Texas - Residential Wireman Electrician

Grounded conductors 6 AWG or smaller must be identified by continuous white or gray finish (or three white/gray stripes), while equipment grounding conductors must be identified by continuous green or green with yellow stripes.

Mandatory rules use the terms 'shall' or 'shall not' to identify required or prohibited actions, whereas permissive rules use different language to indicate acceptable options.

Chapters 1–4 apply generally to all electrical installations, while Chapters 5, 6, and 7 apply to special occupancies, special equipment, or other special conditions and may supplement or modify the general requirements.

Multiwire branch circuits shall supply only line-to-neutral loads by default; supplying line-to-line loads is permitted only where the circuit supplies one utilization equipment or all ungrounded conductors are opened simultaneously by the overcurrent device.

The minimum branch-circuit conductor ampacity must be not less than 125 percent of the continuous load, while the noncontinuous load is added at 100 percent.

Bathrooms, garages, outdoors, crawl spaces, basements, kitchens, laundry areas, boathouses, and indoor damp/wet locations require GFCI protection, while living rooms, bedrooms, and hallways are not listed GFCI-required locations.

In dwelling units, voltage supplying luminaire terminals must not exceed 120 volts nominal between conductors; for circuits exceeding 120 volts but not exceeding 277 volts to ground, only medium-base or smaller screw-shell incandescent lampholders are permitted under specific conditions.

Flexible cords shall not be used as a substitute for the fixed wiring of a structure; fixed wiring is the required permanent wiring method.

Small-appliance branch circuits require a minimum of two 20-ampere circuits for dwelling unit receptacle outlets, while household ranges rated 8¾ kW or more require a dedicated branch circuit rated at least 40 amperes.

Branch circuits may be derived from autotransformers only if the circuit supplied has a grounded conductor electrically connected to a grounded conductor of the supply system; otherwise they are prohibited.

When using an outlet branch-circuit-type AFCI with a supplemental arc protection circuit breaker, the maximum wiring length from the overcurrent device to the first outlet is 50 feet for 14 AWG; standard AFCI protection does not carry this length restriction.

The continuity of a grounded conductor shall not depend on connection to a metal enclosure, raceway, or cable armor; these are separate systems and cannot substitute for proper grounded conductor continuity.