Comparison of Economy of COD-5B vs PVC for
500 meters of COD 110mm(O.D.) with 90mm(I.D.) : 5 subducts of 28/33mm
500 meters of PVD 100mm(O.D.) with 90mm(I.D.) : 3 subducts of 28/33mm

US$1=\1,140

Unit : US$

Work Description	Calculation/ Job description	Unit	Qty man/day	Unit Cost	Amount	Remarks
1.Matrial: A. PVC Ducting       System    1)Outer Duct    2)Inner Duct    3)Coupler	PVC(100/90mm) HDPE tube(28/33) Or coupling material	6m m Piece	84 1,500 84	18.018 0.67 .	1513.474 998.6842 0	.
	Total				2512.158
B. COD-5B .	Outer Duct:90/110mm Inner Duct:28/33mm	m .	500 .	6.14 .	3070.175 .	Readily built-in
2. Installation A. PVC 1)PVC Laying 2)Connection of Outer     Duct 3 Insertion of 5 Inner     Ducts 4)Cleaning of Outer     Duct	For 500m of PVC 145mm Duct & 5*42.4mm Inner Ducts.					0.10M/D Per 6m 0.26M/D Per 6m 0.083M/D Per 6m 0.04M/D Per 6m 0.48M/D Per 100m 0.53M/D Per 100m 0.44M/D Per 100m (0.6+0.34) Per 100m
	Pipe Layer General Labor Pipe Layer General Labor Pipe Layer General Labor Pipe Layer General Labor	(500m) (500m) (500m) (500m) (2,500m) (2,500m) (2,500m) (2,500m)	8.40 21.84 0 0 0.02 0.02 0.00 0.00
Total	Pipe Layer General Labor Sub-total		8.42 21.86 30.28	64.48 45.94	542.9997 1004.45 1547.447	Inner Duct(3+2):440%
Total Conventional System					4059.605
Unit Cost of per linear meter of Inner Duct					2.706	US$/meter
B. COD (for 5 Inner ducts: 2,500n)	Pipe Layer General Labor	(500m) (500m)	28.50 9.00	64.48 45.94	1837.70 413.48	0.018M/D Per 100m 0.057M/D Per 100m
	Sub-total		37.50		2251.18	Practically:50% applicable
	Total COD				5321.35
Unit Cost of per linear meter of Inner Duct					2.129	US$/meter

Comparison of Economy of COD-5B vs PVC for
500 meters of COD 110mm(O.D.) with 90mm(I.D.) : 5 subducts of 28/33mm
500 meters of PVD 145mm(O.D.) with 135mm(I.D.) : 5 subducts of 36.4/42.4mm