What is the difference between: standby, backup and redundant equipment?

In reliability engineering one way to get high plant and equipment reliability is to provide an extra unit that is available to immediately replace the duty unit when it fails. The configuration of the second unit can be as a standby, or as a redundancy, or as a backup.

 


Hello Mike,

What the different between standby, backup and redundancy? Since before your online RCM training course, all for me were only standby items.

 


 

Dear Wael,

‘Standby’ means a separate unit, that is not operating, is provided beside the working unit and is ready to start when the duty unit stops.

‘Redundancy’ means a second unit is operating in parallel with the primary duty unit and both are sharing the demand. Should the primary unit fail, the second unit takes the full service.

‘Backup’ means another unit from somewhere else is brought into operation should the duty unit fail. For example, you hire a mobile air compressor (the back-up) when your plant air compressor fails (or you start an air compressor in another part of the operation and use it to supply the air when the duty unit stops).

 

My best regards to you,

Mike Sondalini
Managing Director
Lifetime Reliability Solutions HQ

 

P.S. If you require advice on industrial asset management, industrial equipment maintenance strategy, defect elimination and failure prevention or plant and equipment maintenance and reliability, please feel free to contact me by email at info@lifetime-reliability.com

The CEO, Executive, Manager, and Engineer Who Wants Their Enterprise Asset Management and Maintenance Systems to Get World Class Reliability and New Profits

Click to view

Free PDF Book on the Plant & Equipment Wellness Way to World Class Reliablility
Plant and Equipment Wellness Free PDF Book and learn about Plant Wellness Way EAM methodology

 

Click this link to download the free 299-page Plant and Equipment Wellness PDF book and templates on how to get world class reliable operating assets

Free Videos on the Plant & Equipment Wellness Way to World Class Reliability

Click this link to
get free access to 14 hours of Plant Wellness Way videos.

Now, Build an EAM System and Life-Cycle Processes that Get World Class Reliability and Profits

Quickly build an EAM system that ensures a lifetime of world class reliability and utmost operating profits from outstandingly reliable operating assets

Industrial and Manufacturing Wellness Book with the complete Plant Wellness Way EAM methodology

You can get Industrial and Manufacturing Wellness: Life Cycle Enterprise Asset Management for World Class Reliability at Industrial Press and Amazon Books.

5 Free Downloads for World Class Reliability the Plant Wellness Way

Click to View

Online Store Catalog of World Class EAM, Maintenance, and Reliability Strategy, Training and Solutions

Click to View

All Online Training Courses for World Class EAM, Maintenance, and Reliability Success

Click to View