Show windows...What am I missing?

[Strathead]

I look at 220.43 and it requires 200VA per foot for show windows branch circuit. Then 210.62 requires one receptacle for every 12 feet of window. If I have 12 feet of window that would be 2400va but this load would have to be considered continuous, so a 20 amp circuit wouldn't be adequate for receptacles spaced 12 feet apart. Then I looked at a Hollister remodel that I just bid. They show .720KVA with the required 2 receptacles one circuit for approximately 24 feet of show window on approved plans and the a PF Chang's with 24 feet of window and 600va on the panel schedule for load again one circuit 2 receptacles.

 

[Dennis Alwon]

220.43 is for feeder and service calculation and requires 200va/ linear ft

Whereas 220.14(G) allows either 200va/linear foot or 180va per receptacle. Looks like they have 4 receptacles on the plan

 

[Strathead]

220.43 is for feeder and service calculation and requires 200va/ linear ft

Whereas 220.14(G) allows either 200va/linear foot or 180va per receptacle. Looks like they have 4 receptacles on the plan

Thank you Dennis. I saw 210.14 but hesitated to believe the "unit load per outlet as required in other provisions" meant 180VA per outlet

 

[WA_Sparky]

220.43 is for feeder and service calculation and requires 200va/ linear ft

Whereas 220.14(G) allows either 200va/linear foot or 180va per receptacle. Looks like they have 4 receptacles on the plan

Does this mean you need to have either (1) receptacle above each show window (number of devices based on window width) totaling 200VA per LF, OR (1) receptacle every 1 ft of show window rated at 180VA per device?

 

[Dennis Alwon]

Does this mean you need to have either (1) receptacle above each show window (number of devices based on window width) totaling 200VA per LF, OR (1) receptacle every 1 ft of show window rated at 180VA per device?

You do know this thread is 3 years old..haha

There are 2 things going on here

210.62 Show Windows. At least one 125-volt, single-phase, 15-
or 20-ampere-rated receptacle outlet shall be installed within
450 mm (18 in.) of the top of a show window for each 3.7
linear m (12 linear ft) or major fraction thereof of show
window area measured horizontally at its maximum width.

and

220.14(G) Show Windows. Show windows shall be calculated in
accordance with either of the following:
(1) The unit load per outlet as required in other provisions
of this section
(2) At 200 volt-amperes per linear 300 mm (1 ft) of show
window