a. |
Quick and economic installation by
saving labor and materials. COD laying in-between two manholes
may be done by single laying operation regardless of built-in
multiple numbers of inner ducts and length in-between two manholes.
|
b. |
Saving working period considerably.
|
c. |
Saving Fiber Optic Cable owing to perfect alignment
of inner duct straight, while insertion of inner duct through
installed PVC ducting system may cause twist consuming more
length of Fiber Optic Cable.
|
d. |
ик111mm of COD is readily built-in of 5 inner
ducts of ик28mm, while the conventional PVC ducting system is
limited to only three (3) inner ducts in the equivalent diameters:
potentially saves cost greatly (approx. 170% of capacity efficiency).
|
e. |
Reducing excavation quantities, as the required
trench width is being required much less than that of the conventional
method (less than 60% of conventional system).
|
f. |
Less traffic troubles at job site and its adjacent
area in appreciation of:
| 1) |
Considerably less working period
in comparison to the conventional method. |
| 2) |
Not many materials required to be mobilized and stored
at job site, but transported in reels keeping job site
clean and neat. |
| 3) |
Less transportation requirement for the disposal of
removed materials owing to the reduced excavation quantities;
and |
| 4) |
Less transportation requirement for sand transportation
to job site for padding at the excavated trench bed and
above the laid duct. |
| 5) |
No inner ducts mobilization after installation
of Outer Duct is required.
|
|
g. |
Normal operation allows single laying up to 500
meters, while special operation with special design of COD trailer
allows as much as over 1,600 meters in single laying operation.
Which saves both coupling or connection materials and labors
greatly.
|
h. |
Moving of COD roll in the job site and easy installation
thereof by means of releasing COD from reel are with least manpower
owing to the benefit of light-weight and smooth releasing.
|
i. |
The maximum diameter of Fiber Optic Cable to
insert into the inner duct is as much as 80% of Inner Duct diameter
while conventional PVC can only house up to 50% at maximum (efficiency:
160%).
|
j. |
No need to construct additional manholes at the
curving points, while the conventional products need either
such constructions or special bending.
|
k. |
Pre-lubrication or Silicon coating: COD does
not necessarily need neither pre-lubrication nor Silicon coating
inside of inner duct to facilitate easy insertion of cables
owning to perfect alignment of inner ducts.
However, should clients require such Silicon Coating, we are
ready to manufacture and supply our product as requested by
any client.
|
l. |
Models: Various models of COD are available depending
on requirements for numbers and diameters of inner-ducts. Customer
designed combination of inner ducts as well as dimension is
acceptable.
|
m. |
Color scheme of inner-ducts: Customer-designed
colors are acceptable. The available Colors of ready-made products
are blue, green, yellow, white, scarlet, purple and black.
|
n. |
Insertion of Cable into the installed duct: Air Jetting method
(Super Jet) will insert the cables into the installed ducts
regardless of the intervals of manholes.
|
o. |
Thermal expansion & contraction: Thermal expansion and
contraction of outer ducts are comparatively lower than that
of conventional ducting system, and stay at the same rate owing
to the equivalent raw materials of both inner and outer ducts.
|
p. |
COD maintains good flexibility allowing arc bending manually
up to 90 degree or more at the even angle, and does not require
any particular tools for bending or straightening. |
