Electrical Connections; Cable Connection - Emerson Bettis XTE3000 Installation, Operation And Maintenance Manual

Installation, Operation and Maintenance Manual
MAN-02-04-97-0713-EN Rev. 1
C.7.3

Electrical Connections

The electrical connections shall be made in accordance with the wiring diagram and
to the general instructions associated with the documentation of the base unit.
C.7.3.1 Connection for Ex-e Terminals Enclosure
The wires must be terminated in accordance with the following method:
Type of terminal:
Eye dimensions:
Recommended tightening torques:
Wires section:
C.7.4

Cable Connection

Sealing of conduit entries must be carried out in accordance with national standards or as
indicated by the relevant regulatory authorities.
Sealing methods and cable glands must be approved and separately certified for use in
hazardous areas.
Two earth connection points - one internal and one external - are located on the XTE3000
base model (see Figure C-3) for connection to ground cables.
Figure C-3
NOTICE
To prevent water infiltration through the line cable conduits, be sure the cable glands used
possess the minimum degree of protection required by the plant and are specified on the
actuator label. If a rigid conduit makes a connection to the plant, it is recommended to place a
flexible pipe connection between the conduit and the conduit entry of the additional extension.
Appendix
Internal earth stud
Insulated ring tongue
5.5 mm (0.22 in) for power cable
3.2 mm (0.13 in) for control cables
2.0 - 2.8 Nm (17.7 - 24.8 lb.in) for power cables
1.0 - 1.5 Nm (8.9 - 13.3 lb.in) for control cables
4 mm² (0.006 in²) for power cables
2.5 mm² (0.004 in²) for control cables
External earth stud
Appendix
October 2019
141