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Doug's
Single-Dwelling
Residential Electrical Service Size
Calculator (Canada)
UPDATED TO 2012 CEC, Part 1

Instructions:
Enter home data into the 9 boxes in the "data" column.
As data are entered, the form calculates results in real time.

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row CEC rule info items data calc's. watts
01 note Select: m2 ft.2 Step 1. Basement Floor Area:    
02 8-110(c) Revised Basement Floor Area in m2 »
0 m2
 
03 8-110(a),(b) Select: m2 ft.2 Step 2. Add'l Floor Areas Combined:    
04   Conversion of row 3 value into m2 »
0 m2
 
05 8-110(a),(b),(c) Total Floor Area for Demand Calculation in m2 »
0 m2
 
06 8-200(1)(a)(i),(ii) Watts Assigned To Above Total Floor Area »
0 W
07 8-200(1)(a)(iii) Step 3. Space Heating Loads: W    
08 62-116(1),(2) Space Heat Watts Revised »
0 W
 
09 8-200(1)(a)(iii) Step 4. Air-Conditioning Loads: W    
10 8-106(4) Step 5. Check box if space heat and air-conditioning can be on simultaneously =>    
11   Watts Assigned To Space Heat and AC Loads »
0 W
12   Step 6. Electric Range: W    
13 8-200(1)(a)(iv) Watts Assigned To Electric Range »
0 W
14 8-200(1)(a)(v) Step 7. Water Heaters: Tankless Water Heaters; Water Steamers; Pool, Tub & Spa Water Heaters: W  
0 W
15 8-200(1)(a)(vi) Step 8. Electric Vehicle Charging Equipment Loads: W  
0 W
16 8-200(1)(a)(vii) Step 9. Additional Loads: With Rating Greater Than 1500 Watts: W    
17 8-200(1)(a)(vii) Watts Assigned To Additional Loads »
0 W
18   TOTAL DEMAND WATTS »
0 W
19   TOTAL DEMAND AMPS »
0 A
20 8-200 Minimum Service Amps:
21 Table 2 or 4 Hot Conductor Size:
22   Meter Base Rating:
23 Table 13 Main Fuse / Breaker:
24 10-812 Service Grounding Conductor:
25 Table 41 Service Bonding Jumper:
26 Table 6 Service Conduit Size (threaded, rigid metal):
27 8-108 Service Panel Size (minimum):

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