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Isan Farang

Running Mains Electric Cable

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59 minutes ago, bankruatsteve said:

Water heaters?  Water pumps?  Ovens?  Swimming pool?

Water Heater ? - Hot water shower

Water Pump - Mitsu as in picture

Oven & Swimming Pool - not required

84099466-bangkok-thailand-december-22-2016-the-mitsubishi-automatic-water-pump-over-white-background-mitsubis[1].jpg

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I think you'll be OK on a 15/45 single-phase provided you can keep the volt drop under control.

 

Most of us have similar supples and rather larger homes. Just don't run your 8kW (I would go for 6kW) water heater (or is that two), both aircons and then do some welding.

 

We have taken our 15/45 past 63A on occasion (briefly), it has not entered low earth orbit.

 

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16 minutes ago, eyecatcher said:

It may have been touched upon above but the standard cheap aluminium core nains cable must be kept above 2.4m high or buried.

if you want a cable running on a boundary wall then it must be replaced with copper core.

I have left a space between the land fill and slot in section, so i will check if i can go under the final fill level, this run is around 46m and then i have to go along the back wall (half way) around 18m

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18 hours ago, Crossy said:

For 70m you are definitely going to need 16mm2 cable if you go copper, aluminium cable is a lot cheaper but you'll need 25mm2 minimum, 35mm2 would be better. Do note that aluminium isn't allowed underground.

 

There's no reason why you shouldn't build a pump house, garage, whatever and run the incoming supply there, if you put your main breaker in that room you have a handy way of isolating your entire supply.

 

 

 

15 hours ago, eyecatcher said:

It may have been touched upon above but the standard cheap aluminium core nains cable must be kept above 2.4m high or buried.

if you want a cable running on a boundary wall then it must be replaced with copper core.

So, which is it, can aluminium be buried or not?

 

Sophon

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8 minutes ago, Sophon said:

So, which is it, can aluminium be buried or not?

 

Our local PEA say aluminium cable can absolutely NOT be buried in a domestic situation, things may be different for industrial mind.

 

Also Bangkok Cable do not appear to do an aluminium version of NYY. The only LV aluminium cables available are;-

  • NAY which is specified as a PEA drop cable.
  • THW-A & AWV which are both LV overhead.

 

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19 minutes ago, Sophon said:

 

So, which is it, can aluminium be buried or not?

 

Sophon

Both....oh, seems I am wrong, my spark did say they can be buried if they are ducted. 

but if this is a no no.....sorry

Edited by eyecatcher

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17 minutes ago, eyecatcher said:

Both....oh, seems I am wrong, my spark did say they can be buried if they are ducted. 

but if this is a no no.....sorry

NYY cable is available for Al but maybe not in Thailand. (?)

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Just now, bankruatsteve said:

NYY cable is available for Al but maybe not in Thailand. (?)

 

It's not available from the Thai sources I've checked, admittedly not all of them.

 

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On ‎5‎/‎13‎/‎2019 at 10:31 AM, Crossy said:

 

It's not available from the Thai sources I've checked, admittedly not all of them.

 

Just a quick update on my cable run, the electric man has now completed the under ground cable run and connected to the meter, I also placed all the PVC water pipe before the CPAC was poured

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On 5/10/2020 at 9:08 AM, Isan Farang said:

Just a quick update on my cable run, the electric man has now completed the under ground cable run and connected to the meter, I also placed all the PVC water pipe before the CPAC was poured

 

 

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That "residential" CU seem rather open to the elements.

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9 minutes ago, RichCor said:

That "residential" CU seem rather open to the elements.

 

Indeed, I would have given it an outer box.

 

In reality it will probably be just fine, it's under a roof and protected from blown rain by the fence.

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Posted (edited)
10 minutes ago, Crossy said:

 

Indeed, I would have given it an outer box.

 

In reality it will probably be just fine, it's under a roof and protected from blown rain by the fence.

Humm I don’t think that you have seen the horizontal gale force  blown rain we get in this area. Also that fence isn’t close, probably about 2 metres back.

 

Unless there’s significant protection that is not visible, or going to be put in later, I’d put money on the insides of all those boxes getting somewhere between damp and soaking wet during the rainy season.

Edited by sometimewoodworker
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I'm concerned about the fail safes of any electrical near water, especially if it's mains electrical delivered straight from the pole with the meter being the only source of potential cut off from whatever the pole connection can deliver.

 

If this is a 'sub' protected by an upstream RCD then it's less cringe-worthy.

 

 

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Given IP rating is IP4X - zero moisture protection. Anything more than light blown rain may be an issue.

 

I thought it was an all-plastic box, but it seems not.

 

It does need a outer box.

 

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31 minutes ago, RichCor said:

That "residential" CU seem rather open to the elements.

I am having canvas tarps made to measure at a shop in Ubon to cover all 4 sides and will return to CR and have them fitted. I just recently completed all the tank pipe work so now ready to cover everything

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