Should I remove the 3 phase capability in my house?

[scorecard]

For several years we've used an electric cooking hob, the house was wired (3 phase) for this purpose but the hob now needs expensive repairs and the cost of electricity for cooking now way too expensive. 

 

We've decided to install a good quality gas hob (Hafele 3 burner, currently on promotion in several outlets).

 

My questions:

 

- Should we have the 3 phase aspect to the house wiring removed or disabled? And can your average local sparkie handle this safely, and if done by the local authority is it expensive.

 

- Would removal of the 3 phase capability reduce the monthly bill at all?

 

All advice / comments appreciated, thanks.  

[lopburi3]

Might want to advise current monthly bill or units used?  If you can provide both perhaps someone can determine if costing more per unit that single phase.  

 

Not sure of any extra expenses for 3 phase after installed so may not be cost effective and at some time you might want the extra capacity unless there is an extra surcharge.  Believe has to be officially done with electric provider.

[bankruatsteve]

1 hour ago, scorecard said:

Would removal of the 3 phase capability reduce the monthly bill at all?

I doubt it.

[sometimewoodworker]

1 hour ago, scorecard said:

Should we have the 3 phase aspect to the house wiring removed or disabled?

My advice is no, as you can run on each phase effectively being single phase and it’s not uncommon for 1 of the 3 phases to go down leaving the other 2 live.

1 hour ago, scorecard said:

Would removal of the 3 phase capability reduce the monthly bill at all?

No, or by such a small amount as to be insignificant, under 40 Baht.

1 hour ago, scorecard said:

And can your average local sparkie handle this safely, and if done by the local authority is it expensive.

If you have a real Electriction (these are very difficult to find) he can and must deal with the house wiring. The PEA / MEA will be the ones to change the meter. You will have to get a quote from them for cost and timing, they will also tell you what you need to get done before they change the supply.

 

As to safety, is your average local sparkie safe? TIT YMMV ???? 

Edited December 14, 2021 by sometimewoodworker

[86Tiger]

 

 

As 3 phase is the standard for residential installations rather than exception there is no advantage to removing.

 

 

Any qualified experienced electrician will have no problem with 3 phase.  There are very few qualified electricians, but quite a few experienced.

[lopburi3]

1 minute ago, 86Tiger said:

As 3 phase is the standard for residential installations rather than exception there is no advantage to removing.

Are you serious?  In Thailand 3 phase is very much the exception and not needed for most residential homes.

[Crossy]

There's no advantage to removing it provided you are on a domestic tariff (did you get the COVID discounts?).

 

Of course having 3-phase means that if one phase goes out you still have two working.

 

If you do remove it mosr 3-phase boards have a "single-phase kit" available you you don't need a new board or any re-wiring.

[scorecard]

Just now, Crossy said:

There's no advantage to removing it provided you are on a domestic tariff (did you get the COVID discounts?).

 

Of course having 3-phase means that if one phase goes out you still have two working.

 

If you do remove it mosr 3-phase boards have a "single-phase kit" available you you don't need a new board or any re-wiring.

Thanks, yes on domestic tariff and yes COVID- 19 discounts received.

 

So I'll take no further action. 

 

 

[sometimewoodworker]

6 hours ago, 86Tiger said:

As 3 phase is the standard for residential installations rather than exception there is no advantage to removing.

You are either living in cloud cuckoo land or in a Nordic country. As mentioned 3 phase is extremely rare in residential installations here.

[digbeth]

you sure it's 3 phase and not 30 amp meter? very unusual to get 3-phase just for oven/hob, normally people get 3 phase for big BTUs air conditioner 

[scorecard]

5 hours ago, digbeth said:

you sure it's 3 phase and not 30 amp meter? very unusual to get 3-phase just for oven/hob, normally people get 3 phase for big BTUs air conditioner 

Engineer from the development company suggested, at meeting re alterations to the house plan, that we should have 3 phase after we said we planned having several air cons and an electric cook hob. 

 

  asked During discu