HU361 as Combiner/Disconnect [RE-wrenches]
Jeff Clearwater
clrwater at earthlink.net
Thu Jun 5 15:43:02 PDT 2003
<x-flowed>
Yes, of course. Just looking to refine our methods with the least
number of parts and to get Square D to upgrade to multiple wire
ratings. Until then any code approved combining method works - even
split bolts for that matter.
Thanks,
jc
>Jeff, why don't you just use service taps to combine
>in the disco?
>
> - Jerry
>
>--- Jeff Clearwater <clrwater at earthlink.net> wrote:
>> Hi Matt,
>>
>>
>> Yes I see your points. I was trying to get away
>> with only one line
>> to the SB by combining a the HU361 but if each lug
>> is rated for only
>> one cu landing that won't work and it defeats what I
>> was after.
>>
>> But it strikes me as very odd that a PSSB breaker
>> can be rated to two
>> conductors/lug but not the nice big lugs on a HU361.
>> Any chance of
>> that rating changing? John B?
>>
>> Thanks,
>>
>> Jeff C.
>>
>>
>> >
>> >1. The Line (Array) is required to be landed on
>> the top lugs of the
>> >Disco. (Behind the arc-shield)
>>
>> My drawing was electrical not orientation - but yes
>> thanks for the
>> reminder of using the shieded side correctly.
>>
>> >
>> >2. The lugs are rated for single-conductor landing
>> only.
>> >
>> >My recommendation, at least relating to the Disco
>> at the Inverter, is to
>> >run the two "switched hots" (from the bottom lugs)
>> to the SB. The SB
>> >has 3 DC Input terminals for a reason. This is it.
>> >
>> >Regarding the use of an HU361 at dual locations, I
>> think you will find
>> >you can easily run the extra pair between
>> disconnects in the same
>> >conduit you are already installing.
>> >
>> >Try it this way:
>> >
>> >ARRAY
>> >
>> >+ from String 1
>> > + from String 2
>> >l l
>> >0 0 0
>> >
>> > ROOF Disco
>> >
>> >0 0 0
>> >l l
>> >l l
>> >l l
>> >+ + to 2nd Disco; Line 3
>> >to 2nd Disco; Line 1
>> >l l
>> >l l ________ IN CONDUIT
>> >l l
>> >
>> >
>> >+ from Roof Disco; Load 1
>> > + from Roof Disco; Load 3
>> >l l
>> >0 0 0
>> >
>> > INVERTER DISCO
>> >
>> >0 0 0
>> >l l
>> >l l
>> >l l
>> >+ + to SB DC Input
>> >to SB DC Input
>> >
>> >
>> >Hope this helps...
>> >
>> >Pray for Sun and No Tanlines!
>> >
>> >Matt Lafferty
>> >Universal Energies Institute
>> >mlafferty at universalenergies.com
>> >(916) 422-9772
>> >(916) 628-7694 Cell
>> >(916) 914-2247 Fax
>> >www.universalenergies.com
>> >
>> >- - - -
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>>
>>
>> --
>> ~~~~~~~~~~~~~
>> Jeff Clearwater
>> Village Power Design Associates
>> Sustainable Energy & Water Solutions for Home &
>> Village
>>
>> 877-SOLARVillage
>> PO Box 115
>> Boonville, CA 95415
>>
>> 61 Baker Rd
>> Shutesbury, MA 01072
>> 413-256-6777, 413-825-0372 (Fax)
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`~
>>
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>
>
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--
~~~~~~~~~~~~~
Jeff Clearwater
Village Power Design Associates
Sustainable Energy & Water Solutions for Home & Village
877-SOLARVillage
PO Box 115
Boonville, CA 95415
61 Baker Rd
Shutesbury, MA 01072
413-256-6777, 413-825-0372 (Fax)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`~
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