I'm an apprentice, my license electrician Journeymen handed me the Standard Load Calculation form for a job I'm working on. It's an existing home, with a 150 Amp Service. He wants to see if I can sink or swim. I have no training or education on the load calculation, I spent the past 8 hours with the 2008 NEC (will get 2011 with classes in spring)... this is where I'm at. Any help would be greatly appreciated.

Any links to "example" standard load calculations would be great.

1. General Lighting : Table 220.12

3450 square feet X 3 VA = 10,350 VA

1500VA (small appliance) x 2 = 3,000 VA

1500VA (laundry) x 1 = 1,500 VA

Total 14,850 VA

First 3,000 VA @ 100% = 3,000 VA

Next 11,850 VA @ 35% = 4,148 VA

Total 7,148 VA

Total Phase__________? VA

Total Neutral ________? VA

--------------------------------------------------------

2. Fixed Appliances: 250.53

Dishwasher = 168 VA ---> 1.4 amps

Disposal = 972 VA ----> 8.1 amps

Total = 1140 VA

1140 VA x 75% = 855 VA

_______? VA Phase

_______? VA Neutral (120 V loads at 75%)

--------------------------------------------------------

3. Dryer:220.53; 220.53

It's a mini size dryer, rated at 12 amps or 2880 VA. But codes says "5000 VA or name plate rating, which ever is larger".

5,000 VA x 100% = 5,000 VA

_______? VA Phases

_______? VA Neutral x 70%

------------------------------------------------------------

4. Cooking Equipment: Table 22.55; Notes

I'm totally lost here... with col. A, B, C

Cooktop 7 Kv = 7,000 VA

Oven 3.7 Kv = 3,700 VA

Col A _______ VA x _______% = _______ VA

Col B _______ VA x _______% = _______ VA

Col C _______ VA x _______% = _______ VA

_______? VA Phase

_______? VA Neutral x 70%

-----------------------------------------------------------

5. Heating or A/C: 220.60

A/C = 5,280 VA x 100% = 5,280 VA

______? VA Phase

______? VA Neutral

-----------------------------------------------------------

6. Largest Motor

I don't understand this... I did my A/C above.

------------------------------------------------------------

Phases I = ___ VA / ___ V = ___ A

Neutral I = ___ VA / ___ V = ___ A

____ VA Phases

____ VA Neutral

220.61(B) First 200 A x 100% = 200 A

Remaining ____ A x 70% =

Any links to "example" standard load calculations would be great.

1. General Lighting : Table 220.12

3450 square feet X 3 VA = 10,350 VA

1500VA (small appliance) x 2 = 3,000 VA

1500VA (laundry) x 1 = 1,500 VA

Total 14,850 VA

First 3,000 VA @ 100% = 3,000 VA

Next 11,850 VA @ 35% = 4,148 VA

Total 7,148 VA

Total Phase__________? VA

Total Neutral ________? VA

--------------------------------------------------------

2. Fixed Appliances: 250.53

Dishwasher = 168 VA ---> 1.4 amps

Disposal = 972 VA ----> 8.1 amps

Total = 1140 VA

1140 VA x 75% = 855 VA

_______? VA Phase

_______? VA Neutral (120 V loads at 75%)

--------------------------------------------------------

3. Dryer:220.53; 220.53

It's a mini size dryer, rated at 12 amps or 2880 VA. But codes says "5000 VA or name plate rating, which ever is larger".

5,000 VA x 100% = 5,000 VA

_______? VA Phases

_______? VA Neutral x 70%

------------------------------------------------------------

4. Cooking Equipment: Table 22.55; Notes

I'm totally lost here... with col. A, B, C

Cooktop 7 Kv = 7,000 VA

Oven 3.7 Kv = 3,700 VA

Col A _______ VA x _______% = _______ VA

Col B _______ VA x _______% = _______ VA

Col C _______ VA x _______% = _______ VA

_______? VA Phase

_______? VA Neutral x 70%

-----------------------------------------------------------

5. Heating or A/C: 220.60

A/C = 5,280 VA x 100% = 5,280 VA

______? VA Phase

______? VA Neutral

-----------------------------------------------------------

6. Largest Motor

I don't understand this... I did my A/C above.

------------------------------------------------------------

Phases I = ___ VA / ___ V = ___ A

Neutral I = ___ VA / ___ V = ___ A

____ VA Phases

____ VA Neutral

220.61(B) First 200 A x 100% = 200 A

Remaining ____ A x 70% =

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