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EATON CORPORATION
www.eaton.com.cn/electrical
Instruction Booklet IB
Effective January 2017
XAP Series Busduct
Storage, Installation, and Maintenance
Tap-off Unit Inspection
When inspecting and performing maintenance on tap-off units, ensure
the breaker is in the open position and that the power to the busduct is
turned off.
1. Make sure the breaker is in the open position;
2. Turn off power to the busduct;
3. Using a multi-function meter, open the tap-off unit door and check to
ensure there is no voltage present on the line side of the unit;
4. For fusible units, check the fuse clip contact pressure and contact
means. If there are any sign of over-heating, replace fuse clips;
5. Look for any signs of deterioration of insulating materials and
protective barriers;
6. Check the operation of all mechanical components.
7. Check the mechanisms of all electrical and mechanical interlocks
and padlocking means;
8. Check for missing or broken parts, rusting, corrosion, dirt, and
excessive wear;
9. Check the line and load connections to ensure proper torque.
10. Clean off any arc spatter or soot deposits;
11. Replace any damaged parts;
12. Operate each switch or circuit breaker several times to ensure
proper working order.
Note
These maintenance instructions and procedures do not represent an
exhaustive list of maintenance steps required to maintain safe
operation of the busduct and tap-off units under all applications.
Specific applications may require additional steps and procedures. For
additional information or assistance with issues not covered sufficiently
in this publication, contact the local Eaton sales office.
DANGER
HAZARD OF ELECTRICAL SHOCK OR BURN. TURN THE POWER TO THE
BUSDUCT OFF BEFORE INSTALLING, REMOVING, OR WORKING ON THIS
EQUIPMENT.
WARNING
RECOGNIZED SAFETY PROCEDURES MUST BE FOLLOWED PRIOR TO ANY
WORK OR MAINTENANCE BEING PERFORMED.
