bmw1150rt Posted March 20, 2017 Report Share Posted March 20, 2017 Our neighbor needs 220 electrical service installed at their house to operate a soon to be needed medical device. Any recommendations for an electrician that can handle this? Thank you. Link to comment Share on other sites More sharing options...
John Shrall Posted March 20, 2017 Report Share Posted March 20, 2017 Miguel and his son Jorge made us a 220 volt circuit with breaker for a dryer so I know they are capable. 33-3197-4001 Link to comment Share on other sites More sharing options...
jh5127 Posted March 21, 2017 Report Share Posted March 21, 2017 If you don't have 220 V service at the meter, you can't have 220 V service in the house. Link to comment Share on other sites More sharing options...
lcscats Posted March 21, 2017 Report Share Posted March 21, 2017 The voltage is different here. Its 127V plus or minus 10% for wall plugs ( one phase). So you might need a voltage regulator to give the proper voltage depending on the info you should get from the manufacturer of the medical equipment. You must have two phase service to your house to do what you need to do. Link to comment Share on other sites More sharing options...
johanson Posted March 21, 2017 Report Share Posted March 21, 2017 Yes each of the 3 phases is 127 volts +/- 10% and they are not 180 degrees but 120 degrees out of phase with each other therefore any two phases gives you 220 volts. If each phase was 180 degrees out of phase with the other the voltage would be 254 volts, Link to comment Share on other sites More sharing options...
Go Solar Posted March 21, 2017 Report Share Posted March 21, 2017 Keep in mind if their current CFE service is a single 1 phase meter, (just check the meter face or CFE bill to confirm it) they'll need to notify / apply with CFE for a change to that as well, and CFE will visit to change the meter to a 2 phase meter. Not difficult or expensive, just necessary. The electrician may handle this or assist them with it. Link to comment Share on other sites More sharing options...
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