Cooper Bussmann CT02MAN - Manual (Page 42)

CABLE TRAY ACCESSORIES.
B-Line manufactures a full line of prefabricated
accessories for all types of B-Line cable trays. The
use of the appropriate accessories will provide
installation cost and time savings. In addition to
providing desirable electrical and mechanical
features for the cable tray system, the use of the
appropriate accessories improves the physical
appearance of the cable tray system. Some of the
most common accessories are shown below.
FIREPROOFING CABLE TRAY
Cable trays should not be encapsulated for fire
protection purposes other than for the short lengths
at fire rated walls unless the cables are adequately
derated. Encapsulation to keep fire heat out will also
keep conductor heat in. If conductors cannot
dissipate their heat, their insulation systems will
deteriorate. If the cable tray will be encapsulated,
the cable manufacturer should be consulted for
derating information.
CABLE TRAY MAINTENANCE AND
REPAIR
If the cable tray finish and load capacity is
properly specified and the tray is properly installed,
virtually no maintenance is required.
Pre-Galvanized - This finish is for dry indoor
locations. No maintenance is required.
Hot Dip Galvanized - This finish is maintenance
free for many years in all but the most severe
environments. If components have been cut or
drilled in the field, the exposed steel area should be
repaired with a cold galvanizing compound. B-Line
has a spray on zinc coating available which meets
the requirements of ASTM A780, Repair of Hot
Dip Finishes.
Aluminum - Our cable tray products are
manufactured from type 6063-T6 aluminum alloy
with a natural finish. The natural oxide finish is self
healing and requires no repair if it is field modified.
Non-metallic - Fabrication with fiberglass is
relatively easy and comparable to working with
wood. Any sur face that has been drilled, cut,
sanded, or otherwise broken, must be sealed with
a comparable resin. Polyester or vinyl ester sealing
kits are available.
Cable tray should be visually inspected each year
for structural damage i.e., broken welds, bent rungs
or severely deformed side rails. If damage is evident,
from abuse or installation, it is recommended that
the damaged section of cable tray be replaced rather
than repaired. It is much easier to drop a damaged
section of tray out from under the cables than it is to
shield the cables from weld spatter.
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Cooper B-Line, Inc Cable Tray Manual
Ladder Dropout Horizontal Adjustable
Splice
Frame Box Connector
Cable Support Fitting
Vertical Adjustable
Splice