| Table C-1 Sound Power Level (SWL) Evaluation -
Unmitigated |
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Activities |
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PME |
TM ident. Code |
Unit |
SWL/Unit dB(A) |
Sub-SWL |
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| Powered
Mechanical Equipment Used (Installation of Underground Cable) |
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| A |
Road Breaking |
A1 |
Air Compressor |
CNP 001 |
1 |
100 |
100 |
10000000000 |
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Hand-held Breaker |
CNP 023 |
1 |
108 |
109 |
63095734448 |
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Total SWL |
109 |
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73095734448 |
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A2 |
Dump Truck |
CNP 067 |
1 |
117 |
118 |
5.01187E+11 |
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Total SWL |
117 |
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5.01187E+11 |
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A3 |
Backhoe |
CNP 081 |
1 |
112 |
118.5 |
1.58489E+11 |
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Total SWL |
112 |
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1.58489E+11 |
| B |
Trench Excavation |
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Backhoe |
CNP 081 |
1 |
112 |
112 |
1.58489E+11 |
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Total SWL |
112 |
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1.58489E+11 |
| C |
Road Reinstatement |
C1 |
Compactor |
CNP 050 |
1 |
105 |
105 |
31622776602 |
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Total SWL |
105 |
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31622776602 |
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C2 |
Concrete Lorry Mixer |
CNP 044 |
1 |
109 |
111 |
79432823472 |
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Total SWL |
109 |
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79432823472 |
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C3 |
Vibratory Poker |
CNP 170 |
1 |
113 |
115 |
1.99526E+11 |
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Total SWL |
113 |
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1.99526E+11 |
| Powered
Mechanical Equipment Used (Construction of Cable Tunnel) |
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1 |
| A |
General |
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Loader |
CNP 081 |
1 |
112 |
112 |
1.58489E+11 |
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Backhoe / Muck Car |
CNP 081 |
1 |
112 |
115 |
1.58489E+11 |
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Concrete Lorry Mixer |
CNP 044 |
1 |
109 |
116 |
79432823472 |
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Mobile Crane |
CNP 048 |
1 |
112 |
101 |
1.58489E+11 |
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Total SWL |
117 |
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5.54901E+11 |
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Execavation |
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Loader |
CNP 081 |
1 |
112 |
112 |
1.58489E+11 |
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Backhoe / Muck Car |
CNP 081 |
1 |
112 |
115 |
1.58489E+11 |
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Dump Trucks |
CNP 067 |
1 |
117 |
119 |
5.01187E+11 |
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Total SWL |
121 |
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1.37307E+12 |
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Concreting |
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Concrete Lorry Mixer |
CNP 044 |
1 |
109 |
109 |
79432823472 |
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Concrete Pump |
CNP 047 |
1 |
109 |
112 |
79432823472 |
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Total SWL |
112 |
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1.58866E+11 |
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General |
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Mobile Crane |
CNP 048 |
1 |
112 |
112 |
1.58489E+11 |
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Mobile generator |
CNP 101 |
1 |
108 |
113.5 |
63095734448 |
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Compressor |
CNP 002 |
1 |
102 |
114 |
15848931925 |
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Water Pump |
CNP 281 |
1 |
88 |
113.5 |
630957344.5 |
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Ventilatin Fan |
CNP 241 |
1 |
108 |
115 |
63095734448 |
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Total SWL |
115 |
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3.01161E+11 |
| B |
Site Formation |
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Rock Drill
(Hydraulic) |
CNP 182 |
1 |
123 |
123 |
1.99526E+12 |
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Shotcrete Vehicle |
CNP 047 |
1 |
109 |
123 |
79432823472 |
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Concrete Lorry Mixer |
CNP 044 |
1 |
109 |
123 |
79432823472 |
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Total SWL |
123 |
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2.15413E+12 |
| C |
TBM Tunnel Construction |
Tunnel Boring Machine |
- |
1 |
80 |
80 |
100000000 |
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(Envisaged Design) |
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Conveyor Belt System |
CNP 041 |
1 |
90 |
91 |
1000000000 |
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Total SWL |
90 |
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1100000000 |
| D |
Drill
& Blast Tunnel Construction |
Rock Drill
(Hydraulic) |
CNP 182 |
1 |
123 |
123 |
1.99526E+12 |
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(Alternative Design) |
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Conveyor Belt System |
CNP 041 |
1 |
90 |
123 |
1000000000 |
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Shotcrete Vehicle |
CNP 047 |
1 |
109 |
123 |
79432823472 |
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Explosive Delivery
Vehicle |
CNP 141 |
1 |
112 |
123.5 |
1.58489E+11 |
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Total SWL |
123 |
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2.23418E+12 |
| E |
Lining construction |
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Concrete Delivery
Truck |
CNP 141 |
1 |
112 |
123 |
1.58489E+11 |
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Pumping Plant |
CNP
047 |
1 |
109 |
114 |
79432823472 |
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Total SWL |
114 |
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2.37922E+11 |
| Powered
Mechanical Equipment Used (Laying of Submarine Cable) |
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1 |
| A |
Laying Submarine Cable |
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Lay Barge |
CNP
061 |
1 |
104 |
104 |
25118864315 |
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Tug Boat |
CNP
221 |
1 |
110 |
111 |
1E+11 |
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Warning Boat |
CNP
061 |
1 |
104 |
112 |
25118864315 |
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Pontoon Barge |
CNP
061 |
1 |
104 |
113 |
25118864315 |
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Floating Crane |
CNP
048 |
1 |
112 |
116 |
1.58489E+11 |
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Total SWL |
115 |
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3.33846E+11 |
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