Plastic
insulating
tape
Pressure sensitive tape
Black tape
Plastic
insulating
tape
Pressure sensitive tape
Anterior layer
Posterior layer
Joint of three
conductors
1. Wrap the joint tightly with black tape, with no
copper wire exposed, see Figure 3.
2. Wrap the joint with pressure sensitive tape
(self-adhesive tape) for three layers, with the
posterior layer exceeding the two ends of the
previous layer by about 10mm; stretch the tape
to two times of the original length prior to
wrapping.
3. Wrap the joint with plastic insulating tape
(yellow transparent) for one layer.
1. Tidy up the core wire joint, and wrap it with
pressure sensitive tape for four layers to cover
the cable sheath by 30mm at two ends, with the
posterior layer exceeding the two ends of the
previous layer by about 10mm.
2. Wrap the joint with plastic insulating tape for
three layers, with the posterior layer exceeding
the two ends of the previous layer by about
10mm.
Figure 1
Figure 2
Figure 3
It's better to adopt air welded
joint
Cold-pressed sleeve joint
method can also be adopted
When wrapping the anterior layer
of black tape, it's not allowed to
l e t c o p p e r w i r e e x p o s e o r
penetrate the tape
Cable Wiring Diagram
15. After electric pump is powered off, it can be lifted out of water surface only after
electric motor is cooled to room temperature to ensure safety.
V. Maintenance
1. The insulation resistance between pump winding and enclosure shall be checked
regularly, and the insulation resistance must be greater than 1MΩ (megohm) when
approaching the working temperature; otherwise, corresponding measures must be taken
to reach the requirements prior to use.
The insulation resistance must be greater
than 1MΩ (megohm) when approaching
the working temperature
