Warrawee Substation - Review of Environmental Factors

Warrawee Substation Page 12Operational Noise & Construction Noise & Vibration AssessmentReport No. 11332 Version BTable 5-1 provides a summary of the attended measurements of the rectifier within thesubstation building and the transformer in the bunded yard outside the substation building.Table 5-1Summary of Noise Measurements at West Ryde SubstationMeasurementScenarioReference- Inside building, 3mSetback fromRectifierM12m fromTransformer ( Idle )with connectingdoor to SubstationBuilding OpenM1 2m setback from IdleTransformerM12m setback fromTransformer(Loaded) due to trainleaving DenistoneStationM23m setback fromTransformer(Loaded) due to trainleaving DenistoneStationM38m from transformerand 5m setback frombrick wall barrierM49m setback fromTransformer(Loaded)M5 Measurement at thefront of 72 WestParade, 32m setbackfrom brick wallbarrierMeasured EstimatedL Aeq L Aeq54 54CommentsEvident humming from rectifier.Rectifier dominates the noisewithin the substation.58 58 Transformer and rectifier audible.53 53 Transformer clearly audible.Noise from transformer increased56 55by 3dB as train departedDenistone Station.Noise from transformer increased54 54by 3dB as train departedDenistone Station.Measurement done just after trainpass where noise fromtransformer was at increased49