I believe you like to concealed the wiring rather expose it with trunking. The contractor just need to chisel the wall for the trunking.

This 1 you need to ask the electrician.

Of course it is possible to have another DB box in kitchen or anywhere.

For the cost, you have to do the calculation. Many wire running to the kitchen vs 1bigger wire + DB cost.

This post has been edited by ozak: Nov 21 2013, 11:56 AM

If you don't use 4 all the time, why buy 4 zone. Buy 3 or 2 zones better. There are hob that are wider even with 2 zones.

Like I mentioned before, cost, ergonomic design, brand are some of the factors in my purchasing decision.

Eg; a 2 zone hob is around 1k++ to 2k+ price range depending on the brand but the zones are spaced too closely for some types and cooking is harder with cookware side by side. I have 1 such type at my current place now. You seldom would see any people selling 2 zone hobs doing a demo on both zones at the same time?

For those with wider spacing. the cost is somewhere between 2.5k to 3k+ range. Same for induction hobs except the price is higher.

In any case, I already purchased my hob and I'd like to think my purchase is a decent buy for the selling price and the ergonomic design.


This post has been edited by S'aimer: Nov 21 2013, 12:18 PM

If the cost not much diff, I would rather choose to hav another DB box at kitchen, no need to hack...

Possible cheaper too. If the wire cost is different a lot. It is left the workmanship cost.

So, means that there will be one thicker wire run from the original DB box to the new DB box?
Or, else where shld the input for the new DB box? FYI, my house is using underground cables by TNB...

You need two thick wires for live and neutral, one earth, and use 4mm for earth to reduce the resistance.

weikee,

then, the 4mm wire sufficient for kitchen usage?

i am planning to hav:
1) one induction hob (2600W max)
2) Fridge
3) Microwave oven (small scale like 17 lt)
4) Electric oven (small scale also)
5) Exhaust fan, lighting (T5 x 2)
6) Washing machine.
7) Rice cooker
8) Slow cooker

Only one pair of 4mm, nope, better use at least 3 direct from fuse box, minimal 2.5mm is sufficient. Hob to be independent, the rest can evenly share out. Light & exhaust fan (unless you using industrial exhaust fan) are from another light mcb, not from the socket.

I was told by the electrician that a 2.5mm cable is sufficient up to 20amp while 4mm cable is up to 25amp..

A search on the Internet does say so: http://www.diynot.com/pages/el/el004.php

Should I go just for 2.5mm standard? He is charging RM 180 for 2.5mm and RM 380 for 4mm... I need to pull 3 of such wirings...

any good wireman/electrician that is good in service with good pricing around PJ area?

4mm rm380 is really cut throat, i think your wireman is trying to discourage you to use the 4mm.

most wireman hardly carry 4mm i guess. anyway cost of 2.5mm per meter length material is around rm1.80-2.00 while 4.0mm is rm3.2-3.5.

generally in concealed environment 2.5mm is rated for 15A and 4.00m is 25A.

says now I ask the electrician to use 4mm cable for both my hobs... As these two are adjacent, one in wet and one in dry... How do I know if he really pulls 2 wires to it?

Testing by using circuit breaker?

Yes, and hope he also pull two neutral.

One neutral for each hob? How do I know if he pulls 2?

Anyway, one MCB is for one set of wiring of which all connected devices are wired to this set of wire?

You won't know, have to trust him.

Yes, one MCB for one set, if you trip your MCB and 5 power socket got no power, that mean one MCB are loop to 5 power points.

Hi Weikee, btw, what do you mean by pulling two neutral actually? Are you saying one hob/oven point require two wires to the neutral point?

Every independent point need independent Live and Neutral. Ground can be share.

Then you two neutral points mean what? For both my hob?

I got another guy to quote.

He will use 4mm cable for live and neutral, while the earth is 2.5mm... Is this ok? Each point will be pull from DB and has one independent MCB.

Are you saying this neutral to be shared between the 2 hobs?