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Set of electrical building wiring regulations
An electrical code is a term for a set of regulations for the design and installation of electrical wiring in a building. The intention of such regulations
Electrical_code
Electrical wiring standard in the United States
The National Electrical Code (NEC), or NFPA 70, is a regionally adoptable standard for the safe installation of electrical wiring and equipment in the
National_Electrical_Code
Standard published by the Canadian Standards Association
The Canadian Electrical Code, officially CSA C22.x, informally CE Code, is a collection of standards published by the Canadian Standards Association pertaining
Canadian_Electrical_Code
United States standard
The National Electrical Safety Code (NESC) or ANSI Standard C2 is a United States standard of the safe installation, operation, and maintenance of electric
National Electrical Safety Code
National_Electrical_Safety_Code
Tube used to protect and route electrical wiring in a building or structure
of electrical equipment. Its use, form, and installation details are often specified by wiring regulations, such as the US National Electrical Code (NEC)
Electrical_conduit
Specialized construction professional
National Electrical Code (NEC) to ensure systems work in a safe manner. The NEC is a widely adopted model code for the installation of electrical components
Electrical_contractor
Building room for electrical equipment
construction of electrical rooms will be controlled by local building code and electrical code regulations. Requirements for an electrical room relate to
Electrical_room
Circuit breaker that protects against intermittent faults associated with arcing
electrical codes for circuits feeding electrical outlets in residential bedrooms since the beginning of the 21st century; the US National Electrical Code
Arc-fault_circuit_interrupter
Electrical installation of cabling
Electric power distribution Electrical code Electrical conduit Electrical room Electrical wiring in North America Electrical wiring in the United Kingdom
Electrical_wiring
Function and characteristics of building electrical systems in North America
topics of electrical power transmission and distribution. Although much of the electrician's field terminology matches that of the electrical codes, usage
Electrical wiring in North America
Electrical_wiring_in_North_America
Standard for protection against intrusion of dust and water
IP code represents. The first digit indicates the level of protection the enclosure provides against access to hazardous parts (e.g., electrical conductors
IP_code
Estimation method in electrical engineering
In electrical engineering, Neher–McGrath is a method of estimating the steady-state temperature of electrical power cables for some commonly encountered
Neher–McGrath_method
Electrical equipment in places where fire or explosion hazards may exist
publishes analogous standards in RP 500 and RP505. NFPA 70, the National Electrical Code (NEC), defines area classification and installation principles. NEC
Electrical equipment in hazardous areas
Electrical_equipment_in_hazardous_areas
Electrical connector for solar panels
not accidentally disconnect when the cables are pulled. The National Electrical Code (NEC) and the UL6703 standard for PV connectors specify that connectors
MC4_connector
Component of an electricity supply system housing fuses
configuration appears to display two violations of the current U.S. National Electrical Code: the main panel does not have a grounding conductor (here it is fed
Distribution_board
Color code to indicate values of electronic components
or industry. Building wiring under the US National Electrical Code and the Canadian Electrical Code is identified by colors to show energized, neutral
Electronic_color_code
Method of protection from electric shock
Electrical bonding is the practice of intentionally electrically connecting all exposed metal items not designed to carry electricity in a room or building
Electrical_bonding
Electrical safety device that provides overcurrent protection
electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its
Fuse_(electrical)
High-current power connector
Camlocks A camlock or cam-lock is an interchangeable electrical connector, often used in temporary electrical power production and distribution, predominantly
Camlock_(electrical)
Assembly of one or more wires running side by side or bundled
An electrical cable is an assembly of one or more wires running side by side or bundled, which is used as an electrical conductor to carry electric current
Electrical_cable
Type of electrical wiring
non-metallic–sheathed cable. This type of connection is forbidden by the National Electrical Code, and a junction box should have been used. In many older K&T installations
Knob-and-tube_wiring
Power plugs and receptacles used in North America and some other regions
relevant standards and codes—NEMA, the US National Electrical Code, the Canadian Electrical Code, and the National Electrical Contractors Association's
NEMA_connector
Construction standards for buildings
the main codes are the International Building Code or International Residential Code [IBC/IRC], electrical codes and plumbing, mechanical codes. Fifty states
Building_code
Enclosure housing electrical connections
An electrical junction box (also known as a "jbox") is an enclosure housing electrical connections. Junction boxes protect the electrical connections from
Junction_box
Unit of area
})^{2}} In Canada and the United States, the Canadian Electrical Code (CEC) and the National Electrical Code (NEC), respectively, use the circular mil to define
Circular_mil
Electrical safety device used in household wiring
interrupter (GFCI) is an electrical safety device, more specifically a form of earth-leakage circuit breaker, that interrupts an electrical circuit when the current
Residual-current_device
Tradesperson specializing in electrical wiring
have passed an exam to demonstrate superior knowledge of the National Electrical Code, or NEC. Service electricians are tasked to respond to requests for
Electrician
Type of electrical connection
ISBN 978-0-07-177017-0. ANSI/NFPA 70: National Electrical Code (2005 ed.). 2005. ANSI/NFPA 70: National Electrical Code (2015 ed.). 2015. sea.siemens.com
High-leg_delta
Early system for transmitting text over wires
communication, using a modified form of Morse's code that had been developed for German railways. Electrical telegraphs were used by the emerging railway
Electrical_telegraph
Fire and electrical protection standard on employees
best known for publishing the National Electrical Code (NFPA 70). NFPA 70E addresses employee workplace electrical safety requirements. The standard focuses
NFPA_70E
Interconnection of two or more electrical switches
multiway switching is the interconnection of two or more electrical switches to control an electrical load from more than one location. A common application
Multiway_switching
Electronic component
A capacitor is a device that stores electrical energy by accumulating electric charges on two closely spaced surfaces that are insulated from each other
Capacitor
Modular approach to electrical wiring
Electrical busbar systems (sometimes simply referred to as busbar systems) are a modular approach to electrical wiring, where instead of a standard cable
Electrical_busbar_system
Part 3-California Electrical Code Part 4-California Mechanical Code Part 5-California Plumbing Code Part 6-California Energy Code (this section is commonly
California Building Standards Code
California_Building_Standards_Code
Transmission of language with brief pulses
amateur radio Radio code – Conventions used in wireless telegraphy Tap code – Encoding for text messages Telegraph key – Electrical switch used to transmit
Morse_code
Type of adapter
safer and more reliable alternative identified in the US and Canadian electrical codes is to replace the outlet with a Ground Fault Circuit Interrupter (GFCI)
Three-prong_adaptor
Tidily securing cables
Cable glands for electrical installations Smith, Robert L. (2004). Electrical Wiring Industrial: Based on the 2005 National Electrical Code. Delmar. p. 52
Cable_management
Electrical connector used to connect solar panels together
generally screw terminals located under a removable panel, but due to electrical code restrictions this could not be assembled except by a licensed electrician
Tyco_Solarlok
Electrical grounding for safety or function
from a safety point of view as for domestic users. The US National Electrical Code permitted the use of the supply neutral wire as the equipment enclosure
Earthing_system
Branch of engineering
Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems that use electricity
Electrical_engineering
Honduras". Electrical Safety First. Retrieved 27 December 2025. "Code of Practice for the Electricity (Wiring) Regulations" (PDF). Electrical and Mechanical
Mains_electricity_by_country
List of definitions of terms and concepts used in electrical engineering and electronics
This glossary of electrical and electronics engineering is a list of definitions of terms and concepts related specifically to electrical engineering and
Glossary of electrical and electronics engineering
Glossary_of_electrical_and_electronics_engineering
Illegal connection of ground and neutral conductors
This has been prohibited in new installations since the 1996 National Electrical Code (upon local adoption by legislation or regulation). Existing installations
Bootleg_ground
Type of single-phase electric power distribution
installations of sensitive scientific instruments. The U.S. National Electrical Code provides rules for technical power installations. The systems are not
Split-phase_electric_power
Low amounts of electrical volts
transmission and distribution, compared with electronics design. Electrical safety codes define "low voltage" circuits that are exempt from the protection
Low_voltage
Nonprofit building standards organization
several companion codes such as the National Electrical Code, NFPA 101 Life Safety Code, Uniform Plumbing Code, Uniform Mechanical Code, and NFPA 1. Unlike
International_Code_Council
Canadian standards development organisation
CSA has developed many relevant standards in the electrical field, including the Canadian Electrical Code (CEC). CSA C22.2 standard for Rigid Types EB1 and
CSA_Group
Electrical-cable-supporting structure
instead of pulling them through a pipe. According to the National Electrical Code standard of the United States, a cable tray is a unit or assembly of
Cable_tray
US fire protection standard
companies. The Life Safety Code is coordinated with hundreds of other building codes and standards such as National Electrical Code NFPA 70, fuel-gas, mechanical
Life_Safety_Code
Connector used to connect to mains power
to mains electricity to supply them with electrical power. A plug is the connector attached to an electrically operated device, often via a cable. A socket
AC_power_plugs_and_sockets
Type of electrical power cable
the United States the domestic voltage is 120 V, and the National Electrical Code (NEC) prohibits the use of extension cords in a 20 A circuit unless
Extension_cord
Maximum current that can be applied continuously without harming a device or system
portmanteau for ampere capacity, defined by United States National Electrical Codes. Ampacity is defined as the maximum current, in amperes, that a conductor
Ampacity
Type of electrical wiring
Aluminum building wiring is a type of electrical wiring for residential construction or houses that uses aluminum electrical conductors. Aluminum provides a
Aluminum_building_wiring
Adhesive electrical insulation
Goodman and Rodney G. Brown (3M). "Electrical Taping Skills: A Lost Art?", EC&M, p.2. "Electrical Tape Color Code Chart". Shurtape. 15 May 2017. Retrieved
Electrical_tape
Brand of electrical circuit breakers, 1950–1980
breakers, and panels, do not meet the requirements of the National Electrical Code (NFPA 70) and Underwriters Laboratories, and should be replaced. According
Stab-Lok
Type of two-dimensional barcode
A QR code, short for quick-response code, is a type of two-dimensional matrix barcode invented in 1994 by Masahiro Hara of the Japanese company Denso
QR_code
Physiological reaction or injury caused by electric current
An electrical injury (electric injury) or electrical shock (electric shock) is damage sustained to the skin or internal organs on direct contact with
Electrical_injury
International standard on electrical installations of buildings
Low-voltage electrical installations is the International Electrotechnical Commission (IEC)'s international standard series on low-voltage electrical installations
IEC_60364
Installation for charging electric vehicles
National Electrical Code (NEC) Handbook. Under the 1999 NEC, Level 1 charging equipment (as defined in the NEC handbook but not in the code) was connected
Charging_station
Subfield of electrical engineering
subfield of electrical engineering that deals with the generation, transmission, distribution, and utilization of electric power, and the electrical apparatus
Power_engineering
North American standard for electrical-wire diameters
lists slightly lower resistances than this table. NFPA 70 National Electrical Code 2014 Edition Archived 2008-10-15 at the Wayback Machine. Table 310
American_wire_gauge
Electrical safety device
An earth-leakage circuit breaker (ELCB) is a safety device used in electrical installations to prevent shock. It consists of either a current sensing mechanism
Earth-leakage_circuit_breaker
Cable assembly containing one or more optical fibers that are used to carry light
cable, also known as an optical-fiber cable, is an assembly similar to an electrical cable but containing one or more optical fibers that are used to carry
Fiber-optic_cable
Practices to reduce the results of fire
objective of electrical codes to prevent overheating of wiring or equipment, and to protect from ignition by electrical faults. Fire codes regulate such
Fire_safety
consumer hazards and electrical safety technologies required by the National Fire Protection Association's National Electrical Code: Ground Fault Circuit
Electrical_Safety_Foundation
Type of electrical cable for building wiring
of Electrical Wiring in Homes". Completeelectrical.biz. 8 October 2013. Retrieved 3 March 2015. "Nonmetallic Cable Sheathing Color Codes". Electrical.about
Thermoplastic-sheathed_cable
Safety measure for flammable gases
design and/or selection of electrical equipment in hazardous areas, and flame arrestor devices. The National Electrical Code classifies Class I hazardous
Maximum_experimental_safe_gap
British standard for electrical installations
British Standards Electrical code Electrical wiring Electrical wiring (UK) IEC 60364 Earthing system "11". BS 7671 - Requirements For Electrical Installations
BS_7671
country codes are telephone number prefixes for reaching subscribers in foreign countries or areas by international direct dialing (IDD). Country codes are
List of telephone country codes
List_of_telephone_country_codes
Electrical wiring in the United Kingdom refers to the practices and standards utilised in constructing electrical installations within domestic, commercial
Electrical wiring in the United Kingdom
Electrical_wiring_in_the_United_Kingdom
Service drop entry point
are made through a pothead. Weatherheads are required by electrical codes or building codes. They are also used on utility poles where overhead power
Weatherhead
Automatic circuit protection device
A circuit breaker is an electrical safety device designed to protect an electrical circuit from damage caused by current in excess of that which the equipment
Circuit_breaker
In mains electricity, part of a circuit connected to ground or earth
In electrical engineering, ground (or earth) and neutral are circuit conductors used in alternating current (AC) electrical systems. The neutral conductor
Ground_and_neutral
Electrical potential that is large enough to cause damage or injury
National Electrical Code and in the Canadian Electrical Code. Intrinsic safety apparatus is now approved for use in North American applications. Electrical discharges
High_voltage
Electrical wiring technique
In electricity supply, a ring circuit is an electrical wiring topology in which power is distributed through a continuous cable ring. Each conductor of
Ring_circuit
Sinusoidal wave whose frequency is an integer multiple
Quality Issues & Opportunities Conference. For example, see the National Electrical Code: "A 3-phase, 4-wire, wye-connected power system used to supply power
Harmonics_(electrical_power)
Local government agency type
Codification Code of Federal Regulations Dress code National Electrical Code International Building Code Legal code Fire code Penal code Traffic code Nuisance
Code_enforcement
The slash rating, under the United States National Electrical Code, is given to circuit interrupt hardware and specifies a maximum line-to-ground voltage
Slash_rating
Form of alternating current
doi:10.1109/JPROC.2006.892488. C22.1-15 – Canadian Electrical Code, Part I: Safety Standard for Electrical Installations (23rd ed.). Canadian Standards Association
Three-phase_electric_power
Part of a building hosting air circulation for heating and air conditioning systems
Protection Association (2017). "Article 100 Definitions". NFPA 70 National Electrical Code. Quincy, Massachusetts: NFPA. Retrieved October 9, 2023. Plenum: a
Plenum_space
Set of standard enclosures for enclosing electrical service apparatus
National Fire Protection Association, and NEC is National Electrical Code (U.S.A.) Electrical equipment in hazardous areas NEMA connector – Another common
NEMA_enclosure_types
Soil resistance measuring instrument
determine the adequacy of the grounding of an electrical system. By a standard of the National Electrical Code the resistance of the soil should be less than
Grounding_resistance_tester
Electrical grounding method for concrete foundations
"NFPA's Dictionary of Electrical Terms" By H. Brooke Stauffer "Electrical Wiring Residential: Based on the 2005 National Electric Code" By Ray C. Mullin "Ufer
Ufer_ground
Cabinet for electrical or electronic equipment
IEC 60529 classifies the IP Codes (ingress protection rating) of enclosures. In the United States, the National Electrical Manufacturers Association (NEMA)
Electrical_enclosure
IEEE standard for National Electrical Safety Code
Institute (ANSI) standard for the National Electrical Safety Code (NESC), published by the Institute of Electrical and Electronics Engineers (IEEE). The NESC
IEEE_C2
temporary electrical wiring at events where the cable is standardised as Cenelec code H07RN-F (H07 for short) The American National Electrical Code, for theater
Tough_rubber-sheathed_cable
Sodium–potassium alloy AA-8000: used for electrical building wire in the U.S. per the National Electrical Code, replacing AA-1350. Al–Li (2.45% lithium):
List_of_named_alloys
Electrical wiring technique
and commonplace electrical wiring circuit arrangement in which a circuit from a distribution board simply serves a set of electrical loads, such as sockets
Radial_circuit
fault current. Rules for bonding jumper installation are given in electrical code regulations. Typically, these require a jumper at any place where the
Bonding_jumper
Post used by public utilities to support overhead wires and related equipment
National Electrical Safety Code, published by the Institute of Electrical and Electronics Engineers (IEEE) (not to be confused with the National Electrical Code
Utility_pole
Electrical cable that connects an appliance to the electricity supply via a wall socket
compatibility. In the United States, the National Electrical Code (NEC) provides guidelines for electrical installations, including the use of flexible cords
Power_cord
Assembly to control a series of electric motors from one location
Protection Association (2017). "Article 100 Definitions". NFPA 70 National Electrical Code. 1 Batterymarch Park, Quincy, Massachusetts 02169: NFPA. Retrieved
Motor_control_center
Device used to measure electricity use
An electricity meter, electric meter, electrical meter, energy meter, kilowatt-hour meter, or power meter is a device that measures the amount of electric
Electricity_meter
for Electrical Installation Contracting, or NICEIC, is one of several organisations which assesses the competence of businesses undertaking electrical work
National Inspection Council for Electrical Installation Contracting
National_Inspection_Council_for_Electrical_Installation_Contracting
Present-day standards for electrical panels
standard for electrical panels sold in the United States according to the National Electrical Code. This standard requires an electrical panel to provide
Circuit_total_limitation
Electromechanical switch
In electrical engineering, a disconnector, disconnect switch or isolator switch is a type of switching device with visible contacts, used to ensure that
Disconnector
Term used in electricity-related fields
different fields of study. In electrical engineering, electrical polarity defines the direction in which the electrical current would flow once a source
Electrical_polarity
NFPA 70 — National Electrical Code (NEC) NFPA 70E — Standard for Electrical Safety in the Workplace NFPA 70B: Standard for Electrical Equipment Maintenance
NFPA_70B
Equipment that distributes electric power
same section as other devices.[citation needed] The U.S. National Electrical Code (NEC) defines a switchboard as "a large single panel, frame, or assembly
Electric_switchboard
Type of fire-resistant electrical cable
Mineral-insulated copper-clad cable is a variety of electrical cable made from copper conductors inside a copper sheath, insulated by inorganic magnesium
Mineral-insulated copper-clad cable
Mineral-insulated_copper-clad_cable
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