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Benefits COD by working stages
Benefits of COD by Working Stages
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1. Preparation Stage:
- a.Application of COD reduces volume of excavation by reducing width of trench, as no individual piece-by-piece duct connection works in the trench are required. In addition, it reduces working space at job site as well as transportation.
- b.Application of COD reduces damaging risk of existing underground infrastructures by reducing trench dimensions.
- c.Application of COD reduces disposal of excavated soil owing to less excavation.
- d.No fine leveling work of trench bed is necessarily required but rough leveling.
- e.No sand padding on trench bed is necessarily required owing to high flexibility and Compressive Load (292kgs/㎠).
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2. Installation Stage: Application of COD offers the following advantages.
- a.No piece-by-piece individual connection works in the trench are required, coupling works may be done on the ground if required.
- b.Great saving of construction period.
- c.Great saving of traffic troubles.
- d.Absolutely no inner duct insertion process is required.
- e.Keeps job site clean from bundles of mobilized materials.
- f.No dual mobilizations of materials are required.
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3. Finishing Stage: Application of COD offers the following advantages.
- a.No risk of damaging the installed duct by compaction or heavy traffic above the trench after completion owing to good Compressive Load of COD.
- b.Quick removal of temporary site facilities or mobilized materials from job site (COD reel may be released as mounted on trailer or truck).
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4. Maintenance Stage: Application of COD offers the following dvantages. The following features of COD enables to save maintenance cost upon completion of installation.
- a.Free from water or humidity infiltration.
- b.Better fire resistance compare to the conventional PVC duct system.
- c.Better Compressive Load (approx. 3 times of PVC).
- d.Easy insertion & replacement of cables owing to absolutely no twisting risk but perfect alignment of the inner ducts owing to welded & built-in single body.
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