40 hour Electrical-TREC

Over-current Protection ratings

Copper: 14 AWG- 15 amps 12 AWG- 20 amps 10 AWG- 30 amps Aluminum/Copper-CLAD 12 AWG- 15 amps 10 AWG- 25 amps 8 AWG- 30 amps

Central Furnace

Cord and Plug connection not OK, central furnace not listed as approved

Service conductors (above roof exception)

EXCEPTIONS: 1. where the roof has a slope of 4:12 pitch or greater the minimum clearance shall be 3 feet 2. A 10 feet clearance above roof used as walkable deck 3. The minimum clearance above only the overhanging portion of the roof shall be a minimum 18 inches (overhanging eave)

Maximum Number of Disconnects

The service disconnecting means shall consist of not more that 6 switches or circuit breakers mounted in a single enclosure or in a group of separate enclosures.

Luminaire Supports

luminaire and lamp holders shall be securely supported. A luminaire that weighs more that 6 pounds or exceeds 16 inches in any dimension shall not be supported by the screw shell of a lamp holder.

Disposer Cord

minimum 18 inches maximum 36 inches

Unit Switch

that opens all hot conductors-OK

Pool receptacles (GFCI protection)

1. 15 amp and 20 amp receptacles for pool pump motors require GFCI protection. 2. receptacles rated 30 amps or less located within 10 feet of inside walls of spas and hot tubs installed indoors, shall be GFCI protected.

Overhead conductor clearances

1. 22.5 feet of clearance in any direction to the water level, edge of water surface, base of diving platform, or permanently anchored raft shall be. 2. 14.5 feet of clearance in any direction to the diving platform. 3. 10 feet of clearance for service drop horizontally of pool is required including: observations stands, towers and platforms.

GFCI & AFCI protection (required areas)

1. All bathroom receptacles 2. All garage and accessory building receptacles 3. all receptacles serving kitchen countertops 4. wet bar countertop receptacle within 6 feet of sink 5. Non-readily accessible OR single receptacle in dedicated space 6. receptacles installed in unfinished basements

Lighting outlet (locations)

1. Hallways, stairways and attached garages 2. inside detached garages with power. 3. outside each exterior door with grade level access. 4. garage vehicle door does not require light 5. 3-way switch required for interior stairs that have 6 risers or more.

Pool receptacle location

1. at least one 125 volt, 15 amp or 20 amp receptacle supplied by a general purpose branch circuit shall be located a minimum 6 feet from and not more than 20 feet from inside wall of pools and outdoor spas and hot tubs. 2. Receptacles located within 20 feet of inside walls of pools and outdoor spas and hot tubs shall be protected by GFCI

Pool Equipment (bonding)

1. bond together pool shell, metal equipment for pumps, pool covers, underwater light forming shelf and all metal less than 5 feet of pool. 2. bonding wire minimum solid 8 AWG copper wire.

Bathtub and Shower (light fixtures)

1. cord connected light fixtures, chain, cable or cord suspended light fixtures lighting track. pendants, and ceiling fans shall not have any parts located within a zone measured 3 feet horizontally and 8 feet vertically from the top of a bathtub rim or shower stall threshold. 2. light fixtures within the actual outside dimension of the bathtub or shower to a height of 8 feet vertically shall be marked for damp locations.

Pool pump cord (flexible cord)

1. flexible maximum cord length is 3 feet 2. pool motors must be grounded using minimum copper 12 AWG wire and shall terminate in a ground-type attachment plug.

Hydromassage bathtubs (GFCI)

1. hydromassage bathtubs and their associated electrical components shall be supplied by individual branch circuits and protected by readily accessible GFCI.(required) 2. All receptacles not exceeding 30 amps and located within 6 feet of hydromassage tubs shall be protected by GFCI

GFCI & AFCI Protection (EXCEPTIONS)

1. outdoor receptacles that are not readily accessible and are supplied from a dedicated branch circuit for electric, no melting or deicing, equipment shall be permitted to be installed without GFCI protection for personnel. 2. a receptacle supplying only a permanently installed fire alarm or burglar alarm system.

Light fixture (pool lights)

1. pool light fixture terminals shall be directly connected to the panel board enclosure. the pool light fixture grounding conductor shall be installed without joint splice. 2. all through wall lighting assemblies-wet , dry or no niche light fixtures shall be connected to an insulated copper equipment grounding conductor (EGC) sized no smaller than 12 AWG

Pool receptacles (water pump)

1. receptacles that provide power for water pump motors or other loads directly related to circulation and sanitation system shall be permitted to be located between 6 feet and 10 feet from inside walls of pools and outdoor spas and hot tubs. Where receptacle is single and of the locking and grounding type and protected by GFCI and (twist lock) 2. If pool is less than 10 feet from the house, receptacles may be greater that 6 feet from pool

Recessed Incandescent lighting

1. recessed incandescent or recessed fluorescent light fixtures with a completely enclosed light source shall be installed in the wall or ceiling provided that there is minimum clearance of 6 inches.

Recessed Lights (type IC)

1. recessed lights that are Type IC shall be permitted to be in contact with combustible materials and insulation 2. non-IC rated recessed lights should be spaced 1/2 inch from combustible materials and 3 inches from insulation

Equipment working Space (energized equipment)

1. the working space in the direction of access to panel boards and live parts shall be not less than 36 inches in depth and not less 30 inches wide in front of the electrical equipment 2. the work space shall be clear and shall extend from the floor to a height of 6.5 feet

Central Air Conditioner (disconnect)

1. within sight of motor 2. in sight of condenser no further than 50 feet 3. disconnect clearance minimum of 30 inches wide , 36 inches deep

Outlet (defintion)

A point on the wiring system at which current is taken to supply utilization equipment. (i.e. receptacle, lighting, or smoke alarm outlet)

bonding (hot tubs and spas)

All metal surfaces that are within 5 feet of the inside walls of the hot tub or spa and that are not separated from the hot tub or spa area by a permanent barrier.

Island/peninsular countertop (exception)

Exception: receptacle outlets shall be permitted to be united not more that 12 inches below the countertop in construction designed for the physically impaired and for island and peninsular countertops where the counter top is flat across its entire surface and there are no means to mount a receptacle 20 inches above the countertop. Receptacles mounted below countertop in accordance with this exception shall not be located where the countertop extends more that 6 inches beyond its support base.

In Wall (installation of boxes, conduit bodies and fittings)

In walls or ceilings of concrete, tile or other noncombustible material, boxes employing a flush type cover or faceplate shall be installed so that the front edge of the box, plaster ring, extension ring, or listed extender will not be set back from the finished surface more than 1/4 inch. in walls and ceilings constructed of wood or other combustible material, boxes, plaster rings, extension rings and listed extenders shall be flush with the finished surface or project there from.

Light Fixtures (clothes closet)

Incandescent light (bulbs) fixtures with open or partially enclosed lamps and pendant light fixtures or lamp holders shall be prohibited. (in clothes closets)

Main bonding jumper

Neutral/Grounding bar shall be Bonded in the service equipment

Clean surfaces (equipment bonding)

Non-conductive coatings such as paint, lacquer and enamel on equipment to be grounded shall be removed from threads and other contact surfaces to ensure electrical continuity or the equipment shall be connected by means of fittings designed so as to make such removal unecessary.

Wiring (L&L)

Nonmetallic (NM) never suitable as flexible cord or with plug

Ungrounded (definition)

Not connected to ground or to a conductive body that extends the ground connection.

Service Drop (definition)

The overhead conductors between the utility electric supply system and the service point.

Hot tubs ( flexible cords)

a listed packaged spa or hot tub installed outdoors that is GFCI protected shall be permitted to be cord and plug connected provided that such cord does not exceed 15 feet in length.

Supplemental water pipes (grounding)

a metal underground water pipe shall be supplemented by an additional electrode. The supplemental electrode shall be bonded to grounding the grounding electrode conductor, the grounded service entrance conductor, a non flexible grounded service raceway.

Kitchen and Dining receptacles

a minimum of 2-20 amp rates branch circuits shall be provided to serve all wall and floor receptacle outlets located in the kitchen, pantry, breakfast area. Kitchen countertop receptacles shall be served by a minimum of 2-20 amp rated branch circuits, which shall be permitted to supply other receptacle outlets in same area including receptacle outlets for refrigeration appliances.

hot tubs ad spas (receptacles)

a minimum of one 125 volt receptacle shall be located between 6 feet and 10 feet from inside walls of spas and hot tubs

Laundry Circuit

a minimum of one 20 amp rated branch circuit shall be provided for receptacles located in the laundry area and shall serve only receptacle outlets located in laundry area

Air conditioning (disconnecting means)

a readily accessible disconnect within sight from unit as the old allowable means.

Appliances (insight or lockable breaker switch-EXCEPTION)

a unit switch with a marked off position that is a part of an appliance and disconnects all underground conductors shall be permitted as the disconnecting means and the switch or circuit breaker serving as the other disconnecting means shall be permitted to be out of sight from the appliance.

hot tubs and spas (GFCI protection)

all 125 volt receptacles rated 30 amps or less and located within 10 feet from spa should be GFCI protected

AFCI locations

all branch circuits that supply 120 volt, single phase, 15 amp and 20 amp outlets installed in family rooms, dining rooms, living rooms, libraries, dens, bedrooms, sunrooms, recreations rooms, closets, hallways and similar rooms or areas shall be protected by a combination type AFCI installed to provide protection of the branch circuit.

Hydromassage bathtub (bonding)

all metal piping systems and all grounded metal parts in contact with the circulating water shall be bonded together using insulated, covered or bare solid copper bonding jumper not smaller than 8 AWG. EXCEPTION: Double insulated (listed and labeled) equipment shall not be bonded.

Wall space

any space that is 2 feet (24 inches) or more in width, including space measured around corners, and that is unbroken along the floor line by doorways and similar openings, fireplaces and fixed cabinets.( any wall greater than 2 feet in habitable room requires receptacles)

Lighting outlets

at least one wall switch controlled lighting outlet shall be installed in every habitable room and bathroom. Exception: in other than kitchens and bathrooms, one or more receptacles controlled by a wall switch shall be considered equivalent to the required lighting outlet

Light switches Locations

at least one wall switch controlled lighting outlet shall be installed to provide illumination on the exterior side of each outdoor egress door having grade level access, including outdoor egress doors for attached/detached garages with electric power.

Bends (wiring)

bends shall be made so as not to damage the wiring method or reduce the internal diameter of raceways. (no sharp bends-bend radius minimum 5x's the cable diameter)

Boxes at luminare outlets

boxes used at luminaire or lamp holder outlets in a wall shall be marked on the interior of the box indicate the maximum weight of the luminaire or lamp holder that is permitted to be supported by the box in the wall, if other than 50 pounds

Branch circuits serving single motor

branch circuit conductors supplying a single motor shall have an ampacity minimum of 125% of the motor full-load current rating.

Breakers (L&L)

breakers shall be listed and labeled for panel board

Temporary Connection

building official shall have the authority to authorize and approve the temporary connection of the building or system to the utility, source of energy, fuel or power

Branch Circuits for heating

central heating equipment other than fixed electric space heating shall be supplied by an individual branch circuit. Exception: Permanently connected air conditioning equipment and auxiliary equipment directly associated with the central heating equipment such as pumps, motorized valves, humidifiers and electrostatic air cleaners, shall not be prohibited from connecting to the same branch circuit as the central heating equipment.

Wiring on load side of GFCI and transformers

conductors installed on a load side of a GFCI or transformer shall not occupy raceways, boxes or enclosures containing other conductors except where the other conductors are protected by GFCI or are grounding conductors.(or low voltage)

Service conductor (above roofs)

conductors shall have a vertical clearance of a minimum of 8 feet above the roof surface and shall be maintained for a distance of a minimum of 3 feet in all directions (if slope is less than 4:12 pitch)

Minimum cover requirements

direct burial of cables to earth is OK

Protection (direct buried wiring)

direct buried conductors and cables emerging from the ground shall be protected by enclosures or raceways extending from the minimum cover distance below grade required to a point at least 8 feet above finished grade. In no case shall the protection be required to exceed 18 inches below finished grade.

Switched receptacles

don't count unless "half hot"

Equipment Bonding(effective ground-fault current path)

electrical equipment and wiring and other electrically conductive material likely to become energized shall be installed in a manner that creates a low impedance circuit facilitating the operation of the overcurrent device or ground detector for high impedance grounded systems. Such circuit shall be capable of safely carrying the ma ground fault current likely to be imposed on it from any point on the wiring system where ground fault might occur to the electrical source. (GEC must provide effective GFC path)

Hydromassage bathtubs

electrical equipment shall be accessible without damaging the building structure or building finish.

Protection of equipment

equipment not identified for outdoor use and only for indoor use, such as "dry locations", "indoor use only" "damp locations" or enclosure type, shall be protected against damage from the weather during construction.

existing lighting outlets and light fixtures

existing light outlets and light fixtures that are located within 5 feet horizontally from inside walls of pools and outdoor spas and hot tubs shall be permitted to be located minimum 5 feet vertically above the max water level, provided that light fixtures and outlets are attached to the structure and are GFCI protected.

Dimmer switches

general use dimmer switches shall be used only to control permanently installed light fixtures except where listed for the control of the other loads and installed accordingly. (No dimmers controlling switched receptacles)

Methods of grounding conductor connection to electrodes (L&L)

ground clamps shall be listed for the materials if the grounding electrode and grounding electrode conductor and, where used on pipe, rod or other buried electrodes, shall also be listed for direct soil burial or concrete encasement.

Location of grounding electrode conductor connection (GEC)

grounding electrode conductor shall be connected to the grounded service conductor at any accessible point from the load end of the service drop. A grounding connection shall not be made to any grounded circuit conductor on the load side of the service disconnecting means.

Hallways (receptacle)

hallways of 10 feet or more shall have at least one receptacle outlet.

Damp and Wet Locations

in damp and wet locations, boxes, conduit bodies and fittings shall be placed or equipped so as to prevent moisture from entering or accumulating within the box, conduit or fitting. Boxes, conduit bodies and fittings installed in wet locations shall be listed for use in wet locations.

Lighting for outdoor pools

in outdoor pool, outdoor spas and outdoor hot tubs areas, light fixtures, lighting outlets and ceiling fans shall not be installed over the pool or over the area extending 5 feet horizontally from inside walls of pool except where no part of the light fixture or ceiling fan is less than 12 feet above the maximum water level.

Water heater, baseboard heater

in sight or lockable breaker or switch required (means of disconnect)

Metal underground water piping

interior metal water piping located more than 5 feet from the entrance to the building shall not be used as part of the grounding electrode system

Lighting for outdoor pool (GFCI)

light fixtures and outlets that are installed in the area extending between 5 feet and 10 feet from inside walls of pools and outdoor spas and hot tubs shall be protected by GFCI EXCEPT where such fixtures and outlets are installed not less than above the max water level and are attached to the structure.

Light fixtures ( pool)

light fixtures in walls shall be installed with the top of the fixture lens not less than 18 inches below the normal water level of the pool.

Junction boxes (pool)

located not less than 4 inches, measured from inside of the bottom of the box, above ground level, or pool deck, or not less than 8 inches above the maximum pool water level and shall be located not less than 4 feet from inside wall of pool, unless separated from the pool by a solid fence, wall or other permanent barrier.

Utility

minimum 18 inches of conductor at weather-head

Dishwasher and compactor cord

minimum 36 inches maximum 48 inches

AFCI protection

must be combination type UL listed

General installations (wiring)

nail plate required if cable is not less than 1-1/4 inches into stud face

Number of services

one and two- family dwellings shall be supplied with one service

Service Load

one family dwellings, the ampacity of the underground conductors shall be a minimum 100 amps, 3 wire. For all other service the amps shall be a minimum 60 amps

Noncombustible surfaces (installation of boxes, conduit bodies and fittings)

openings in noncombustible surfaces that accommodate boxes employing a flush type cover or faceplate shall be made so that there are no gaps or open spaces greater than 1/8th inch around the edge of the box. (exposed combustible finish-Electrical box extender might be needed)

Receptacle (corner sink)

receptacle are required behind corner sink if space is equal to or greater than 18 inches deep

Receptacles (spacing)

receptacles shall be installed so that no point measured horizontally along the floor line of any wall space is more than 6 feet from a receptacle outlet.

Electric Dryer

requires minimum 30 amp circuit breaker

One Building or other structure

service connectors supplying a building or other structure shall not pass through the interior of another building or other structure.

Marking of Service Equipment and disconnects

service disconnects shall be permanently marked as a service disconnect (meter base alone not considered service equipment)

Service Entrance

service entrance cable shall be secured 12 inches of service box and every 30 inches

Metal water piping bonding

shall be bonded to service equipment enclosure, the grounded conductor at the service, the grounding electrode conductor(GEC) where sufficient size, or to the one or more grounding electrodes used.

Nonmetallic boxes

shall be used only with cabled wiring methods with entirely nonmetallic sheaths, flexible cords and nonmetallic raceways

Clothes closet (storage Area)

storage space shall be defined as a volume bonded by the sides and back closet walls and planes extending from the closet floor vertically to a height of 6 feet or the highest clothes hanging rod and parallel to the walls at a horizontal distance of 24 inches from the sides and back of the closet walls and continuing vertically to the closet ceiling parallel to the walls at a horizontal distance of 12 inches or width of the shelf, whichever is greater.

Wiring methods (exception)

supported every 4.5 feet and 12 inches from box

clothes closest (surface lighting)

surface mounted incandescent or LED light fixtures with a completely enclosed light source shall be installed on a wall above the door or ceiling with a minimum clearance of 12 inches between light nearest point of storage space.

Hot tubs and spas (switches)

switching devices shall not be located within 5 feet of the spa

Branch Circuit for AC

the ampacity of the conductors supplying multi motor and combination load equipment shall not be less than the minimum circuit ampacity marked in the equipment. The branch circuit overcurrent device shall be size and type marked on the appliance. (wire and breaker size per name plate)

indoor pool location (enclosed)

the distance from the bottom of the light fixtures or ceiling fan to the maximum water level is minimum of 7.5 feet and GFCI protected

Multiwire branch circuits

wall conductors for multiwire branch circuits shall originate from the same panel board or similar distribution equipment. Disconnecting means: each multiwire branch circuit shall be provided with a means that will simultaneously disconnect all underground conductors as the point where the branch circuit originates. Grouping: the ungrounded and grounded circuit conductors of each multiwire branch circuit shall be grouped by cable ties or similar means in at least one location within the panel board or other point of origination. Example: 2 circuits sharing split duplex receptacles (e.g. disposer & dishwasher) requires handle tie on breaker

Nonmetallic-sheathed cable and boxes

where NM cable is used the cable assembly including the sheath shall extend into the box a minimum 1/4 inch through a nonmetallic sheathed cable knockout opening.

Cables in Accessible attics

where cables run across the top of floor joist or run within 7 feet or floor or floor joist across the face of rafters or studding, in attics and roof spaces that are provided with access, the cable shall be protected by guard strips that are at least as high as the cable. Where such spaces are not provided with access by permanent stairs or ladders, protection shall only be required within 6 feet of nearest edge of the attic entrance.

Length of Conductor for splice or termination

where conductors are to be spliced, terminated or connected to fixtures or devices, a minimum length of 6 inches of free conductor shall be provided at each outlet, junction or switch point. Where the opening to an outlet is less than 8 inches each conductor shall be long enough to extend at least 3 inches outside of such opening.

Protection (exposed cables)

where subject to physical damage, cables shall be protected by rigid metal conduit, intermediate metal conduit, electrical metallic tubing. Schedule 80 PVC rigid nonmetallic conduit, or other approved means.

receptacle Ratings (multi-outlet circuits)

1. where connected to a branch circuit supplying 2 or more receptacles or outlets, receptacles shall conform to the values of: Circuit/Receptacle Rating: 15 amp/ 15amps 20 amp/ 15 or 20 amp 30 amp/ 30 amp 40 amp/ 40 or 50 amp 50 amp/ 50 amp

Grounded Conductor

Insulated grounded conductors of sizes 6 AWG or smaller shall be identified by continuous white or gray outer finish or by 3 continuous white stripes on other than green insulation along the entire length of the conductors. Conductors of sizes 4 AWG or larger shall be identified either by a continuous white or gray outer finish or by 3 continuous white stripes on other than green insulation along its entire length.

Bathroom branch circuits

a minimum of one-20 amp branch circuits shall be provided to supply bathroom receptacle outlets. Such circuits shall have no other circuits. Exception: Where the 20 amp circuit supplies a single bathroom, outlets for other equipment within the same bathroom shall be permitted to be supplied.

Flexible cord (appliances)

a recepeticale for a cord and plug connected range hood shall be supplied by an individual branch circuit.

Damp locations (receptacle)

a receptacle installed outdoors in a location protected from the weather or in other damp locations shall have an enclosure for the receptacle that is weatherproof when the receptacle cover(s) is closed and an attachment plug cap is not inserted.(receptacles listed weather resistant)

Wall countertop space

a receptacle outlet shall be installed at each wall countertop space 12 inches or wider. Receptacles outlets shall be installed so that no point along the wall line is more than 24 inches, measured horizontally from a receptacle outlet in that space. Exception: receptacle outlets shall not be required on a wall directly behind a range, counter-mounted cooking unit of sink in the installation.

bathtub/shower space (receptacle)

a receptacle shall not be installed within or directly over a bathtub or shower stall.

Appliances listed for cord-and-plug

a separable connector or attachment plug and receptacle provided with access(ible)

Listing and labeling

electrical material, components, devices, fixtures and equipment shall be labeled and listed in accordance with manufactures installations instruction (AMI)

small appliance (refrigerator)

exception: receptacle outlet for refrigerator appliance shall be permitted to be supplied an individual branch circuit greater than 15 amps

Splices (wiring)

flexible cord shall be used only in continuous lengths without splices or taps

Concrete Encased Electrode

one or more bare or zinc galvanized or other electrically conductive coated steel reinforced bars or rods not less than 1/2 inch. installed in one continuous 20 feet length (UFER= 20 feet #4 rebar)

Circuit Breaker (L&L)

only one wire per breaker unless listed and labeled for 2 wires

bonding other metal piping

where installed in or attached to a building or structure, metal piping systems, including gas piping, capable of becoming energized shall be bonded to the service equipment enclosure, the grounded conductor at the service, the grounding electrode conductor where sufficient size, or to the one or more grounding electrodes used.

Dishwasher and Food disposal

(should) not be on same circuit

Service conductor and grounding electrode conductor (GEC)

1. Where the sole grounding electrode system is a ground rod or pipe the GEC shall not be required to be larger than 6 AWG copper or 4 AWG Aluminum. 2. Where the sole GEC is the footing steel, the GEC shall not be required to be larger than 4 AWG copper conductor.

bathroom receptacles

1. at least one wall receptacle outlet shall be installed in bathrooms and such outlet shall be located within 36 inches(3 feet) of the outside edge of each lavatory basin. 2. the receptacle outlet shall be located on a wall or partition that is adjacent to the lavatory basin location, located on the countertop, or installed on the side or face of the basin cabinet not more than 12 inches below the countertop.

Circuit breakers (locations)

1. be installed so that the center of the grip of the operating handle of the switch or circuit breaker is not more than 6 feet 7 inches 2. No panels in clothes closets or bathrooms 3. not to be located over steps of a stairway. 4.Be ready accessible 5. not be located where they will be exposed to physical damage

Tamper resistant receptacles

125 volt, 15 amp and 20 amp receptacles shall be listed tamper-resistant receptacles

The minimum size of conductors for feeders and branch circuits should be?

14 AWG copper and 12 AWG aluminum.

Above Roof ( drip loop)

drip loop shall be below weatherhead

Other outlets prohibited

2 or more small appliance branch circuits shall have no other outlets.(no lights or) Exceptions: 1. a receptacle installed solely for electrical supply to and support of an electric clock in any of the room. 2. receptacles installed to provide power for supplemental equipment and lighting on gas-fired ranges, ovens, and counter-mounted cooking units.

Kitchen Outlets

20 amp circuits for countertops and wall receptacles

Service Panel (L&L)

shall be listed and labeled as suitable for service

Clamp conduit

shall be within 3 feet of service box

Service conductor and grounding electrode conductor

8 AWG grounding electrode conductor shall be protected with rigid metal conduit, intermediate metal conduit, rigid PVC nonmetallic conduit, rigid thermosetting resin non metallic conduit, electrical metallic tubing or cable armor (in race way)

Intersystem Bonding Termination

A device that provides a means for connecting intersystem bonding conductors for communications systems to the grounding electrode system. provide accessible external terminal bar with minimum 3 terminals to bond phone and CATV. The bar not to interfere with opening service enclosure

All electrodes

All electrodes that are present at each building or structure served shall be bonded together to form the grounding electrode system.(water piping, rod Ufer)

Panelboard circuit identification

Breaker and fuse labeling on panel must distinguish their use from all other circuit functions.

Branch Circuit conductor size/amp

Conductors/Amp Rating: 14 AWG- 15 amps 12AWG- 20 amps 10 AWG- 30 amps

Window Unit cord length

Max cord length: 120 volt- 10 feet 240 volt- 6 feet

receptacle outlet location (countertop)

Receptacle outlets installed to serve the counter cannot be installed higher than 20 inches above the countertop. Receptacle outlets installed to serve the counter can be installed no more than 12 inches below the countertop or work surface and only if the countertop extends 6 inches or less beyond its support base.

Interior living space

Typical 1 circuit per 500 sq ft

Service mast as supports (no unsupported couplings above the roof)

Where service mast is used for the support of service drop conductors, it shall be of adequate strength or be supported by braces or guys to withstand the strain imposed by the service drop. Only power service drop conductors shall be permitted to be attached to a service mast

Damp and Wet locations (panelboard)

a 1/4 inch air space required behind surface-mounted metal panel in a damp or wet locations

HVAC outlet

a 125 volt, single phase, 15 amp or 20 amp receptacle outlet shall be installed at an accessible location for the servicing of heating, air-conditioning and refrigeration equipment. The receptacle shall be located on the same level and within 25 feet of the equipment

Load-side grounded conductor neutral

a grounded conductor shall not be connected to normally noncurrent-carrying metal parts of equipment, to equipment grounding conductors, or be reconnected to ground on the load side of the service disconnecting means. (subpanel neutrals NOT bonded to enclosure and grounds)

Basement and garages

at least on receptacle shall be installed in each basement and in each attached garage and in each detached garage or accessory building that is provided with electrical power.

Island/peninsular countertop spaces

at least one receptacle outlet shall be installed at each island/peninsular countertop space with a long dimension of 24 inches or greater and short dimension of 12 inches or greater.

Interior metal water pipping installation (bond)

bond around removable equipment. Continuity of grounding path or the bonding connection to interior pipping shall not rely on water meters, filtering devices and similar equipment.

Grounded conductor terminations

each grounded conductor shall terminate within the panel board on an individual terminal that is not also used for another conductor (each neutral requires individual terminal) except: grounded conductors of circuits with parallel conductors shall be permitted to terminate on a single terminal where the terminal is identified for connection of more than one conductor

Multiwire circuits

each multiwire branch circuit shall be provided with a means that will simultaneously disconnect all ungrounded conductors at the point where the branch originates. (handle tie or single handle)

All equipment approval

electrical materials, components and equipment requires approval from AHJ (local authority)

Clearances on buildings

open conductors and multi-conductors cables without an overall outer jacket shall have a clearance of a minimum of 3 feet from the sides of doors, porches, decks, stairs, ladders, fire escapes and balconies and from the sides and bottom of windows that open. 1. maintain clearance above decks and stairs for 3 feet past edge 2. Maintain required clearance for 3 feet past roof edge Exception: clearance not required between window and service entrance for enclosed cable or conductors in raceway

Vertical Clearances from grade

overhead conductors shall have the following minimum clearances from final grade: 1. 10 feet minimum to bottom of drip loop 2. 10 feet minimum above area accessible only to pedestrians 3. 12 feet above residential property and driveways 4. 18 feet above public streets, alleys, or truck parking areas.

Minimum branch circuit for ranges

ranges with a rating of 8.75kVA or more shall be supplied by a branch circuit having a minimum rating of 40 amps

Warning ribbon

underground service conductors that are NOT encased in concrete and that are buried 18 inches or more below grade shall have their locations identified by a warning ribbon that is placed in the trench not less than 12 inches above the underground installation

15 amp and 20 amp (wet locations)

where installed in a wet location, 15 amp and 20 amp, 125 volt and 250 volt receptacles shall have an enclosure that is weatherproof whether or not the attachment plug cap is inserted. non locking receptacles shall be listed weather-resistant type. (bubble cover required if unattended)

Boxes at fan outlets

1. outlet boxes and outlet box systems used as the sole support of ceiling suspended fans shall be marked as suitable for this purpose and shall support ceiling suspended fans that weigh more than 70 pounds. 2. for outlet boxes and outlet box systems designed to support ceiling suspended fans that weigh more than 35 pounds, the required marking shall include the maximum weight to be supported. 3. Fans over 70 pounds require independent support

Rod and pipe electrodes

1. rod and pipe electrodes minimum of 8 feet in length. 2. rod and pipe electrodes shall be installed/driven so that 8 feet of length is in contact with the soil. The upper end of the electrodes shall be flush with or below ground level .

Outdoor outlets

at least one receptacle outlet that is accessible at grade level and located not more than 6 feet 6 inches above grade, shall be installed outdoors at the front and back of each dwelling unit having direct access to grade. Balconies, decks and porches that are accessible from inside of the dwelling unit shall have at least one receptacle outlet installed within the perimeter of the balcony, deck, or porch. The receptacle shall be located not more that 6 feet 6 inches above.

Protection of Equipment

equipment not identified for outdoor use and equipment identified only for indoor use shall be protected against damage from the weather during construction.

Branch Circuits serving multiple loads

general purpose branch circuits shall supply outlets, appliances, equipment or receptacle outlets, and combinations of such. Multi-outlet branch circuits serving lighting or receptacles shall be limited to a maximum branch-circuit rating of 20 amps.

Location of Grounding electrode

grounding electrode conductor shall be connected to the grounded service conductor at any accessible point from the load end of the service drop. A grounding connection shall not be made to any grounded circuit conductor on the load side of the service disconnecting means. Exception: separate building with no parallel metal path between buildings.

Electric baseboard heaters

permanently installed electric baseboard heaters equipped with factory installed receptacle outlets, or outlets provided as a separate assembly by the manufacturer shall be permitted as the required outlet or outlets for the wall space utilized by such permanently installed heaters. Such receptacle outlets shall not be connected to the heater circuits. baseboard heaters come in two varaties 120 volt and 240 volt. They should not be placed under outlets where cords will drape over the baseboard heater and receptacles in baseboard heaters not on same circuit