Xylem FLYFT P7900 Installation, Operation And Maintenance Manual page 37

The prepared SUBCAB ™ cable
1
5
1. T1+T2 twisted pairs in control element
2. Drain wire in control element (tinned copper strands) with shrink tube
3. Aluminum and textile layers
4. Insulation jacket or plastic jacket, for the control element
5. Power conductors
6. Ground (earth) conductor with yellow-green shrink tube
1. Peel off the outer jacket at the end of the cable.
2. Prepare the control element:
a) Peel the insulation jacket or plastic jacket.
b) Peel the aluminum and textile layers.
c) Put a white shrink tube over the drain wire.
d) Twist T1+T2 and T3+T4.
e) Put a shrink tube over the control element.
3. Prepare the ground (earth) conductor of the SUBCAB
a) Peel the yellow-green insulation from the ground (earth) conductor.
b) Check that the ground (earth) conductor is at least 10% longer than the phase
c) If applicable, put a cable lug on the ground conductor.
4. Prepare the ground (earth) conductor of the screened SUBCAB
a) Untwist the screens around the power conductors.
b) Twist all power conductor screens together to create a ground (earth) conductor.
c) Put a yellow-green shrink tube over the ground (earth) conductor.
P7900 Installation, Operation, and Maintenance Manual
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The aluminum foil is a conductive screen. Do not peel more than necessary, and
remove the peeled foil.
Figure 16: Aluminum foil on the control element.
Make sure that the conductive aluminum foil and drain wire are covered.
conductors in the cabinet.
The prepared screened SUBCAB
2
1
5
9
6
7
1. T1+T2 and T3+T4 twisted pairs in control element
2. Drain wire in control element (tinned copper strands) with shrink tube
3. Aluminum and textile layers
4. Insulation jacket or plastic jacket, for the control element
5. Power conductors
6. Plastic laminated aluminum foil, screen
7. Ground (earth) conductor with yellow-green shrink tube
8. Uncovered screen/braided wire
9. shrink tube
™
cable:
4 Installation
™ cable, without cable lugs
3 4
8
™
cable:
35