I am an engineer installing several new pieces of equipment. I have to verify the actual power supplies and grounding against the available supplies. What does the code say about tolerances around voltage and grounding? For example, one machine requires 115VAC and our actual supply at the time of testing was 119VAC. Does the code specify that +/- 10% is acceptable?
Similarly with grounding, 0 Ohms is the most desirable, but does the code give any requirements for acceptable grounding?
Similarly with grounding, 0 Ohms is the most desirable, but does the code give any requirements for acceptable grounding?