online 2005 master test mistake ?

[e2me]

the question reads
what is the general lighting and general use receptical load for a 30,000 sq ft bank

a162kva
b123kva
c173 kva
d 151 kva


I think none are right
30,000 x 3.5 va sqft for lights as per 230.12 105,000

30,000 x 1 va per sqft for outlets as per 230.14k
30,000
the first 10,000 100% as per 220.44 10,000
the rest 50% 20,000 x.50 10,000
125,000va or 125kva
am i going a stray somewhere

 

[charlie b]

If you are going astray, then I'm coming along for the ride. I would have picked the "123" answer, presuming the "3" to have been a typo.

 

[TAZMAN]

on line 2005 master test mistake

on line 2005 master test mistake

I would pick 162 kva. As follows:

30,000 sq ft. table 220.12

30,000 * 3.5 x 1.25 = 131,250 lights would be considered a continious load

220.14 k 30,000 * 1 va = 30,000 add these together equals 161,250

220.44 does not permit me to apply demand factors to these receptacles.

 

[e2me]

I would pick 162 kva. As follows:

30,000 sq ft. table 220.12

30,000 * 3.5 x 1.25 = 131,250 lights would be considered a continious load

220.14 k 30,000 * 1 va = 30,000 add these together equals 161,250

220.44 does not permit me to apply demand factors to these receptacles.

yes i see the light now thank you for clearing my head

 

[e2me]

I would pick 162 kva. As follows:

30,000 sq ft. table 220.12

30,000 * 3.5 x 1.25 = 131,250 lights would be considered a continious load

220.14 k 30,000 * 1 va = 30,000 add these together equals 161,250

220.44 does not permit me to apply demand factors to these receptacles.

actualy after further review i believe you to are 1/2 wrong 220.44 does apply to the outlet load as it states

recptical loads calculated in accordance with 220.14h and I shall be permitted to be subject to 220.42

these outlets are under I although I refers us to k for outlet 180 va it does not exclude the use of 220.44 to these thereby after applying 220.44 to the 30,000 va outlet load the actual VA woulfd be 151,250 or D

 

[Smart $]

actualy after further review i believe you to are 1/2 wrong 220.44 does apply to the outlet load as it states

recptical loads calculated in accordance with 220.14h and I shall be permitted to be subject to 220.42

these outlets are under I although I refers us to k for outlet 180 va it does not exclude the use of 220.44 to these thereby after applying 220.44 to the 30,000 va outlet load the actual VA woulfd be 151,250 or D

Don't you just love it... a master level test with questions not befitting the level!

Anyway, I would have went for "none of the above" if that had been an option, as none are even typo-close to the answer as the question is written. First, the question asks for general lighting and receptacle load. Since it does not state feeder and service load, you calculate branch circuit load and stop there, IMO. Second, if perhaps by the context of questions before and after this question, one should assume this to be a feeder and service load, I would go with your initial assessment.

As to multiplying continuous loads by 125%, that would be for feeder and service entrance conductor ampacity. The question did not mention ampacity.

 

[finhead]

My vote is with Tazman. Section 220.44 does not apply because the receptacle load was not figured at 180 VA per outlet.

 

[e2me]

update

update

My vote is with Tazman. Section 220.44 does not apply because the receptacle load was not figured at 180 VA per outlet.

The recpt load is not required to be figured at 180va if in J OR K and these are, so we use k which lets us use 1 VA per sqft
then we get to 220.44 and it lets us use the derate if the loads were calculated with h and I and we did go under I which also gave us permission to use 1 VA if it is a bank or office
so the 220.44 derate is allowed because it is under I with special permission to use k and no menion of not allowing if you use this exeption
Also after getting the results from the Mike Holt test Answer D is the correct answer and the derate is allowed also conferned this with the city inspector here
thanks for all the input

 

[finhead]

Were the outlets figured according to 220.14 (H)? No.
Were the outlets figured according to 220.14 (I)? No.

So what is the basis for using the demand factors permitted in 220.44?