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 Wiring 1.5mm, 2.5mm, 4mm., How to choose?

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idoblu
post May 19 2014, 08:54 PM

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how about the wire that is attached to your oven or hob? they dont look 4mm to me
idoblu
post May 19 2014, 09:43 PM

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QUOTE(chinkw1 @ May 19 2014, 09:37 PM)
I heard 2.5mm got 3core or 7core. 7core wire can stand higher Amp.
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Ok thanks, tomorrow I will take another look at it

idoblu
post May 20 2014, 08:59 AM

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this came out from my induction hob rated 6.4kw
user posted image


my oven rated 3.6kw, the wires looks like ordinary ones (no pics sorry)

This post has been edited by idoblu: May 20 2014, 09:57 AM
idoblu
post May 20 2014, 09:53 AM

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QUOTE(weikee @ May 20 2014, 09:20 AM)
3.6KW is at the threshold of the normal socket can support. If you not install it correctly and having a loose end you may end up blowing or burning the socket.
If you search, few users having burned socket after using it for sometime. One recent example

https://forum.lowyat.net/index.php?showtopic=3191958
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the reason why the oven came with, I suspect the smaller 2.5mm wires, is because the oven cannot actually use 3.6kw at any one time. these ovens have several separate elements like top heat, bottom heat etc
and you can only use a combination of it, not all. unfortunately the manufacturer always quote "maximum power" but not "maximum operating power"
see the pic below -
user posted image


the hob, Im more worried about.smile.gif
even though it is rated 6.4kw, that is with all 3 burners going full blast which rarely happens.
further more, these hobs are unlike kettles, they dont continuously use power. they turn on and off and on again to maintain that temperature
you can see this with those ceramic cooktop, they glow on and off periodically
still i will have to see that it gets a thicker wire during installation

btw usually what size are those wires inside the 3 pin socket to the MCB?

This post has been edited by idoblu: May 20 2014, 09:56 AM
idoblu
post May 20 2014, 10:46 AM

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really headache..... rclxub.gif sad.gif
idoblu
post May 20 2014, 11:00 AM

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QUOTE(ozak @ May 20 2014, 10:59 AM)
6.4Kw !  sweat.gif  I think you need industrial type socket and termination liau. How many ring are this cooker have?

My advice, Don't use socket. But cable lug, terminal block and junction box to secure the joining. It is more than good enough for such high watt. For switching ON/OFF, get a Schneider 32A or 40A 250V 1 gang double pole switch with neon.

For wiring, pull direct from DB box, 6mm size wire or higher. If you want to save some bill using.
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3 rings nia sweat.gif

do i need something like this laugh.gif
user posted image

This post has been edited by idoblu: May 20 2014, 11:03 AM
idoblu
post May 20 2014, 11:04 AM

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QUOTE(weikee @ May 20 2014, 11:03 AM)
Everything you do a Chinese style cooking, TNB will be very happy.
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im going to tarp sek
the cooktop is for show only rclxms.gif

idoblu
post May 20 2014, 11:19 AM

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QUOTE(ozak @ May 20 2014, 11:15 AM)
This switch remember me back the Frankenstein movie.  biggrin.gif

No need that hardcore lah. This switch can handle 60A! And you don't want your nice kitchen look like laboratory.

Just follow my above suggest.

By the way, if your kitchen equipment all using such a high watt, better separate a DB box for the kitchen. If not, many thick wire long running along your house. Pull a thick wire size 10mm or more L, N and E from the big fuse. Install a DB box in the kitchen with MCB and RCCB. Than you can pull any wire to whatever kitchen equipment you want. This should save your wiring cost.
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good idea! thank you thumbup.gif
idoblu
post May 20 2014, 11:54 AM

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QUOTE(ozak @ May 20 2014, 11:48 AM)
Why you get a high watt cooker ? Open restaurant or what ? biggrin.gif

Forget to tell, your induction have a fan below right? So better the kitchen cabinet below to have some ventilation hole. It help to cool down faster and able to hear the fan noise running. Cause you can't switch OFF immediately after cook.
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but this one nothing special, they are all the same wattage wan.... i thought its just biasa only sad.gif

user posted image

got two fans at the bottom.

idoblu
post May 20 2014, 12:15 PM

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QUOTE(ozak @ May 20 2014, 12:08 PM)
You see that some grill hole slot along. That is air intake. While the 2 fan blow out. Guess your fan will be face inside?

So your ventilation hole have top (air in) and bottom (air out) at the cabinet door and nothing to block it.
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noted. yes I think the fans are at the back. i intend to put nothing underneath it

Last time, I had a cutlery drawer underneath my gas stove.
bad idea, somehow that drawer always stinks of some weird smell....yucks

This post has been edited by idoblu: May 20 2014, 12:20 PM

 

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