Good Practices on the Control of Noise from Electrical & Mechanical Systems
 

Quick Reference Guide

The following quick reference guide allows the reader to go directly to the relevant section or appendix concerning a particular problem.

For Ventilation Systems

Source of Noise Problem Remedies Relevant Section Relevant Appendix
Chillers - Barrier
- Partial enclosure
- Complete enclosure
- Silencer
- Floating floor
- Vibration isolator
5.1.1
5.1.1
5.1.1
5.1.1
5.1.1
5.1.1
Appendix VI
Appendix V
Appendix IV
Appendix IX
Appendix X
Appendix VIII
Water Cooling Towers - Barrier
- Partial enclosure
- Complete enclosure
- Silencer
- Acoustic mat
- Lined vent cowl
- Vibration isolator
5.1.2
5.1.2
5.1.2
5.1.2
5.1.2
5.1.2
5.1.2
Appendix VI
Appendix V
Appendix IV
Appendix IX
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Appendix VIII
Fans - Silencer
- Complete enclosure
- Fan speed reduction
- Diverting
- Inertia block
- Vibration isolator
- Flexible connector
5.1.3
5.1.3
5.1.3
5.1.3
5.1.3
5.1.3
5.1.3
Appendix IX
Appendix IV
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Appendix VII
Appendix VIII
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Ducts - Stiffening
- Damping material
- Composite lagging
5.1.4
5.1.4
5.1.4
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For Pumping Systems

Source of Noise Problem Remedies Relevant Section Relevant Appendix
Pipes - Large radius bend pipe
- Composite lagging
- Low water flow velocities
- Rigid mountings around the bend
- Vibration isolator
- Compressible material
- Pressure reducing valve
5.2.1
5.2.1
5.2.1
5.2.1
5.2.1
5.2.1
5.2.1
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Appendix VIII
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Pumpsets - Barrier
- Partial enclosure
- Complete enclosure
- Replacement of bearing
- Inertia block
- Vibration isolator
- Flexible connector
5.2.2
5.2.2
5.2.2
5.2.2
5.2.2
5.2.2
5.2.2
Appendix VI
Appendix V
Appendix IV
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Appendix VII
Appendix VIII
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For Lift Systems

Source of Noise Problem Remedies Relevant Section Relevant Appendix
Traction Machines - Plantroom
- Inertia block
- Vibration isolator
5.3.1
5.3.1
5.3.1
Appendix IV
Appendix VII
Appendix VIII
Guide Rails - Vibration pads 5.3.2 Appendix VIII
Hydraulic Lifts - Complete enclosure
- Vibration isolator
5.3.3
5.3.3
Appendix IV
Appendix VIII

 

For Emergency Generator Sets

Source of Noise Problem Remedies Relevant Section Relevant Appendix
Emergency Generator Sets - Plantroom
- Vibration isolator
- Flexible connector
5.4.1
5.4.1
5.4.1
Appendix IV
Appendix VIII
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Recommended Practical Remedies for Different Exceedance Levels (click here)


Glossary of Acoustic Terminology (click here)