Hi Guys,
So i have this question that i find is quite confusing among installers.
Can you put a positive busbar(s) in your db?
See image attached.
Hi Guys,
So i have this question that i find is quite confusing among installers.
Can you put a positive busbar(s) in your db?
See image attached.
You get these, and others, for connecting the positives.
… less wiring I presume.
@TheTerribleTriplet, i agree,
Sorry for not making the question more clearer.
There is 4 change overs in the DB, so each Change over need 2 pos and 2 negs. Hence the question about the Positive busbar in the DB.
Do you mean a LIVE busbar? Because this is AC. Positive makes no sense.
I’ve seen DIN-mount assemblies with three phase busbars. If you’re allowed to put the three hot supplies on busbars, I presume you can put any one of them on a busbar. A quick perusal of SANS10142 seems to say only that modifying a DB should not allow busbars to come into contact with parts of the board that should be safe.
I far prefer DIN-rail terminal blocks though, and you get terminal blocks as well that have a plastic cover, or even distribution blocks that makes it neat and safe.
Thanks @plonkster, yes thats what i mean, Live, Positive, die rooi kabel man, die rooi kabel!!
I think you are spot in. Distribution block make more sense, as it is safer, and more isolated. No accidental contact.
Thank you.
In three phase DB’s its pretty normal to use Live busbars, but those must be “Enclosed” Either by locking the DB, or covering the Busbars with a Perspex cover. You must do everything you can from preventing somebody touching it.
The regulations say that no live part part in a domestic installation might be touched with a “Standard test finger” . In your picture above, both live busbars can be touched. I wont do it like that.
When I need to install a live busbar, I use one with covers. I dont like doing it, but can see no problem with it. As long as its safe. I cant find pictures of the one I normally use, but its looks something like this.
are those from Frontline?
Frontline orders from Electromecanica so yes you can get from them.