Installation, Operation and Maintenance Manual
MAN-10-04-100-0711-EN Rev. 0
October 2020
23
Installation
Section 4: Installation
4.12
Cable Entries
The sealing of cables and conduit entries should be carried out in accordance with
National Standards or the Regulatory Authorities that have certified the actuators.
This is particularly true for units that are certified for use in hazardous areas where the
method of sealing must be to an approved standard, and cable glands, reducers, plugs
and adapters must be approved and separately certified.
NOTE
•
To prevent any water infiltration through the cable conduits, make sure the cable
glands have the minimum protection degree required by the plant.
•
If rigid conduits are used, we suggest placing a flexible pipe connection between the
conduit and the terminal board.
In order to properly connect the cables, remove the cable entry plugs and make all the
necessary connections. To guarantee the proper weatherproof fit, degree IP66/68 must
be ensured: screw the cable glands tightly and block them with a thread sealant. The use
of a thread sealant is necessary in case of explosionproof application.
If some parts of the cable glands have been removed while working on the cable entries,
put them back into place in order to avoid losing the dismantled parts. Unused entries:
•
For explosionproof construction: unused entries must be plugged with metal
explosionproof plugs and blocked with a thread sealant
•
For weatherproof construction: replace the standard plastic protection plugs
supplied with the actuator with suitable plugs to guarantee the requested
protection degree
Figure 13
Overview of the Cable Entries Conduits
NOTE
In order to physically separate the power from the signal terminal, place the power
clamps protection (provided with the actuator) on the power terminal, once you have
completed the power cable connection. This will avoid any accidental contact with the
power terminals during the cabeling operation on the signal terminals.
