0 wire sizing, splicing and power supply, 1 splicing wire to motor leads, 0 wiring the controls and switch – Xylem IM096 R07 4 Submersible Pumps User Manual

Page 9

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3.0 WIRE

SIZING,

SPLICING and

POWER SUPPLY

Always follow the National Electric

Code (N.E.C.), Canadian Electrical

Code, and any state, provincial, or

local codes.

We suggest using only copper wire.

Size wire from the charts found in

the Technical Data section of this

manual, MAID manual, or an

N.E.C. (National Electric Code)

code book. If discrepancies exist the

N.E.C. book takes precedence over a

manufacturer’s recommendations.

3.1 Splicing Wire to

Motor Leads

When the drop cable must be spliced

or connected to the motor lead, it is

necessary that the splice be water-

tight. The splice can be done with

heat shrink kits or waterproof tape.

A. Heat Shrink Splice Instructions

To use a typical heat shrink kit: strip

½" from the motor wires and drop

cable wires; it is best to stagger the

splices. Place the heat shrink tubes

on the wires. Place the crimps on the

wires and crimp the ends. Slide the

heat shrink tubes over the crimps and

heat from the center outward. The

sealant and adhesive will ooze out

the ends when the tube shrinks. The

tube, crimps, sealant, and adhesive

create a very strong, watertight seal.
B. Taped Splice Instructions

A) Strip individual conductor of

insulation only as far as

necessary to provide room for a

stake type connector. Tubular

connectors of the staked type are

preferred. If connector O.D. is

not as large as cable insulation,

build-up with rubber electrical

tape.
B) Tape individual joints with

rubber electrical tape, using two

layers; the first extending two

inches beyond each end of the

conductor insulation end, the

second layer two inches beyond

the ends of the first layer. Wrap

tightly, eliminating air spaces as

much as possible.
C) Tape over the rubber electrical

tape with #33 Scotch electrical

tape, or equivalent, using two

layers as in step "B" and making

each layer overlap the end of the

preceding layer by at least two

inches.
In the case of a cable with three

conductors encased in a single outer

sheath, tape individual conductors as

described, staggering joints.
Total thickness of tape should be no

less than the thickness of the conduc-

tor insulation.

4.0 WIRING

THE

CONTROLS and

SWITCH

4.1 Mounting the Motor

Control Box

Single phase 3-wire control boxes

meet U.L. requirements for Type

3R enclosures. They are suitable for

vertical mounting in indoor and out-

door locations. They will operate at

temperatures between 14ºF (-10ºC)

and 122ºF (50ºC). Select a shaded,

dry place to mount the box. Insure

that there is enough clearance for the

cover to be removed.

WARNING

Hazardous voltage

can shock, burn or

cause death.