Most electricians can almost wire in their sleep, but occasionally the job calls for something beyond the scope of their experience. This practical reference has practically every possible wiring diagram under the sun for outlets and switches, lighting, transformers, motors and controls, electrical services, power distribution, overload protection, grounding and bonding, low voltage and hazardous locations.

While this may not be a reference that’s used daily, it can save hours of time when it’s needed, and is small enough to fit in a toolbox, along with your amp meter and wire-strippers.

It provides Ohm’s law diagrams and formulas, circuit characteristics, NEC requirements on conduit bending, bending stub-ups, pull and connection joints, junction box calculations, conductor volume allowance, box fill, enclosures in wet locations, grounded conductor color codes, grouped conductors, paralleled conductors, power wiring color codes, basic grounding conductor requirements, minimum size conductors for grounding, underground installation requirements, family room receptacle outlet spacing, countertop receptacle spacing, kitchen, bathroom, crawlspace, garage and shop, and outdoor receptacles, isolated ground receptacles, switches, split-wired switches, three- and four-way switches, preheat circuits, low-voltage circuits, closed circuit intruder alarm, modular pin connections, common low-voltage relay wiring diagrams, basic grounding connections, bonding jumpers, grounding testing, ground-fault protection, motor starter diagrams, transformer circuits, transformer testing, four-wire circuits, circuit breakers, pole-mounted service-entrance, meter diagrams, double-bus systems, and much more.