SecoGear – Installation, Operation and Maintenance Manual 27 of 56
Where not connected to other switchgear, the welding nut plates
are designed to receive bolts for the left or right end covers.
Always bolt from the outside of the switchgear. First, assemble
and bolt the front trim cover, and then assemble and bolt the
rear trim. Finally, bolt them together in the middle of the gear.
Wiring
Control wires (up to #10 gauge wire) that cross shipping splits
have color coded ends and are labeled as plug connectors at
each split. Ensure all plugs are properly reconnected.
Taped Insulation
SecoGear is provided with main bus joint and cable lug boots to
provide insulation protection over connection points. In special
cases you may need to use taped insulation or another method
to protect the connections. This work would not be performed
at the factory, but we are providing some basic reference
information in this section.
With the new and improved insulating material available on the
market, we highly recommend going to the vendors’ website to
review current product offerings and installation methods that
will best work for your situation. Products may include tapes,
putties, and heat-shrinkable options. The following examples
illustrate some of the key concerns and issues when installing
tape or other non-boot style insulation. Carefully follow the
material vendors’ installation instruction to assure proper
coverage and adhesion.
The following insulation system involves the use of high voltage
insulating tape and electrical-grade rubber-based putty.
Electrical grade putty will be used only when required to grade
voids and smooth out sharp edges of joints, terminator, or
entrance bushing connections. The high-voltage tape will be
used both as filler and also as the final insulation covering for
these examples. Overlap any expired roll by one-half turn.
Attach Trim Covers
Plugs may contain CT circuit wiring. Do not disconnect
plugs when the equipment is energized, since opening
energized CT circuits can create hazardous high voltages.
WARNING
!
Figure 4-8: Front Left Trim Covers Installed
Figure 4-9: Side Sheet Assembly
Rear End
Cover
Front End
Cover
