380kV SPECIAL TOWER WEIGHT & DESIGN PARAMETER SUMMARY AS OF MAY 31 2011

TOWER UNIT WEIGHT TOWER DATA TOWER PART WEIGHT WEIGHT PART ONE TOWER DESIGN WIND TYPE ANGLES PLATES BOLTS HEIGHT SPAN SPAN TOTAL (Without Stub) ANGLE SPAN (Max) (Min) S1N-5P Basic Body 20,628.84 2,662.20 1,098.37 24,389.41 oo 560 1350 160

+3.0m Leg 1,430.72 133.52 58.16 1,622.40 26,011.81 53.25 +4.0m Lea 1,551.08 136.32 69.80 1,757.20 26,146.61 54.25 +5.0m Lea 1 871.52 134.44 76.20 2082.16 26 471.57 55.25

(DWGRef: +6.0m Lea 2283.84 136.00 87.10 2506.94 26896.35 56.25 WA-{)99080) +7.om Lea 2,899.32 151.60 107.16 3,158.08 27,547.49 57.25

Total Sheet 41 +8.0m LEl!l 3,145.12 140.76 106.68 3,392.56 27,781.97 58.25 +9.0m Lea 3,448.92 150.04 125.76 3,724.72 28,114.13 59.25 +10.0m Lea 3,862.00 176.96 142.76 4,181.72 28,571.13 60.25 +11.0m Lea 4,210.60 176.48 154.12 4,541.20 26,930.61 61.25 +12.0m Lea 4885.64 260.00 190.20 5335.84 29725.25 62.25 +13.0m Lea 5,192.80 269.72 202.72 5,665.24 30,054.65 63.25 +14.0m Leg 5,534.12 267.84 216.40 6,018.36 30,407.77 64.25 +15.0m Leg 5,812.16 268.84 222.64 6,303.64 30,693.0li 65.25 +16.0m LEl!l 6,154.96 270.36 233.48 6,658.80 31,048.21 66.25 +17.0m LEl!l 7,169.12 348.92 324.68 7,842.72 32,232.13 67.25

+18.0m Body Ext 9 415.64 257.18 220.82 9893.64 +3.0m Leg 2,386.48 168.40 66.08 2,620.96 36,904.01 71.25 +4.0m LEl!l 2,645.84 152.92 73.84 2,872.60 37, 155.6~ 72.25 +5.0m Leg 3,270.08 145.68 81.76 3,497.52 37,780.57 73.25 +6.0m Lea 3,727.04 152.84 95.92 3,975.80 38,258.85 74.25 +7.om Lea 4,089.44 158.72 103.64 4,351.80 38634.85 75.25

+11.0m Lea 6 106.52 190.92 169.36 6466.80 40749.85 79.25 +12.0m Leg 6,713.96 323.92 308.92 7,346.80 41,629.85 80.25

Stub & Cleats 761.08 0.00 31.24 792.32 Sub-Total

TA1N-SP Basic Body 29 956.41 6233.39 1 528.40 37 718.20 o -10 680 1550 -600 +3.0m Leg 3,461.72 861.68 159.28 4,482.68 42,200.88 49.65 +4.0m Leg 3,847.56 844.44 170.72 4,862.72 42,580.92 50.65 +5.0m Leg 4,518.04 858.60 177.96 5,554.60 43,272.80 51.65

(DWGRef: +6.0m Leg 5,268.24 810.00 193.28 6,271.52 43,989.72 52.65 WA-{)94083) +7.om Leg 6,212.80 856.16 201.68 7,270.64 44,988.84 53.65

Total Sheet 25 +8.0m Lea 6 773.12 846.24 218.36 7 837.72 45555.92 54.65 +11.0m Leg 9,492.12 1,087.88 291.04 10,871.04 48,589.2-4 59.65

+20.0m Elody Ext. 16,983.84 1,356.00 416.53 18,756.37 +3.0m Leg 5,149.64 699.44 142.48 5,991.56 62,466.13 71.65 +11.0m Leg 10,710.36 811.36 248.84 11,770.56 68,245.13 79.65

Stub & Cleats 2,109.68 0.00 70.28 2,179.96 Sub-Total

TA2N-SP Basic Bodv 28,768.42 4,936.53 1,231.78 34,936.73 10"- 35 560 800 0 +3.0m Lea 3,079.20 580.88 134.96 3,795.04 38,731.77 53.65 +4.0m Lea 3903.32 570.60 136.36 4610.28 39 547.01 54.65

(DWGRef: +5.0m Leg 4428.96 586.88 155.00 5170.84 40107.57 55.65 WA-{)93780) +11.0m Lea 8,992.32 1,074.04 309.48 10,375.84 45,312.57 61.65

Total Sheet 21 Stub & Cleats 2,042.96 0.00 79.04 2,122.00 Sub-Total

TA3N-SP Basic Body 36,270.29 6,109.49 1,547.44 43,927.22 35"- goo 470 800 0 +3.0m Leg 3,762.48 683.20 139.60 4,585.28 48,512.50 54.05 +10.0m Lea 8,345.40 764.60 238.80 9,348.80 53,276.02 61.05

(DWG Ref: +11.0m Lea 9,845.64 822.32 249.20 10,917.16 54,844.3ll 62.05 WA-{)93789) +20.0m Body Ext. 11,714.56 797.24 238.59 12,750.39

Total Sheet 27 +11.0m Lea 19 049.96 1 313.08 492.68 20855.72 77 533.33 82.05 Stub & Cleats 2004.24 0.00 110.80 2115.04 Sub-Total