When selecting power cables for your residence, things to look at include the type of cable, its gauge, insulation material, and application. Different cables are environmentally sensitive to the ranges of devices they are to operate, be it safely and efficiently or otherwise. For example, insulation and flexibility requirements above the cables extending indoors are different than those used outdoors. Knowing the varies will facilitate the functioning of the electrical systems correctly and smoothly while minimizing faults and improving performance.