Power Quality
Power Quality
PUC Distributions supplying voltages at the service entrance to customers in accordance with PUC's condition of service and CSA Standard Voltage Requirements CAN3-C235 are:
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Recommended Voltage Variation Limits of Circuits up to 1000 V, at Service Entrances |
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NOMINAL SYSTEM VOLTAGES (V) |
NORMAL OPERATING CONDITIONS |
EXTREME OPERATING CONDITIONS |
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Min (V) |
Max (V) |
Min (V) |
Max (V) |
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SINGLE PHASE |
120/240 |
110/220 |
125/250 |
106/212 |
127/254 |
|
600 |
550 |
625 |
530 |
635 |
|
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THREE PHASE, 4-WIRE (WYE) |
120/208 |
112/194 |
125/216 |
110/190 |
127/220 |
|
347/600 |
318/550 |
360/625 |
306/530 |
367/635 |
|
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THREE PHASE, 3-WIRE |
240 |
220 |
250 |
212 |
254 |
|
600 |
550 |
625 |
530 |
635 |
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If you believe you are experiencing power quality concerns, please contact our Customer Experience team at 705-759-6500 and they will schedule you an appointment for a PUC employee to inspect the equipment leading to your home.
Please note a licensed electrician may be required for internal inspections.
Contact Us
PUC Services Inc.
500 Second Line East
PO Box 9000
Sault Ste. Marie, P6A 6P2
Office Hours By Phone
Monday – Friday
9:00 a.m. – 4:30 p.m.
Customer Experience: 705-759-6500
Emergencies: 705-759-6555
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