Which factor should be considered when selecting electrical cables?

When selecting electrical cables, the voltage rating and environment are crucial factors to consider. The voltage rating ensures that the cable can handle the electrical load without risk of breakdown or failure. Different types of cables are designed to operate at specific voltage levels, and using a cable with an inadequate rating can lead to overheating, potentially causing insulation failure or even fire hazards.

Additionally, the environment where the cables will be installed significantly impacts the choice of cable materials and insulation types. For example, cables used in outdoor settings may need to be resistant to moisture, UV exposure, or temperature fluctuations, while those in industrial environments might require features that protect against chemicals or mechanical stresses. Selecting cables that meet both the voltage requirements and environmental conditions ensures safety, reliability, and longevity of the electrical installation.