The answer to 'lifespan of outlet installation' is that with proper installation and maintenance, electrical outlets can last for decades in a typical home. Most outlets are designed to function reliably for 20-30 years or more, provided they are not overloaded or subjected to physical damage.
Factors that can impact the lifespan of electrical outlets include the quality of the installation, the type of outlet (standard vs. GFCI), the frequency of use, and environmental conditions like moisture or temperature extremes. Proper grounding and the use of tamper-resistant outlets can also help extend the useful life of electrical receptacles.