Construction Concerns: Electrical Color Codes

09/10/2007
Article and photos by Gregory HavelDownload this article as a pdf!Electricians use different colors of insulation on wire to show its function and sometimes its voltage. In larger wire sizes, especially in older installations, these wires could all have black insulation, and each wire could have a band of colored tape or paint near each end. These color codes were adopted by electricians as a safe work practice, and have become part of the building and electrical codes.We are all familiar with the cables that were used to wire our houses in the common 120-240-volt single-phase electrical system. For ordinary 120-volt circuits, each cable will have a white "neutral" wire, grounded at the s...

To access this articles and others like, join the Fire Engineering Training Network today.

LOGIN TODAY

FE Logo

Log into Fire Engineering and you'll have total access to the industry's leading online resource for finest training simulations, articles, instructional videos and much more.

Why Join the Fire Engineering Training Network?

Only Fire Engineering Training Network members have full access to the most comprehensive database of fire firefighter training information in the worlld.  Fire Engineernig has been around since 1877, offering peer-reviewed training techinigues and techonologies for firefighters.

Gain unlimited access to the most comprehensive database of firefighter training info in the world.

Membership in the Fire Engineering Training Network includes:

  • Exclusive Online Access to FireEngineering.com News & Articles
  • Fire Engineering Magazine Historical Archives (Online-Only)
  • Annual Print Subscription to Fire Engineering Magazine
  • Annual Digital Subscription to Fire Engineering Magazine

Join Now

Additionally, if you attend FDIC International in the spring, membership to the Fire Engineering Training Network is included in your registration fee.

Click here to SUBSCRIBE or LEARN MORE ABOUT THE FIRE ENGINEERING TRAINING NETWORK