ILSCO or Polaris Connectors
- Thread starter chris1971
- Start date
- Status
Not sure if this link will work from ILSCO?
https://idw.ideaservices.net/FILES/10975/PBTS INS BLK ONE SIDE TAP.PDF
https://idw.ideaservices.net/FILES/10975/PBTS INS BLK ONE SIDE TAP.PDF
tadavidson
Senior Member
- Location
- Georgia
- Occupation
- Electrical Contractor
Call a local electrician. He will be able to help you.. <grin>
:slaphead::rotflmao::rotflmao:
al hildenbrand
Senior Member
- Location
- Minnesota
- Occupation
- Electrical Contractor, Electrical Consultant, Electrical Engineer
Sure. It's basically a terminal strip that allows one conductor per terminal. The lug is designed to be compatible with either Al or Cu under each lug.
Think of the neutral bar in a breaker panel that has both Al and Cu conductors landed on it. Dissimilar metal interaction can't occur as the Al and Cu don't directly touch.
Thanks Al. That's what I was thinking because the conductors never physically touch.
peter d
Senior Member
- Location
- New England
I agree, a professional should handle this job.
FIFY....:rotflmao:
peter d
Senior Member
- Location
- New England
:roll::roll:
Spec sheet also specifies that "incoming and outgoing conductors must be staggered"........Why is this necessary and what does it really mean?????
al hildenbrand
Senior Member
- Location
- Minnesota
- Occupation
- Electrical Contractor, Electrical Consultant, Electrical Engineer
The manufacturer's requirement is a current splitting technique.
- Location
- Placerville, CA, USA
- Occupation
- Retired PV System Designer
That is, if you put all of the gazintas at one and all of the gazoutas at the other end you will have a higher current in the middle section of the strip than for any other arrangement. Same on a smaller scale wire by wire.
Sent from my XT1585 using Tapatalk
winnie
Senior Member
- Location
- Springfield, MA, USA
- Occupation
- Electric motor research
This is when you are connecting sets of parallel conductors.
If you have 3 conductors (coming from the left) in parallel being connected to 3 conductors (going to the right) in parallel, you have to alternate, left-right-left-right-left-right.
If you did left-left-left-right-right-right, then the middle of the splice would have to carry the _full_ current of the parallel sets; when you alternate the peak current in the bus bar is lower.
-Jon
peter d
Senior Member
- Location
- New England
I'm never ceased to be amazed by the nit picking that takes place here. :slaphead::slaphead:
Fulthrotl
~Autocorrect is My Worst Enema.~
- Occupation
- E
.
yep. no dissimilar materials touching.
hypress with dual listed lugs is even spiffier,
with heat shrink over it. no loosey goosey,
tightey righty.
Then you should stop doing it.:thumbsup::rotflmao::thumbsup:
This is still not making sense to me. It is a piece of very conductive metal which is also a heat conductor.
- Location
- Massachusetts
So is a copper wire but you still need enough of it to carry a given load.
al hildenbrand
Senior Member
- Location
- Minnesota
- Occupation
- Electrical Contractor, Electrical Consultant, Electrical Engineer
Consider the three terminal Ilsco shown in the photo above in this thread. Put 200 A into the center lug and take 100 A out off the left right lugs. The current between lugs is "split" and is not greater than 100 A.
Compare that to 200 A in the LEFT lug and a 100 A out of the middle and right lugs. The current between the LEFT lug and the middle lug is 200 A.
The heat created is I squared R, which means the heat in the section of terminal bar with 200 A is FOUR TIMES greater than the 100A section.
The manufacturer is saying"Don't do that!"
Tapatalk
Compare that to 200 A in the LEFT lug and a 100 A out of the middle and right lugs. The current between the LEFT lug and the middle lug is 200 A.
The heat created is I squared R, which means the heat in the section of terminal bar with 200 A is FOUR TIMES greater than the 100A section.
The manufacturer is saying"Don't do that!"
Tapatalk
Thank you.
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