Selective coordination in elevators
Selective coordination in elevators is required when more than one elevator is supplied by a common feeder.
Selective coordination is required when more than one elevator is supplied by a common feeder, per NEC Article 620-62. Figure 2 shows an example of a coordination study illustrating the feeder breaker overcurrent protection, the elevator fuse overcurrent protection, and the elevator motor start-up curves.
Keith Lane is president and CEO of Lane Coburn & Assocs. He is a member of the Consulting-Specifying Engineer editorial advisory board, and was a 2008 40 Under 40 award winner. Lane has more than 20 years of experience designing, commissioning, and optimizing mission critical facilities.
- See how selective coordination studies are used in mission critical environments below.
|Search the online Automation Integrator Guide|
Case Study Database
Get more exposure for your case study by uploading it to the Control Engineering case study database, where end-users can identify relevant solutions and explore what the experts are doing to effectively implement a variety of technology and productivity related projects.
These case studies provide examples of how knowledgeable solution providers have used technology, processes and people to create effective and successful implementations in real-world situations. Case studies can be completed by filling out a simple online form where you can outline the project title, abstract, and full story in 1500 words or less; upload photos, videos and a logo.
Click here to visit the Case Study Database and upload your case study.