26200001 – Service Entrance Transformer Wiring Diagram

A schematic diagram illustrating the setup of a typical pad mount service entrance transformer. On the left, the transformer section has two labeled parts: “Primary” with a delta symbol and “Secondary,” which connects to a grounding point marked with a diamond labeled “A.” Lines extend from the secondary side to the service entrance panelboard on the right side of the image. The panelboard features circuit breakers and items with diamonds “D” and “G,” representing the equipment grounding conductor and equipment grounding bar, respectively. There are further connections labeled with “E” leading to building steel, “F” to metal water piping system, and “N” indicating the neutral bar. Other annotations include grounding electrode conductor marked “B” and grounding electrode labeled “C.” Below the schematic, a list defines each alphabetic label, providing clarity on each component.