The lifespan of electric cables depends heavily on factors such as the usage of the cable, the environmental conditions, and how well the cable was installed. Generally, quality cables have a life expectancy of 20 to 50 years. Moisture, extreme temperatures, and tension often leads to a loss of expectancy. Years of regular servicing of the system condenses time to identify concerns, so the electrical system is safe and as functional as possible. Expenditure on cables of higher quality is justified in the longer run as it replaces over time and assures enhanced safety in the system.