Pollution Problems & Practical Solutions

Lift System

Noise & Vibration Pollution

Common Causes Relevant Environmental Control
Too close to the nearby sensitive receivers Under the Noise Control Ordinance, Cap. 400, noise caused by any lift system should not cause the noise level at Noise Sensitive Receivers to exceed the limit stipulated under the relevant Technical Memorandum.
Inadequate noise pollution control measures

Practical Solutions

  • Preference should be given to place the lift plant in a plant room with thick walls, sound adsorption materials, sound proof door and silencers for air inlets/outlets
  • Locate the lift plant in isolation from residential premises, for example, placing the lift room at rooftop
  • Select quiet machine
  • Conduct regular maintenance, such as lubricating moving parts, tightening loosen parts, replacing worn-out components and inspecting equipment alignment
  • Use anti-vibration pad or vibration isolator between the vibrating machines and the fixed building structure to avoid structural vibration transmission
Use anti-vibration pad between the vibrating part of the machine and the fixed structure to avoid structural vibration transmission.
Use anti-vibration pad between the vibrating part of the machine and the fixed structure to avoid structural vibration transmission.
  • Adopt proper noise control measures for exhaust fans:
    • Choose silent type exhaust fan
    • Install silencer at the exhaust outlet
    • Provide an inertia block with vibration isolators to support the fan
    • Provide flexible connectors between the fan and associated ducts
  • Seek professional advice from acoustic consultant/contractor

 

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