There are a lot of standby generators that are in-use in both Level 1 and Level 2 emergency power supply, as defined by NFPA 110: Standard for Emergency and Standby Power Systems, systems that most professionals would classify as "beyond useful life" due to age or number of hours ran. At the time of publication, lead times for generator sets are beyond 70 weeks due to myriad shortages. Many facilities are looking to extend the life of the equipment they have or find new uses for used equipment. Existing equipment locations can be improved upon, which can extend useful life and improve system reliability. The locations of EPS and emergency power supply system equipment as defined in NFPA 110 are typically located in unconditioned spaces, which reduces longevity. If the EPSS equipment room lacks adequate heating or cooling, fan coil or blower coil systems, or mini-split heat-ing, ventilation and air conditioning systems can be added to extend useful life and comply with NFPA 110-2019 Section 7.7. Environmental factors of concern include the temperature and humidity ranges and dirt and dust accumulation within the room(s). EPSS rooms that lack sufficient HVAC shorten useful life of the equipment. Because EPS rooms typically have direct venting to the outdoors, they have the largest fluctuations in temperature and humidity while also having high dirt accumulation.
展开▼
