How many transfer switches (minimum) are necessary for ASCs?
The answer is simple: It depends. If the load on the essential electrical system is less than 150kVA, NFPA 99 states that a facility can install just one transfer switch. However, all other requirements for essential electrical systems must be followed. It also needs to be noted that, with only one transfer switch for transferring power from the normal source to emergency power source, its failure essentially shuts down the delivery of power from the emergency power supply. Even if the essential electrical load is less than 150kVA, an ASC can install more than one transfer switch. If the essential electrical load is more than 150kVA, an ASC with critical patient care areas, or those using electrical life-support equipment, would have to follow the requirements for a Type 1 EES, as listed in NFPA 99, Chapter 4. This could become complicated for those ASCs located within a commercial building. Unlike a hospital (with no independent tenants), the wiring of the ASC portion would have to me
Related Questions
- Some four-year schools accept transfer students with 30 hours and others accept 54 hours. Should I obtain the minimum number of hours from ACC or complete the associate degree requirements?
- What is the minimum software that is necessary for QoS on Catalyst 4500/4000 switches that run CatOS?
- Is there a minimum grade point average to transfer?
