COD | PVC + COD sub duct system | ||||
---|---|---|---|---|---|
Duct O.D (mm) | Sub duct I.D (mm) | No. of sub duct (Lines) | Duct O.D (mm) | Sub duct I.D (mm) | No. of sub duct (Lines) |
100.0 | 28.0 | 4 | 114.0 | 28 / 36 | 2 / 1 (3) |
32.0 | 3 | ||||
110.0 | 36.0 | 3 | |||
32.0 | 4 | ||||
28.0 | 5 | ||||
28 | 4 | ||||
120.0 | 36.0 | 4 | |||
160.0 | 50.0 | 3 |
COD | PVC + COD system |
---|---|
No need to connect | 84~100 points (every 6m) |
COD | PVC + COD system |
---|---|
4 points | 334 points (every 6m) |
28 | 32 | 36 | 50 | |
---|---|---|---|---|
COD | 22.4 | 25.6 | 28.8 | 40 |
PVC+COD system | 14 | - | 18 | - |
The Case of KOBE, JAPAN Earth quake |
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The date of occurrence : JAN. 17 1995 (7.2 Richter Scale) |
The Extent of Damage |
- Casualties : Death 6,432 / Injury 40,000 |
-Property : ¥ 9,000 Billion ($ 69 Billion) |
COD | PVC + COD system | |
---|---|---|
Working Flow Steps | 3 steps | 5 steps |
No. of Sub Duct | Various Types | Max. 3 ∼ 4 lines |
Connecting Point | No need Between Manhole and Manhole | Every 6m |
Max. Cable O.D to be inserted into sub duct (Cable O.D / Sub duct I.D) |
80 / 100 | 50 / 100 |
% of damage from Earth quake | 0% | Over 90% |
Excavating depth | Below 60% | 100% |