1 - 9 of 9 Posts

#### TomSpano

·
##### Registered
Joined
·
96 Posts
Discussion Starter · ·
Simple question I was hoping someone could help me with: the code book states "the rating of the overcurrent device shall not be less than the sum of the non continuous plus 125% of the continuous load". Ok so what exactly is considered a continuous load or non continuous load? And then what value would be used for convience outlets on a branch circuit? I iasked about 50 questions yesterday so I figured I'd go to a different source hah. Thanks

#### Dennis Alwon

·
Retired EC
Joined
·
24,440 Posts
In definitions in the code book you will see that a continuous load is one which is on for 3 hours or more. The general duty receptacles would not be considered continuous loads.

#### backstay

·
##### Registered
Joined
·
14,715 Posts
Dennis Alwon said:
In definitions in the code book you will see that a continuous load is one which is on for 3 hours or more. The general duty receptacles would not be considered continuous loads.
And some loads are considered continuous period.

#### Chrisibew440

·
##### Registered
Joined
·
1,437 Posts
180va per outlet. So 120volts x 20 amps = 2400 watts x .80% = 1,920 watts divided by 11 (outlets) = 174 va

#### stars13bars2

·
##### Big Member
Joined
·
319 Posts
180va per outlet. So 120volts x 20 amps = 2400 watts x .80% = 1,920 watts divided by 11 (outlets) = 174 va
what?????????????

#### Going_Commando

·
##### Registered
Joined
·
6,204 Posts
stars13bars2 said:
what?????????????
Non-dwelling and optional load calls brah.

#### Chrisibew440

·
##### Registered
Joined
·
1,437 Posts
Non-dwelling and optional load calls brah.
Isn't 180 va for convenience outlets like he asked.

#### diamond dave

·
##### Registered
Joined
·
21 Posts
180va per outlet. So 120volts x 20 amps = 2400 watts x .80% = 1,920 watts divided by 11 (outlets) = 174 va
13 receptacles on a 20 amp circuit for commercial application

#### 1.21gigawatts

·
##### Registered
Joined
·
90 Posts
13 receptacles on a 20 amp circuit for commercial application
I agree with you. 120v x 20a = 2400va / 180va = 13.33 or (13) general use recepts. As Dennis had mentioned receptacles would not be considered continious and the 80% demand would not be applied. A good design would be 6 to 7 outlets on a circuit which is a safety factor should office staff want to plug in a fish tank, space heater, lava lamp and a mini fridge in the power strip.

1 - 9 of 9 Posts