He is in Cairo , so they might not use 120 volts there.220V? Sure must be a very large unit.
RC
He is in Cairo , so they might not use 120 volts there.
Fine, but i've never seen one outlet in individual circuit in corridors, at least 3 or 4 by circuit, may be one one only will be working by diversity factor, but what code says here?If you know for a fact that the design load is over 12a then I would guess that 220.19 would limit you to one outlet but I would not be surprised to see that I am mistaken.
Fine, but i've never seen one outlet in individual circuit in corridors, at least 3 or 4 by circuit, may be one one only will be working by diversity factor, but what code says here?
As Gus said, if the design load is known...220.14(I) would say 180VA as a minimum.
I agree your concept, but some other requirements have to be counted, voltage drop & 210.21(B)(2) says 80% of 20a.As Gus said, if the design load is known...
However, the number of receptacles allowed on the circuit would be one at 12A ? 220V, or 2640VA, the rest at 180VA.
20A ? 220V = 4400VA
4400VA - 2640VA = 1760VA
1760VA ? 180VA = 9.7, rounded down to 9 more receptacles permitted...
...and that's only if you subscribe to the belief that the numbers of receptacles on a circuit are limited per the calculation requirements.
Number of receptacles does not affect voltage drop, only what you plug into them does.I agree your concept, but some other requirements have to be counted, voltage drop & 210.21(B)(2) says 80% of 20a.
Load & length affecting the voltage drop, increasing no of receptacles leading to increasing in demand load.Number of receptacles does not affect voltage drop, only what you plug into them does.
Would you cite me to location in code!Code itself prohibits load-limiting receptacle and plug design,
That need another revolutionand we do not post electrically-qualified, armed sentries
Yes... but there is no general Code requirement to account for voltage drop in the design.Load & length affecting the voltage drop, increasing no of receptacles leading to increasing in demand load.
210.21(B)... except for 15A receptacles on a 20A branch circuit. Your OP stated 20A receptacle.Would you cite me to location in code!