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> Double storey house add db on 1st floor

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TSIce BabY
post Jan 17 2017, 09:29 PM, updated 8y ago

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My contractor say if add db on 1st floor we need to rewiring whole 1st floor existing black wire. Izit true? Why?
sonerin
post Jan 17 2017, 09:30 PM

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Depend on what you want to do with the DB
TSIce BabY
post Jan 17 2017, 09:38 PM

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QUOTE(sonerin @ Jan 17 2017, 09:30 PM)
Depend on what you want to do with the DB
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Pull a thick wire from ground floor db to 1st floor db, And from 1st floor db pull new wiring for new points such as 13A, Aircond and light. Im not really good in electric explanation.
goohtj
post Jan 17 2017, 10:41 PM

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2 thick wires [L, N] to new db
then start organizing .
all upstair points goes to new db. aircon/wheater/plug /light etc.
downstair db control all the downstair point [oven/wmachine/aircon/plug /fridge/light/alarm/ autogate etc]

Richard
post Jan 17 2017, 10:50 PM

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QUOTE(Ice BabY @ Jan 17 2017, 09:38 PM)
Pull a thick wire from ground floor db to 1st floor db, And from 1st floor db pull new wiring for new points such as 13A, Aircond and light. Im not really good in electric explanation.
*
Yes..

btw he the same guy you paid the 3k deposit?
TSIce BabY
post Jan 17 2017, 11:37 PM

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QUOTE(Richard @ Jan 17 2017, 10:50 PM)
Yes..

btw he the same guy you paid the 3k deposit?
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My other contractor told me if new db will need to rewire all existing black wire.. but need to hack all existing black wire or what?
Eleganz Concept
post Jan 17 2017, 11:51 PM

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When you doing new DB, mean the whole thing will going to re-wire to the new DB for 1st floor, i think not only black. By that, you not really need to hack out the old wire which is actually nearly impossible because you not really know how the wire run in the last time, what you need to do is directly pull new wire
albatross
post Jan 18 2017, 12:16 AM

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Yes your contractor is right.

Live, Neutral will have to come from the 1st floor DB box.

» Click to show Spoiler - click again to hide... «

Richard
post Jan 18 2017, 12:53 AM

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QUOTE(Ice BabY @ Jan 17 2017, 11:37 PM)
My other contractor told me if new db will need to rewire all existing black wire.. but need to hack all existing black wire or what?
*
No need to hack.. rewire from existing first point to the new DB also can.. Maybe hack a little ..

Its because the new RCD will need to have same current (Amps) from Live to Neutral otherwise it'll trip..



 

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