Site: Lamma Power Station Extension – Transmission System
Measurement
Parameter: 30-min Leq (07:00-19:00
hrs on normal weekdays)
Noise
Equipment Used: Rion NL-31 sound
level meter and Rion NC-74 sound
level calibrator
Wind Speed
Equipment: Extech Instruments 45118
Last
Calibration Date: Rion NL-31 sound level meter – 11/10/2006
Rion
NC-74 sound level calibrator – 31/10/2006
Measurement
Location: N4 – Pak Kok Tsui No.2
|
Date |
Time |
Measured Noise Level
(dB(A)) |
Notional Background
Noise Level (dB(A)) |
Corrected Noise Level
(dB(A)) |
Limit Noise Level
(dB(A)) |
Wind Speed (m/s) |
|
03/11/2006 |
14:00-14:30 |
48.4 |
54.9 |
-- |
75 |
<5 |
|
07/11/2006 |
10:00-10:30 |
48.4 |
54.9 |
-- |
75 |
<5 |
|
10/11/2006 |
14:00-14:30 |
48.3 |
54.9 |
-- |
75 |
<5 |
|
14/11/2006 |
10:00-10:30 |
48.6 |
54.9 |
-- |
75 |
<5 |
|
17/11/2006 |
14:00-14:30 |
48.3 |
54.9 |
-- |
75 |
<5 |
|
21/11/2006 |
10:00-10:30 |
48.9 |
54.9 |
-- |
75 |
<5 |
|
24/11/2006 |
14:00-14:30 |
48.6 |
54.9 |
-- |
75 |
<5 |
|
28/11/2006 |
10:00-10:30 |
49.7 |
54.9 |
-- |
75 |
<5 |
Measurement
Location: N5 – Pak Kok Tsui No.8
|
Date |
Time |
Measured Noise Level (dB(A)) |
Notional Background
Noise Level (dB(A)) |
Corrected Noise Level
(dB(A)) |
Limit Noise Level
(dB(A)) |
Wind Speed (m/s) |
|
03/11/2006 |
14:40-15:10 |
49.0 |
54.9 |
-- |
75 |
<5 |
|
07/11/2006 |
10:40-11:10 |
49.2 |
54.9 |
-- |
75 |
<5 |
|
10/11/2006 |
14:40-15:10 |
49.2 |
54.9 |
-- |
75 |
<5 |
|
14/11/2006 |
10:40-11:10 |
49.5 |
54.9 |
-- |
75 |
<5 |
|
17/11/2006 |
14:40-15:10 |
49.3 |
54.9 |
-- |
75 |
<5 |
|
21/11/2006 |
10:40-11:10 |
49.4 |
54.9 |
-- |
75 |
<5 |
|
24/11/2006 |
14:40-15:10 |
49.6 |
54.9 |
-- |
75 |
<5 |
|
28/11/2006 |
10:40-11:10 |
50.3 |
54.9 |
-- |
75 |
<5 |
Note:
1.
The noise generated from local noisy events (e.g. dog barking,
passing-by pedestrians, motor vehicle, aeroplane, helicopter, etc.) was manually removed during measurement as far
as practicable.
2.
“--“ represents the measured noise monitoring data lower than
the established notional background level.