electrical code wire sizes

8/10/2019 Electrical Code Wire Sizes

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Skilled Trades 1201

Provincial Electrical Code


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Electrical Code

Wire Size

The diameter of the wire determines the

amount of current that can safely flowthrough it.


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Electrical Code

Wire Size

The diameter of the wire determines the

amount of current that can safely flowthrough it.

Wires are sized according to a table known

as the American Wire Gauge (AWG).


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Electrical Code

Wire Size

Wire size varies from AWG 40 to 0000 with

40 being the smallest and 0000 the largest.


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Electrical Code

Wire Size

Wire size varies from AWG 40 to 0000 with

40 being the smallest and 0000 the largest.

The larger the number the smaller the wire

diameter.


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Electrical Code

Common Residential Wire Sizes


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Electrical Code


# 24 AWG Used for Computers


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Electrical Code



# 22 AWG Used for Telephone


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Electrical Code



# 22 AWG Used for Telephone# 18 AWG Used for Doorbell Circuit


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Electrical Code



# 22 AWG Used for Telephone# 18 AWG Used for Doorbell Circuit

# 14 AWG Used for Light, Switches,

Receptacles,


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Electrical Code



Receptacles, BaseboardHeaters, , Hot Water Heaters


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Electrical Code




# 10 AWG Used for Clothes Dryers


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Electrical Code





# 8 AWG Used for Electric Range


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Electrical Code





# 8 AWG Used for Electric Range# 2 AWG Used for Ground Wire


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Electrical Code


# 000 AWG Service Entrance Cable


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Electrical Code





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Electrical Code

Residential Wire Colour Code

Hot Wire Black or any other colour except

White, Green, bare copper.


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Electrical Code


Hot Wire- Black or any other colour except

White, Green, bare copper.Neutral WireWhite, Is grounded at the main

switch and runs to each 120V outlet

without interruption.


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Electrical Code


Hot Wire- Black or any other colour except

White, Green, Bare Copper.Neutral WireWhite, Is grounded at the main

switch and runs to each 120V outlet

without interruption.

Ground WireGreen or Bare Copper


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Electrical Code


2-Wire Circui t

Black and White Wires-Used for lights andreceptacles in 120 volts AC circuits.


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Electrical Code


2-Wire Circui t

Black and White Wires - Used for lights andreceptacles in 120 volts AC circuits.

Black and Red Wires Used for electric heaters

and hot water tanks in 220 volt circuits


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Electrical Code


2-Wire Circui t

Black and White Wires - Used for lights andreceptacles in 120 volts AC circuits.

Black and Red Wires Used for electric heaters

and hot water tanks in 220 volt circuits

Black and Red Wires Used between switch

and lighting outlets.


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Electrical Code


3-Wire Circui t

Black, Red, White or Green WiresUsed for electric Dryers and Ranges.


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Residential Electrical Regulations

Governing Bodies that control Residential

Wiring


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Governing Bodies that control Residential

Wiring

Regulations of building and electrical codes

is a provincial jurisdiction. Each province

regulates by passing laws which mandates a

standard set of codes and regulations


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The Standards Council of Canada is a

federal crown corporation, which has

advisors from all the provinces, that create a

set of standards and codes for many areas of

construction, including electrical.


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Regulations that govern the electrical trades

are:

Canadian Electrical Codes

Municipal Electrical Codes

CSA and UL

Insurance Regulations

electrical code wire sizes

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