And because residential voltage always stays the same, electricians measure load and capacity in units of current, which are amperes, or amps. In basic electrical calculations, electricians use ...

Section 1 Abridged Procedure: Basic instructions to perform commercial load calculations, on buildings of three stories or less. Supports a simplified hand calculation. Section 2 Advanced Topics: ...

Parts N (Normative Requirements) and 4 (Normative Tables) contain the minimum requirements for conducting a residential load calculations. Informative Parts 1, 2, 3, and 5 contain additional ...