Condux Gulfstream 350, Руководство пользователя и инструкция по безопасности

Страница: 12 / 38

12
6.
CABLE CRASH TEST
Cable Crash Testing is a very quick and easy step to be completed before attempting
the installation of cable with the Gulfstream™350. This test is necessary to set the
air motor pressure of the blower below the point that it may cause cable damage
as a result of over pushing or encountering an obstruction in the sub-duct system.
It is also a necessary step to set the proper clamp force on the cable so there is no
damage caused by slippage of the tractor drive at the desired air motor pressure.
For small fiber (4-6 mm) start at lower settings.
For medium size fiber (6-10 mm) start in the middle.
For larger fiber (10-16 mm) start at higher settings.
Every cable has different pushing values and these values vary depending on the
duct they are installed into. Example: A cable with a crash test value of 80 psi (5.51
bar) in 33 mm I.D. duct, may have a crash value of only 60 psi (4.13 bar) in a 40
mm I.D. duct. This is because the area of lateral movement is larger as the duct size
increases.
!CAUTION: Always wear protective equipment: hard hat, safety glasses,safety shoes
and work gloves.
NOTE: The air motor pressure adjustment will have an effect on the installation
speed of the blowing unit. This is not a flow adjustment. This is a pressure
adjustment to prevent damage to the cable that can be caused by excessive pushing
force.
For the Crash Test to work properly use the same size cable and duct
that will be used for the job.
1. Select appropriate duct clamp and duct seal, install in the airblock.
2. Attach 12' (4 m) of duct to the Gulfstream™ 350. (Figure 6)
3. If using traditional duct: Install Conduit Pulling Eye on the receiving end of the
duct or a micro duct end stop. (Figure 7)
Figure 6. Placement of Conduit in
Conduit Seal & Conduit Clamp
Figure 7. Installing Conduit
Pulling Eye