waterproof tape produced by 3M or COTRAN.)
2.
Use a piece of sandpaper to polish burrs at the stripped position of the optical cable. Then,
use insulation tape to wrap the stripped optical cable. When wrapping the waterproof tape,
ensure that fiber cores are force-free.
3.
Cut excess fiber strength member for grounding.
During onsite operations,
ensure that optical fibers
are force-free and the bend
radius is greater than 40
mm. Otherwise, services
may become abnormal or
even fail due to degraded
signal transmission.
The fiber strength member
must be securely grounded.
In addition, the ground
point of the fiber strength
member must be at least 3
meters above the ground
(which prevents manual
touching), and no
combustible materials are
around the ground point
within a distance of 0.3 m.
If the fiber strength
member fails to be securely
grounded, it must be
insulated. Otherwise, the
fiber strength member may
introduce heavy currents if
it connects to a heavy-
current power line,
threatening human safety.
Grounding solution 2: The fiber strength member is grounded inside a network box.
The fiber strength member must be connected to a ground bar at the ground point using a ground
cable. The ground point can connect to the network box using a metal in an equipotential manner.
When the fiber strength member connects to a heavy-current power line, heavy currents may be
discharged inside the network box using the ground bar. If this happens, sparks may occur at the
contact point between the fiber strength member and the ground bar, which may burn the device
and the network box. To prevent this issue from occurring, use solution .
Network box
ODF
MDU
220 V AC
Power cable
Fiber strength member
Optical fiber
Exterior wall
Waterproof tape
Sleeve
Ground bar
Strong-current discharge path
> 3 m
Fiber protection tube
5 mm
Sandpaper
Optical cable Metal armored layer
Fiber strength member Loose tube
Fiber
CAUTION
