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Design Philosophy:
Noise
Objective
The objective is to minimise risks related to noise generated by the equipment to ALARP, including consideration in design for foreseeable human error.
Outcome
The intended design outcome should include the following:
Engineered controls which, during normal operation of the plant and with the air conditioner / heater on the 'high' setting, will maintain noise levels within the operator environment below Occupational Exposure Limits (OELs) as defined in AS 1269 and ISO 6395.
- 80dbA tested by AS 1269, with a preference for machines that do not exceed 75dB(A) LAeq, taking into consideration normal operating conditions such as under full power and audible radio
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Risks to be Mitigated
Risk of excessive noise impacting the ability of the operator or bystander to hear warnings or alarms
(11 resources)
Examples of Industry Attempts to Mitigate Risks
One piece dual pane glass (e.g. toughened, laminated, shatterproof) on all sides that significantly reduces the operator's sound exposure
(3 resources)
Door seals that are positioned so that they are not prone to physical damage in normal operation
Selection and relocation of air-conditioning systems to reduce noise
Sound suppression/absorption materials around outside components (exhaust system, engine compartments, cooling fans)
(3 resources)
Active noise cancelling devices designed to lower noise caused by low frequency sound waves
(1 resources)
In cab communication headsets with active listening technology designed to integrate all radio communication (company and AM/FM) directly into the headset and limit noise output
(1 resources)
EMESRT Information