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E1 RESIDENTIAL ELECTRICAL INSPECTOR 2026
REVISION NOTES AND STRUCTURED
ELECTRICAL INSPECTION OVERVIEW GUIDE
◉ Electrical panelboards and overcurrent devices shall not be located in _______________________________. Answer: clothes closets, bathrooms or over the steps of a stairway. 2015 IRC Section E3405.5 Location of working spaces and equipment. ◉ Overhead service-drop conductors shall have a vertical clearance of not less than __________ feet above the roof surface. Answer: 8 feet. Review all of the exceptions in this section. 2015 IRC Section E3604.2.1 Above roofs. ◉ Electrical services within the scope of the IRC are limited to ____________-volt, 0-to _______________ - ampere, single-phase systems. Answer: 120/
2015 IRC Section E3401.2 Scope ◉ Recessed incandescent fixtures shall have _____________ protection. Answer: Thermal. Know the two exceptions in this section. 2015 IRC Section E4003.5 Recessed incandescent luminaries. ◉ A minimum of ___________ ___________ branch circuit shall be provided to supply the bathroom receptacle outlet(s). Such circuits shall have no other outlets. Answer: one 20-amp Read the exception in this section for supplying each bathroom with its own 20-ampere circuit. 2015 IRC Section E3703.4 Bathroom branch circuits. ◉ Connected to establish electrical continuity and conductivity. Answer: Bonded (Bonding)
◉ Where a branch circuit or a feeder supplies a continuous load, it shall have an ampacity of ______________ percent of the continuous load. Answer: 125 percent. a continuous load is something that will run for more than 3 hours, such as an A/C unit. Review exception. 2015 IRC Section E3701.2 Branch-circuit and feeder ampacity. ◉ Over residential property and driveways, service-drop conductors shall have __________ feet minimum clearance above final grade. Answer: 12 feet. review the other clearance requirements in this section. 2015 IRC Section E3604.2.2 Vertical clearance from grade, Item 2. ◉ Rod and pipe electrodes shall be not less than ___________ feet in length. Answer: 8 feet.
2015 IRC E3608.1.4 Rod and pipe electrodes. ◉ Underground service laterals that are not encased in concrete and that are buried 18 inches or more below grade shall have their location identified by a ________________ _____________. Answer: warning ribbon. Placed in the trench at least 12 inches above the underground installation. 2015 IRC Section E3803.2 Warning ribbon. ◉ Kitchen countertop receptacles shall be installed so that no point along the wall line is more than ___________ inches from a receptacle. Answer: 24 inches. This is the 2/4 rule: 2 feet from any opening and every 4 feet after that. 2015 IRC Section E3901.4.1 Wall countertop space. ◉ At least one receptacle outlet in bathrooms is required to be within ________________ inches of each lavatory basin. Answer: 36 inches.
◉ Unused openings in cabinets and panelboards shall be effectively _____________ to afford protection equivalent to that of the wall of the cabinet. Answer: closed. This means open knockouts are not allowed. 2015 IRC Section E3906.4 Unused openings. ◉ The __________________ shall not be considered as an effective ground-fault current path. Answer: earth. 2015 IRC Section E3908.5 Earth as a ground-fault current path. ◉ A luminaire that weighs more than ____________ pounds or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lampholder. Answer: 6 pounds. 2015 IRC Section E4004.4 Supports. ◉ Flexible cords for kitchen range hoods shall be _______________ inches minimum and _____________ inches maximum length. Answer: 18 inches.
36 inches. 2015 IRC Table E4101.3 Flexible Cord Length. ◉ Ceiling-suspended paddle fans shall be supported ________________ of the outlet box. Answer: independently. 2015 IRC Section E4101.6 Support of ceiling-suspended paddle fans. ◉ Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as ______________ __________________. Answer: sunlight resistant. 2015 IRC Section E3802.3.3 Locations exposed to direct sunlight. ◉ Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a ______________ location. Answer: wet. Insulated conductors and cables installed in raceways in we locations above grade shall be listed for use in wet locations. 2015 IRC Section E3802.7 Raceways in we locations above grade.
◉ No. 14 (3406.3) Answer: The minimum size of electrical conductors for feeders and branch circuits, when of copper, shall be (_____) AWG. ◉ 6 inches (3406.11.3) Answer: Where electrical conductors are to be spliced, terminated or connected to fixtures or devices, a minimum length of (_____) of free conductor shall be provided at each outlet, junction or switch point. ◉ Continuous white or gray outer finish OR three continuous white stripes / continuous black outer finish (3407.1) Answer: Insulated grounded conductors of sizes 6 AWG and smaller may be identified by (____) but not by (____). ◉ Continuous green color (also with one or more yellow stripes) or Bare / Continuous white color (3407.2) Answer: Equipment grounding conductors of sizes 6 AWG and smaller may be identified by (____) but not by (____). ◉ White, gray or green (3407.3) Answer: Insulation on ungrounded conductors shall be a continuous color other than (____). ◉ 24 inches (3605.9.3 exc.) Answer: Where it is impractical to locate the service head or gooseneck above the point of attachment of the
service-drop or overhead service conductors to the building, the service head or gooseneck shall be located a maximum of (_____) from the point of attachment. ◉ 3 feet (3604.1) Answer: An open service conductor without an overall outer jacket shall have a minimum clearance of (_____) from the sides of doors, porches and openable windows. ◉ 8 feet (3604.2.1) Answer: An overhead service conductor shall have a minimum clearance above a 3:12 roof of (_____). ◉ 12 feet (3604.2.2 #2) Answer: Overhead service conductors shall have a minimum clearance of (_____) over residential property and driveways. ◉ 10 feet (3604.3) Answer: In all cases, the point of attachment of service drop conductors to a building shall be a minimum of (_____) above finished grade. ◉ 10 feet (3608.1.1) Answer: A metal underground waterpipe used as part of the grounding electrode system shall be in direct contact with the earth for a minimum of (_____). ◉ 6 feet (3608.3) Answer: Where more than one rod, pipe or plate electrode is used in one grounding electrode system, each electrode
◉ three volt-amperes (3704.4) Answer: When sizing feeder conductors, a minimum unit load of (_____) shall constitute the minimum lighting and convenience receptacle load for each square foot of floor area. ◉ 15,20,25,30,35,40,45,50,60,70,80,90,100,110,125,150,175,200, 225,250,300,350 and 400 amperes (3705.6) Answer: What are the standard ampere ratings for fuses and inverse time circuit breakers? ◉ 1/4" (3404.6) Answer: Where metallic plugs or plates are used with nonmetallic electrical enclosures to close unused openings , they shall be recessed a minimum of (____) from the outer surface of the enclosure. ◉ clothes closets, in bathrooms, or over the steps of a stairway. (3405.5) Answer: Electrical panelboards and overcurrent protection devices shall not be located in (_____). ◉ 3 inches (3406.11.3) Answer: Where the opening to an outlet, junction, or switch point is less than 8 inches in any dimension, each electrical conductor shall be long enough to extend a minimum of (____) outside of such opening. ◉ bathrooms (3601.6.2) Answer: Electrical service disconnecting means shall not be installed in (_____).
◉ 5 feet (3608.1.1.1) Answer: In order to be used as part of the grounding electrode system, interior metal water pipe shall be located a maximum of (_____) from the entrance to the building. ◉ 3 feet (3604.2.1 exc.2) Answer: Electrical conductors located above a roof shall be installed with a minimum vertical clearance of (_____) where the roof has a slope of 8:12. ◉ 12 inches, 30 inches (3605.7) Answer: Service entrance cables shall be supported by straps or other approved means within (____) of every electrical service head and at maximum intervals of (_____). ◉ 30 inches (3608.1.5) Answer: A plate electrode installed as part of a grounding electrode system shall be located a minimum of (____) below the surface of the earth. ◉ 6 feet, 7 inches (3705.7 #6) Answer: An overcurrent protection device shall be installed so that the center of the grip of the operating handle of the switch or circuit breaker, when in its highest position, is located a maximum of (____) above the floor or working platform. ◉ 120/240, 400 (3401.2) Answer: Electrical services within the IRC are limited to (_____)-volt, 0- to (_____)-ampere, single-phase systems.
◉ 8 feet (3608.1.4) Answer: Rod and pipe electrodes shall not be less than (_____) in length. ◉ continuity (3609.1) Answer: Bonding shall be provided where necessary to ensure electrical (_____). ◉ Accessible (when not buried or concrete encased) (3611.2) Answer: All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrodes shall be (_____). ◉ 125% (3701.2) Answer: Where a branch circuit or feeder supplies a continuous load, it shall have an ampacity of (_____) of the continuous load. ◉ continuous load Answer: A (_____) is something that will run for more than three hours, such as an A/C unit. ◉ Continuous (3702.10) Answer: Branch circuit ratings for space- heating and water-heating appliances shall be considered (_____) loads. ◉ 90 (3705.4.4) Answer: Conductors in NM cable assemblies shall be rated at (_____) degrees Celsius.
◉ sunlight resistant (3802.3.3) Answer: Insulated conductors and cables exposed to direct rays of the sun shall be listed and labeled as (_____). ◉ wet (3802.7) Answer: Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a (_____) location. ◉ wet Answer: Insulated conductors and cables installed in raceways in wet locations above grade shall be listed for use in (_____) locations. ◉ warning ribbon (3803.2) Answer: Underground service laterals that are not encased in concrete and that are buried 18 inches or more below grade shall have their location identified by a (_____). ◉ 12 inches (3803.2) Answer: A warning ribbon shall be placed in the trench at least (_____) above the underground installation. ◉ 6 feet, 12 feet (3901.2.1) Answer: Receptacles shall be installed so that no point along the floor line in any wall space is more than (_____) measured horizontally, from an outlet in that space. (And every (_____) after that.)
◉ earth (3908.5) Answer: The (____) shall not be considered as an effective ground-fault current path. ◉ 6 feet, 7 inches (4001.6) Answer: Switches shall not be more than (____) above the floor or working platform when the switch is in its highest position. ◉ grounding (4002.2) Answer: Receptacles installed on 15- and 20- ampere-rated branch circuits shall be of the (____) type. ◉ thermal (4003.5) Answer: Recessed incandescent fixtures shall have (_____) protection. ◉ 12 inches (4003.12) Answer: In clothes closets, surface-mounted incandescent luminaires shall have (_____) minimum clearance from the nearest point of storage space. ◉ 6 inches (4003.12) Answer: In clothes closets, surface-mounted /recessed fluorescent and recessed incandescent fixtures shall have (_____) minimum clearance from the nearest point of storage space. ◉ 6 lbs (4004.4) Answer: A luminaire that weighs more than (____) or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lamp holder.
◉ 18 inches, 36 inches (4101.3) Answer: Flexible cords for kitchen range hoods shall be (____) minimum and (____) maximum length. ◉ Independently (4101.6) Answer: Ceiling suspended paddle fans shall be supported (____) of the outlet box. ◉ 12 (4202.2) Answer: Cords that supply swimming pool equipment shall have a copper equipment grounding conductor not smaller than No. (_____) AWG. ◉ Accessible (Equipment) Answer: Admitting close approach; not guarded by locked doors, elevation or other effective means. ◉ Accessible (Wiring Methods) Answer: Capable of being removed or exposed without damaging the building structure or finish, or not permanently closed in by the structure or finish of the building. ◉ Accessible, Readily Answer: Capable of being reached quickly for operation, renewal or inspections, without requiring those to whom ready access is requisite to take actions such as to use tools, to climb over or remove obstacles or resort to portable ladders. ◉ Ampacity Answer: The maximum current in amperes that a conductor can carry continuously under the conditions of use without exceeding its temperature rating.
