Step 6
1. Clean the bushing interface and the tee interface and
apply a thin layer of lubricant to each.
2. Push the tee connector onto the bushing.
Step 7
1. Insert the long threaded end of the clamping screw
through the hole of the crimp connector and into the
threaded hole of the bushing, taking care to avoid
cross-threading.
2. Tighten the clamping screw to a torque of 50 Nm
(37 ft-lbs) using a 22 mm socket wrench.
Step 8
1. Clean and apply lubricant to the insulating plug and
the tee connector interface.
2. Insert the insulating plug into the connector and
engage the threads of the clamping screw.
3. Tighten the insulating plug to a torque of 40 Nm
(30 ft-lbs), using a torque wrench and 24 mm socket
wrench.
Figure 6. Installation of tee connector onto bushing.
D
T400
24 kV
DT400
24 kV
Figure 7. Installation of clamping screw.
DT400
24 kV
CLEAN AND LUBRICATE
Figure 8. Installation of insulating plug.
4
DT400/436 tee connector installation instructions
MN650001EN September 2014 www.cooperpower.com