According to article 210-19(A)(1) FPN No. 4 the voltage drop on a branch circuit at the farthest outlet can not exceed 3 percent and 5 percent on both feeders and branch circuit.
My question is, how to test this?
The code does not mention anything about the circuit being loaded or unloaded.
A basic test would be to use a volt meter at the main panel and then take a reading out at the receptacles, compare the readings and see if you exceed the limits.
Or, Ideal makes a meter called a Sure Test Circuit Analyzer that uses a load and gives you the voltage drop.
So, is the first meathod of just using a voltmeter (and no load) acceptable to the code?
Any comments or suggestions would be greatly appreciated.
Thanks in advance.
