September 2021
Installation, Operation and Maintenance Manual
VCIOM-01249-EN Rev. 0
Installation
14
Section 3: Installation
Figure 13
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 plastic standard protection plugs
supplied with the actuator with metal plugs.
3.7
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.
Certified cable entries:
•
Standard ASA/NPT (cable entries 2x1”+1x1 1/2”).
•
Metric ISO 965 (cable entries 2xM32+1xM40).
Remove the cable entry plugs.
NOTICE
•
To prevent any water infiltration through the line 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.
To guarantee weatherproof and explosionproof fit, screw the cable glands tightly (at least 5
turns) 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 now to avoid losing the dismantled parts.
