disadvantages of crab apple trees. In summer, the apples are too sour to pick and eat. In winter the birds come and leave dropping all over the place.
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03-02-2013, 04:52 PM
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#21
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,713
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Transfer switch question.
Quote:
Originally Posted by Adster
That's exactly what the manufacturers instructions say to do. My only area of fuzziness that I need clarification on is the handle tie. It goes on the Gen-Off-Line upper section of the transfer switch...right?
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It would go on the transfer switch, and you would need to put a tie on the breakers also if you are using their single pole breakers for a 240 volt circuit.
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03-02-2013, 07:24 PM
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#22
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UAW SKILLED TRADES
Join Date: Jan 2007
Location: Kansas
Posts: 4,584
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Transfer switch question.
Off subject ... but something is bugging me about the panel guts ? I thought the older tan CH panels had a notched rail and were the same color as the can ?
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" One nice thing about the NEC articles ... you have lots of choices"
Stubbie
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03-02-2013, 08:13 PM
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#23
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,713
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Transfer switch question.
Quote:
Originally Posted by Stubbie
Off subject ... but something is bugging me about the panel guts ? I thought the older tan CH panels had a notched rail and were the same color as the can ?
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Can't say. I can't remember the color of my girl friends eyes half the time. LOL
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03-02-2013, 09:02 PM
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#24
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Electrical Enthusiast
Join Date: Jan 2013
Posts: 326
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Transfer switch question.
Another off subject...(sorry) What exactly are those cloth-covered conductors in the panel? With the house being from 1933 I was thinking knob and tube, but I see both black and white wires.
Also, I don't know that much about transfer switches, but I would think that you would need to use a handle-tie for the two MWBC breakers, that way both would always be on either generator or utility power at the same time. Is this correct or am I totally off?
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03-02-2013, 09:04 PM
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#25
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An old Tradesmen
Join Date: Oct 2008
Location: PA
Posts: 18,713
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Transfer switch question.
Quote:
Originally Posted by Kyle_in_rure
Another off subject...(sorry) What exactly are those cloth-covered conductors in the panel? With the house being from 1933 I was thinking knob and tube, but I see both black and white wires.
Also, I don't know that much about transfer switches, but I would think that you would need to use a handle-tie for the two MWBC breakers, that way both would always be on either generator or utility power at the same time. Is this correct or am I totally off?
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Yep, they need to have the handle ties. The OP wa asking about that.
Not sure about those cloth insulated wires either.
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03-02-2013, 09:42 PM
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#26
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Average Joe/ex-Navy IC3
Join Date: Dec 2006
Location: Midwest - Central Illinois
Posts: 9,314
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Transfer switch question.
Quote:
Originally Posted by beenthere
Yep, they need to have the handle ties. The OP wa asking about that.
Not sure about those cloth insulated wires either.
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Most likely the OP has BX in his place, since that would date around the time, that it was used. Our place was built around 1937, and had BX in it. Still have some in areas that we have not torn into walls yet to replace it with Romex.
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