ABB LS4000 Operating Instructions Manual page 144

144
Other connection
cables
Unused cable ends in
explosion-proof
components
Unused cable glands
Sealing the junction
box
LS4000, LS4060 DIODE LASER ANALYZERS | OI/LS4000/O2-EN REV. A
Read the installation manual from the manufacturer of the cable glands be-
fore beginning installation.
Proceed as follows:
Step Procedure
1 Disassemble the cable gland.
2 Remove the insulation and the sheath from the connection cable.
When doing so, ensure that the black and white cable pairs stay
together.
3 Run the connection cable through the disassembled cable gland.
4 Make up the potting compound, and insert it between the wires of
the connection cable, both around the wires and in the pipe fit-
tings provided. Remove the excess potting compound.
5 Run the connection cable through the connection socket and let
the potting compound harden.
6 Screw the connection socket into the internal thread of the junc-
tion box.
7 Feed the wire bundle through the connection socket and into the
junction box. When doing so, also ensure that the black and white
cable pairs stay together.
It is recommended that you number the wires before connecting
them to the terminal block with the labeling clips included in ac-
cordance with the tables on pages 146 and 147 according to the
terminal number. The number of the wire pair is printed on each
white wire.
8 Attach the connection cable to the junction box by screwing the
union nut onto the connection socket.
In potentially explosive atmospheres, use suitable conduits to connect the
analog and digital outputs, the T/P-probes and the power supply.
Note the regulations of the NEC standard or local regulations regarding the
specifications and installation of the cables, as well as the sealing of the cable
glands.
In order to ensure explosion protection, deal with unused cables using one of
the following methods:
 Insulate and fix each individual wire end
 Connect the end of each individual wire to the local potential equalization
terminal
 Position the ends of each unused wire on an unused terminal
In order to ensure the explosion protection: Keep unused cable glands sealed.
To guarantee explosion protection, close the junction box after connecting
the components.