GE Industrial Solutions Entellisys Installation - Manual (Page 69)

63
Entellisys Low Voltage Switchgear
Chapter 9. Maintaining the Switchgear
ATTENTION: Assurez-vous que la condition ayant causé
le surchauffement a été corrigée avant de mettre sous
tension.
2. Check all bolts that hold cable terminals to the
connection bars for tightness.
3. Check the neutral bus and ground bus connection and
mounting bolts for tightness.
4. Check that all secondary control wiring connections
are tight and that all control cabling is intact.
9-5 Overall Switchgear
Make the following checks on the complete switchgear
equipment.
1. Clean and inspect all painted surfaces and retouch
where necessary.
2.
Check to see that all anchor bolts and other structural
bolts are tight.
3.
Check that all breaker and instrument compartment
door latches operate properly.
4.
If the switchgear is equipped with heaters, check to see
that all heaters are energized and operating.
5.
For exterior vent openings in equipment furnished with
air filters, the foam filter elements should be removed
and washed in warm soapy water, rinsed, and
reassembled at least annually. Elements should be
inspected before re-assembly and replaced if any signs
of deterioration are evident.
9-6 Paint Refinishing
Indoor switchgear is finished with ANSI-61 gray acrylic
enamel paint. To refinish damaged areas, remove all loose
paint, rust, scale, oil or grease. Sand any scratches smooth
using 220 grit paper or finer.
—Apply a coat of acrylic enamel primer with a viscosity of
approximately 24-32 seconds using a #2 Zahn cup. Reduce
with thinner if needed. Air-dry the primer for a minimum of
30 minutes, and then apply the finish color coat of acrylic
enamel. The topcoat should be applied within 24 hours for
best adhesion.
—If the area is to be spray-coated, thin the acrylic enamel.
This thinning should only be necessary if the paint was
received in a five-gallon drum or more. The recommended
viscosity for the enamel topcoat should be 24-32 seconds with
a #2 Zahn cup. Both the primer and paint should be applied
only when temperature is above 55 degrees Fahrenheit.
—Application of special paint will be per the manufacturer’s
Product Data Sheet that includes instructions on thinning
and application.
9-7 Circuit Breaker Lifting
Mechanism
Under normal conditions, no special maintenance procedures
or lubrication is required for this device. If the cable is
abraided under any condition, it should be inspected for
broken strands or other damage and replaced if necessary.