Flowserve Byron Jackson Type M - Manual (Page 43)

® Byron Jackson Double Mechanical Seal Submersible Pumping Unit • 1042.293/9 • June 04
Page 43 of 68
4.4.14 Connect power cable to terminal box
NOTE Not all components or sub-
assemblies of a pumping unit are
necessarily supplied by Flowserve
or part of this delivery.
These user instructions apply only
to the components or sub-
assemblies supplied by Flowserve
in this delivery, see Chapter 12.1
"Scope of delivery".
DANGER
Before completing the electrical con-
nection, review Chapter 3.5
"Electrical requirements", Page 17.
The surface plate assembly is screwed in place
and the pumping unit hangs well above the well
base.
1. Measure and cut the cable to approximate
length for surface make up.
2. Strip the power cable, if necessary.
3. Feed the cable through the packing gland (or
glands) in wellhead and then into the terminal
box.
4. Connect the terminal box leads to the power
cable.
Each lead is to be waterproof.
5. Place the two final supporting cable clamp
assemblies 0.9 m to 1.2 m (3 feet to 4 feet)
below the wellhead.
6. If the power cable is a 4-conductor cable and
the grounding is in the scope of delivery:
make the ground wire connection to wellhead
with lug, lock washer and cap screw.
7. Lower the wellhead into its correct position
and secure it in place.
8. At the terminal box, megger the power cable
and motor for ground and continuity.
The reading should be 10 M Ω or more.
The pumping unit is now ready for connection to
the power supply.
4.4.15 Connect terminal box to main power
supply
NOTE Starting equipment for the pump
bowl assembly is furnished by the
customer.
1. Ensure that the rating of the equipment is
used conform to the National Electric Code
requirements for high reactance squirrel cage
motors.
Make certain that the starter main contacts
are in good condition and are working prop-
erly.
Also see that the overload relays are for the
correct full load current.
To ensure that the starter is operated safely,
verify that the panel housing is properly
grounded to a ground rod and to the surface
plate assembly.
2. Check the no-load voltage at the starter be-
tween all three phases. The voltage values
must be equal and must be approximately the
same as the voltage rating.
3. Strip back the outer sheath on the cable be-
tween 152 mm and 457 mm (6 " to 18") de-
pending on cable size and panel terminal re-
quirements.
Strip by scoring the sheath, lengthwise with a
knife or tool to the length needed, in several
places around the outside.
Do not cut all the way through and damage
the individual conductor insulation.
Grasp a scored segment of the sheath at the
end and peel like a banana.
Repeat this all the way around and cut off the
stripped segments.
4. Strip a short segment of insulation off the end
of each conductor for connection into the
starter load terminals.
5. Remove a conduit knock-out in the bottom of
the panel. Install the cable with its gasketed
grip in this hole, and connect to the starter
load terminals.
6. Ensure that the starter cannot be activated
accidentally.
7. Perform insulation test as described in Chap-
ter 6.8.1 "Insulation test", Page 53.
Insulation resistance must be at least 10 M Ω.