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Electrical Wiring Supplies Spokane WA

Local resource for Electrical Wiring Supplies in Spokane. Includes detailed information on local businesses that provide access to electrical wiring supplies, as well as advice and content on supplies and retailers of electrical wiring and accessories.

Under The Sun Electrical Services
(509) 343-8357
Servicing Your Area
Spokane , WA
10% off for repeat customers!
Monday 8:00 AM - 5:00 PM
Tuesday 8:00 AM - 5:00 PM
Wednesday 8:00 AM - 5:00 PM
Thursday 8:00 AM - 5:00 PM
Friday 8:00 AM - 5:00 PM
Saturday 8:00 AM - 5:00 PM
Sunday Closed
Circuits & Wiring, Commercial Electrical Services, Electric Safety & Protection, Electrical Inspections, Electricians, Home Energy Efficiency, Lighting Design & Installation, Residential Electrical Services, Voltage Conversion

Mainstream Electric
(509) 892-9277
Spokane, WA
Electric Contractors, Generators Commercial & Industrial
24 Hours 7 Days

Power City Electric Inc
(509) 535-8500
Spokane, WA
Commercial/Institutional, Industrial, Lighting Maintenance/Retrofit, Residential, Service - Residential, Service-Commercial/Industrial

Mountain States Elec Contractors Inc
(509) 532-0110
Spokane, WA
Commercial/Institutional, Energy Mgmt/Power Quality, Industrial, Instrumentation/Testing, Lighting Maintenance/Retrofit, Residential, Service - Residential, Service-Commercial/Industrial

Peterson Electric Inc
(509) 489-1950
Spokane, WA
Commercial/Institutional, Industrial, Residential

Extreme Heating Air & Electric
(509) 456-4668
6508 N Market Street
Spokane, WA
Air Conditioning Contractors, Electric Contractors Residential, Furnaces & Heating Equipment Wholesale & Manufacturers, Heat Pump Dealers
High Efficiency Furnaces, Air Conditioners & Heat Pumps

Miller William M
(509) 235-4682
Cheney, WA
Electronic Equipment & Supplies Service & Repair, Electric Contractors
Remodeling, Farm

Pick Electric Inc
(509) 532-1975
Spokane, WA
Commercial/Institutional, Energy Mgmt/Power Quality, Industrial, Lighting Maintenance/Retrofit, Residential, Service - Residential, Service-Commercial/Industrial

Electric City Inc
(301) 657-3110
Spokane, WA
Motor Repair

Mountain States Electrical Contractors Inc
(509) 532-0110
1220 East 1st Avenue
Spokane, WA

Common Cable and Wire

Summary: This article discusses the types and uses of common wire and cable used in most homes.

Common Types of Cable

The most common type of cable used in houses is technically known as NMD 90 (Non-Metallic Dry service cable rated at maximum of 90 degrees Celsius).

It is usually a plastic white covered cable.

This cable comes with two or more conductors and includes a ground wire (bare wire). It is commonly known as “Lumex” (or Romex for our American friends). T cable is the most commonly used. When I refer to two (2) conductor Lumex, I really mean one black wire, one white wire and one ground wire. The ground wire is never included in the cable count.

In a three conductor Lumex cable you would find one black, one red, one white and a ground wire.

How is Wire Sized?

In Canada and the United States there is a standard by which we measure wire. This standard is the A.W.G. (American Wire Gauge).

The most common size of wire that you will be dealing with is a #14.

Wire sizes start at higher numbers such as #24 (small wire) and as the number decreases in value the wire increases in size. The largest wire you will likely need is a #3 gauge. This would be for your incoming service.

The following chart identifies wire/amperage/breaker sizes:

Wire Size Rating (Amperage) Breaker Size (Amps)
#14 15 A. 15 A.
#12 20 A. 20 A.
#10 30 A. 30 A.
#8 45 A. 40 A.
#6 65 A. 60 A.
#3 105 A. 100 A.

∗All sizes are a maximum value and in accordance with the Canadian Electrical Code.

Types of Wire

Wire can be either solid of stranded. Most wiring you do in your home will be with solid wire.

Solid wire is easier to work with and takes less time to install. You will find stranded wire in extension cords and any wire gauge over a #10.

Most Commonly Used Cables and Their Uses

2-conductor #14


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