Browse Forums General Discussion 1 Sep 13, 2021 2:47 pm ****************************************************************** Our Build Journey: https://www.instagram.com/cteafamily/ ****************************************************************** Hi everyone, Do you think three phase 80 amps each will be enough for 50 square house? - 45 amp Induction Cooktop - 25 amp Oven - 22.2 kw refrigerated air conditioning - Swimming pool and Spa I'm applying for the underground pit with Citipower and they told me that three phase 80 amps should be enough. If I required more than 80 amps, it will be more expensive as they will need to do CT connected meter. Should I just apply three phase 80 amps each or go over 80 amps? Thanks! Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Re: Is Three Phase 80 amps each enough for 50 square house? 2Sep 13, 2021 3:03 pm wouldnt your builder be doing the calcs to validate the draw need? Dark matter scientist, can breathe underwater, mind reader and can freeze matter just by willing it. Trust me, its in my sig. Re: Is Three Phase 80 amps each enough for 50 square house? 3Sep 13, 2021 4:59 pm Noname wouldnt your builder be doing the calcs to validate the draw need? Yeap, the builder said three phase, 63 amps each should be enough. So the question is should I get 80 amps or 63 amps? Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Re: Is Three Phase 80 amps each enough for 50 square house? 4Sep 13, 2021 7:01 pm makido Noname wouldnt your builder be doing the calcs to validate the draw need? Yeap, the builder said three phase, 63 amps each should be enough. So the question is should I get 80 amps or 63 amps? AFAIK the distributer won't give you more than you need. Dark matter scientist, can breathe underwater, mind reader and can freeze matter just by willing it. Trust me, its in my sig. Re: Is Three Phase 80 amps each enough for 50 square house? 5Sep 15, 2021 3:07 pm makido Hi everyone, Do you think three phase 80 amps each will be enough for 50 square house? - 45 amp Induction Cooktop - 25 amp Oven - 22.2 kw refrigerated air conditioning - Swimming pool and Spa I'm applying for the underground pit with Citipower and they told me that three phase 80 amps should be enough. If I required more than 80 amps, it will be more expensive as they will need to do CT connected meter. Should I just apply three phase 80 amps each or go over 80 amps? Thanks! Does your induction cooktop take 3 phase as well ? I am installing one which has both the option for single as well as 3 phase. That way you can reduce your demand. Also installing 24KW 3 Phase reverse cycle which is around 20/25A 3 phase. Just to give an idea. Re: Is Three Phase 80 amps each enough for 50 square house? 6Sep 17, 2021 5:06 pm Ozshaz makido Hi everyone, Do you think three phase 80 amps each will be enough for 50 square house? - 45 amp Induction Cooktop - 25 amp Oven - 22.2 kw refrigerated air conditioning - Swimming pool and Spa I'm applying for the underground pit with Citipower and they told me that three phase 80 amps should be enough. If I required more than 80 amps, it will be more expensive as they will need to do CT connected meter. Should I just apply three phase 80 amps each or go over 80 amps? Thanks! Does your induction cooktop take 3 phase as well ? I am installing one which has both the option for single as well as 3 phase. That way you can reduce your demand. Also installing 24KW 3 Phase reverse cycle which is around 20/25A 3 phase. Just to give an idea. Thanks for sharing. After speaking to the builder, I'm applying for three phase with 63 amps each. Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Re: Is Three Phase 80 amps each enough for 50 square house? 7Sep 17, 2021 8:18 pm makido Ozshaz makido Hi everyone, Do you think three phase 80 amps each will be enough for 50 square house? - 45 amp Induction Cooktop - 25 amp Oven - 22.2 kw refrigerated air conditioning - Swimming pool and Spa I'm applying for the underground pit with Citipower and they told me that three phase 80 amps should be enough. If I required more than 80 amps, it will be more expensive as they will need to do CT connected meter. Should I just apply three phase 80 amps each or go over 80 amps? Thanks! Does your induction cooktop take 3 phase as well ? I am installing one which has both the option for single as well as 3 phase. That way you can reduce your demand. Also installing 24KW 3 Phase reverse cycle which is around 20/25A 3 phase. Just to give an idea. Thanks for sharing. After speaking to the builder, I'm applying for three phase with 63 amps each. May I ask how did you recalculate the 63A rating ? Re: Is Three Phase 80 amps each enough for 50 square house? 8Sep 23, 2021 9:09 am Ozshaz May I ask how did you recalculate the 63A rating ? The builder advised that with 63amp 3 phase, it should cover everything. Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Re: Is Three Phase 80 amps each enough for 50 square house? 9Sep 23, 2021 4:55 pm makido Ozshaz May I ask how did you recalculate the 63A rating ? The builder advised that with 63amp 3 phase, it should cover everything. That's good to know and hopefully he has taken into consideration the load you currently have or planning to have in the future. With Reverse cycle, induction , spa & swimming pool its getting very tight. I have similar loads (52Sq house) except for spa, swimming pool and my calculations are getting very close to 63A and I have requested for 80A as once the 63A wiring is done it would be very expensive to size up the cable and the switchboard. Best of luck. Re: Is Three Phase 80 amps each enough for 50 square house? 10Sep 24, 2021 4:12 pm Ozshaz That's good to know and hopefully he has taken into consideration the load you currently have or planning to have in the future. With Reverse cycle, induction , spa & swimming pool its getting very tight. I have similar loads (52Sq house) except for spa, swimming pool and my calculations are getting very close to 63A and I have requested for 80A as once the 63A wiring is done it would be very expensive to size up the cable and the switchboard. Best of luck. Thanks, did you have 80A three phase or 80A one phase? They said 63A three phase is like 189A which will be enough for most house for so hopefully it's right. Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Re: Is Three Phase 80 amps each enough for 50 square house? 11Sep 24, 2021 7:29 pm makido Ozshaz That's good to know and hopefully he has taken into consideration the load you currently have or planning to have in the future. With Reverse cycle, induction , spa & swimming pool its getting very tight. I have similar loads (52Sq house) except for spa, swimming pool and my calculations are getting very close to 63A and I have requested for 80A as once the 63A wiring is done it would be very expensive to size up the cable and the switchboard. Best of luck. Thanks, did you have 80A three phase or 80A one phase? They said 63A three phase is like 189A which will be enough for most house for so hopefully it's right. Some of your loads are three phase like Reverse cycle AC, Pool pump etc. The load has to be distributed across the phases. Also I am not sure if you are very keen to futureproof the option of EV car which again may be a three phase load and increase your load. Here is a link for the calculator which you can use - https://www.jcalc.net/maximum-demand-calculator-as3000 I hope this helps ! Re: Is Three Phase 80 amps each enough for 50 square house? 12Sep 25, 2021 11:33 am Ozshaz Some of your loads are three phase like Reverse cycle AC, Pool pump etc. The load has to be distributed across the phases. Also I am not sure if you are very keen to futureproof the option of EV car which again may be a three phase load and increase your load. Here is a link for the calculator which you can use - https://www.jcalc.net/maximum-demand-calculator-as3000 I hope this helps ! Thanks for sharing this. Citipower had already installed the pit (63amps three phase) so now I can only hope that it will cover everything I had just signed the quote, haven't paid the invoice yet and they had already finished the job. It's so quick Our first home build journey https://forum.homeone.com.au/viewtopic.php?f=31&t=96594 Our second home build journey https://forum.homeone.com.au/viewtopic. ... 1&t=103533 Our build journey on Instagram https://www.instagram.com/cteafamily/ Not unless you have managed to put it as a special condition into the contract somehow. 1 6150 No idea about the driveway question, but your price for a house that size including landscaping seems very good! 1 6155 1 62015 |