Sensepoint XCD RFD Technical Manual SPXCDHMRFEN Issue 4_08-2016
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The Earth Screen of the eld cable should be “tied to Earth” or connected to Ground at
one point only. It is common practise to adopt a STAR EARTH connection regime where
all instrumentation Screens are connected at one common point.
The Screen at the other end of the cable should be “parked” or terminated into a blank
terminal.
The following diagrams show how to install the wire into the ground screw of the
enclosure.
6.6 Ground Terminal Wiring
Internal Ground connection: Utilize the shield of the wiring cable recommended in the
wiring instructions. For connection to this terminal. Twist the shield wire to avoid stray
shield wires, Loosen the screw sufciently and wrap the wire around the screw in a “U”
shape. Raise the clamp and place the wire between the clamp and ground base, lower the
clamp and tighten the screw to 6.9lb-in torque.
External Ground Connection: If required by local authority, Utilize a No 14 AWG copper,
(Stranded or Solid), wire. Loosen the screw sufficiently to enable ‘wrapping the wire
around the screw in a “U” shape. Raise the clamp and place the wire between the clamp
and ground base, lower the clamp and tighten the screw to10.4lb-in torque. A suitable
Ring or Spade type insulated crimp terminal may also be used to accommodate the M4
size external earth screw.
Loosen the bolt Insert cable Fasten the bolt
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