IRC Electrical

In no case shall the point of attachment for service-drop conductors be less than ____ feet above finish grade.

10 ft. E3604.3 Point of attachment.

Over residential property and driveways, service-drop conductors shall have a ____ feet minimum clearance above final grade.

12 ft. Review the other clearance requirements in this section. E3604.2.2 Vertical clearance from grade. #2

In clothes closets, surface-mounted incandescent luminaires shall have ____ inches clearance from the nearest point of storage space.

12 in. This is measured horizontally and changes to 6 inches for surface mounted/recessed fluorescent and recessed incandescent fixtures. E4003.12 Luminaries in clothes closets.

Electrical services within the scope of the IRC are limited to ____-volt, 0- to ____-ampere, single phase systems.

120 volt / 240 ampere 400 E3401.2 Scope.

Where a branch circuit or a feeder supplies a continuous load it shall have an ampacity of ___ percent of the continuous load.

125% A continuous load is something that will run for more than 3 hour, like an A/C unit. E3701.2 Branch-circuit and feeder ampacity.

Flexible cords for kitchen waste disposals shall be ____ inches minimum and ____ inches maximum length.

18 in. 36 in. E4101.3 Flexible Cord Length.

In calculating box fill each No. 12 AWG conductor shall require ___ cubic inches free space within the box.

2.25 cu. in. Review Table E3905.13.1 and Table E3905.13.2.1 E3905.12.2.1 Volume Allowance Required Per Conductor.

A minimum of one ____-ampere-rated branch circuit shall be provided for receptacles located in the laundry area and shall serve only receptacle outlets in the laundry area.

20 amp Receptacles for appliances like the washer shall be located within 6' of the appliance location. See Section E3901.5 E3703.3 Laundry circuit.

Kitchen counter top receptacles shall be installed so that no point along the wall line is more than ____ inches from a receptacle.

24 in. The 2/4 rule. 2 feet from any opening and every 4 feet after that. E3901.4.1 Wall counter space.

At least one receptacle outlet in bathrooms is required to be within ____ inches of each lavatory basin.

36 in. E3901.6 Bathroom.

Interior metal water piping located more than ____ feet from the point of entrance to the building shall not be used as part of the grounding electrode system.

5 ft. E3608.1.1 Metal underground water pipe.

There shall be a wall switch at each floor to control stairway lighting where the stairway has ____ or more risers.

6 E3903.3 Additional locations.

Receptacles shall be installed so that no point along the floor in any wall space is more than ____ feet, measured horizontally, from an outlet in that space.

6 ft. The 6/12 rule. 6' from any door opening and ever 12' after that measured along the wall. E3901.2.1 Spacing.

Switches shall not be more than ____ feet, ____ inches above the floor or working platform, when the switch is in its highest position.

6 ft., 7 in. Also applies to circuit breakers used as switches. E4001.6 Access.

A luminaire that weights more than ____ pounds or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lamp holder.

6 lbs. E4004.4 Supports.

Rod and pipe electrodes shall not be less than ____ feet in length.

8 ft. E3608.1.4 Rod and pipe electrodes.

Overhead service-drop conductors shall have a vertical clearance of not less than ____ feet above the roof surface.

8 ft. Review all of the exceptions in this section. E3604.2.1 Above roofs.

The rating of any one cord- and plug- connected utilization equipment shall not exceed ____ percent of the branch circuit ampere rating.

80% E3702.3 Fifteen- and 20-ampere branch circuits.

Conductors in NM cable assemblies shall be rated at ___°C.

90°C Watch out here, it also reads the 90°C rating shall be permitted to be used for ampacity correction and adjustment purposes provided that the final corrected or adjusted ampacity does not exceed that for a 60°C rated conductor. E3705.4.4 Conductors of type NM cable.

All mechanical elements used to terminate a grounding electrode conductor or bonding jumper to the grounding electrodes shall be ____.

Accessible When not buried or concrete encased. E3611.2 Accessibility.

Connected to establish electrical continuity and conductivity.

Bonded (Bonding) Know all of the bonding and grounding definitions. E3501 Definitions.

Unused Openings in cabinets and panel boards shall be effectively ____ to afford protection equivalent to that of the wall of the cabinet.

Closed This means you can not have any open knockouts. E3906.4 Unused openings.

Electrical panel boards and overcurrent devices shall not be located in ________.

Clothes closets, bathrooms or over the steps of a stairway. E3405.4 Location of working spaces and equipment.

Bonding shall be provided where necessary to ensure electrical ____.

Continuity. ...and the capacity to conduct safely and any fault current likely to imposed. E3609.1 Bonding. General.

Branch circuit ratings for space-heating and water-heating appliances shall be considered ____ loads.

Continuous E3702.10 Branch circuits serving heating load.

The ____ shall not be considered as an effective ground-fault current path.

Earth E3908.5 Earth as a ground-fault current path.

The markings for identification of disconnecting means shall have the durability to withstand the ____ involved.

Environment E3404.12 Identification of disconnecting means.

Receptacles installed on 15- and 20- ampere-rated branch circuits shall be of the ____ type.

Grounding E4002.2 Grounding type.

Ceiling -suspended paddle fans shall be supported ____ of the outlet box.

Independently E4101.6 Support of ceiling-suspended paddle fans.

Cords that supply swimming pool equipment shall have a copper equipment grounding conductor not small than No. ____ AWG.

No. 12 AWG E4202.2 Flexible cords. #1

A minimum of ____ branch circuit shall be provided to supply the bathroom receptacle outlet(s). Such circuits shall have not other outlets.

One 20-amp Read the exception in this section for supplying each bathroom with its own 20 ampere circuit. E3703.4 Bathroom branch circuits.

Above-ground service-entrance cables subject to physical damage shall be protected by Schedule ____ PVC conduit.

Sch. 80 PVC Or rigid metal conduit, intermediate conduit, electrical metallic conduit or other approved means. E3605.5 Protection of service cables against damage.

Insulated conductors and cables exposed to direct rays of sun shall be listed and labeled ____ _____.

Sunlight resistant E3802.3.3 Locations exposed to direct sunlight.

Recessed incandescent fixtures shall have ___ protection.

Thermal Read the two exceptions in this section. E4003.5 Recessed incandescent luminaries.

Nonmetallic boxes shall be used only with cable wiring methods with entirely nonmetallic-sheaths, flexible cords and nonmetallic raceways.

True Think plastic boxes. Read the 2 exceptions in this section. Review Tables E3904.6(1) through E3904.6(10) E3905.3 Nonmetallic boxes.

A minimum of ____ 20-ampere-rated branch circuits shall be provided to serve all wall and floor receptacle outlets located in the kitchen, pantry, breakfast area and dining area or similar area of a dwelling.

Two E3703.2 Kitchen and dining area receptacles.

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 ___ ____.

Warning ribbon That is placed in the trench at least 12 inches above the underground installation. E3803.2 Warning ribbon.

Where raceways are installed in wet locations above grade, the interior of such raceways shall be considered to be a ____ location.

Wet Insulated conductors and cables installed in raceways in wet locations above grade shall be listed for use in wet locations. E3802.7 Raceways in wet locations above grade.