Electrical power requirements when designing for high rises
In a new elevator design blog series, RTM Engineering Consultants delves into mechanical, electrical, and plumbing (MEP) considerations as well as fire protection factors related to designing safe and efficient elevator systems.
The trend to build upward continues due to land restraints in urban areas. Because of this, designing multi-story buildings now requires architectural and engineering teams to carefully plan elevator systems that meet current safety standards, as well as address the unique needs of the space.
The third and final blog in the series focuses on electrical power requirements when designing for high-rise buildings.
Emergency power is a primary concern in new building design, especially since high-rise buildings are growing in popularity, and they simply are not accessible without elevators.
A high-rise is defined as a building with an occupied floor set more than 75 feet above the lowest level of access from a fire department vehicle. Backup power systems, usually powered by generators, are required for high-rise buildings. Emergency lighting, including elevator cab lighting, is considered an emergency load, while elevator motors are backed up by generators as standby loads.
All high-rise buildings must have standby power for elevators, although not all elevators are required to run at once during an outage. Generators should therefore be large enough to operate only one elevator in a group. Elevator controllers should also be programmed to operate just one elevator at a time while on backup power.
To learn more about designing a safe and efficient elevator system, click here to download our latest whitepaper “Top MEP Considerations When Designing for Elevator Systems.”