Rockwell Automation 8520 9/Series CNC Integration Maintenance Manual Documentation Set - Manual (Page 414)

Section 7B
Fiber Optic Connections
7B-2
Cable suspended in the air should be supported to withstand the load
produced by its own weight.
DOP, a plasticizer, commonly used with polyvinyl chloride insulated
wire (80% of wires) tends to degrade the acrylic core of fiber optic
cable. If fiber optic cable is tightly bundled with wire cables and these
cables are subjected to high temperature and humidity, the DOP in the
wire cable’s insulation may leech into the fiber optic cable and degrade
the core.
Fiber transmittivity may also be degraded if exposed to organic solvents
including, but not limited to:
Common Solvents Degrading Transmittivity
acetone methyl ethyl ketone
benzene toluene
ethyl acetate trichloroethane
gasoline trichloroetholene
methanol
Fiber optic cable can be exposed to the following liquids for long terms
without transmittivity being degraded:
Cable Resistant to these Solvents
NaOH (10%) at 60 ° C H2SO4 (10%) at 60 ° C
NH4 (5%) at 60 ° C NaCl (5%) at 60 ° C
chlorinated hydrocarbon cutting oil 1 distilled water
mineral oil based dielectric fluid 1
1 The PVC jacket of the cable will be affected but fiber attenuation will not be
affected.
Fiber optic cable can be exposed to the following liquids for short terms
without transmittivity being degraded:
Cable Resistant to these Solvents for Short Term only
isopropyl alcohol soap suds (0.5%) at 60 ° C
sodium phosphate based flux cleaners (0.5%
sodium phosphate synthetic detergent)
Ammonium hydroxide based flux
cleaners