How are wire bundles used in aircraft installation?
Wire Groups and Bundles and Routing Wires are often installed in bundles to create a more organized installation. These wire bundles are often called wire harnesses. Wire harnesses are often made in the factory or electrical shop on a jig board so that the wire bundles could be preformed to fit into the aircraft.
What are some common problems with wire connections?
Another common wire connection problem is when you find two or more wires held under a single screw terminal on a switch or outlet. This is a clear sign of amateur work and a distinct fire hazard.
What kind of wire should I use for a screw terminal?
With screw terminal connections, there should be enough bare copper wire stripped to wrap entirely around the screw terminal but not so much that excess bare copper wire extends out from the screw. The excess exposed wire can short out if it touches a metal box or other wires.
What should the deflection of a wire bundle be?
Normally, wire groups or bundles should not exceed 1⁄2 inch deflection between support points. [Figure 2] This measurement may be exceeded if there is no possibility of the wire group or bundle touching a surface that may cause abrasion.
What do you need to fix a cut wire?
If you have a wire, cord or cable that has been cut, frayed or otherwise made difficult, it’s fairly easy to fix. You’ll just need some scissors or a blade and some electrical tape. Best of luck and feel free to ask any questions you might have.
With screw terminal connections, there should be enough bare copper wire stripped to wrap entirely around the screw terminal but not so much that excess bare copper wire extends out from the screw. The excess exposed wire can short out if it touches a metal box or other wires.
Another common wire connection problem is when you find two or more wires held under a single screw terminal on a switch or outlet. This is a clear sign of amateur work and a distinct fire hazard.
What’s the proper amount of exposed wire for a wire connection?
Make sure there is the proper amount of exposed wire showing (for most connectors, this means about 3/4 inch), then join the wires together with a wire nut or other approved connector (there are now push-in connectors that some pros like to use).