Shielding Rtd/Ma Instrument Cables - ABB RELION 615 Series Installation Manual

Connecting
5.4.4

Shielding RTD/mA instrument cables

The RTD/mA inputs are connected by screened cables (1 mm
example, Unitronic 300S (formerly Unitronic 300CY), manufactured by LAPP Group.
1.
64
Other manufacturers' cables with similar technical features can also be
used. When selecting a suitable sensor cable, observe also other possible
customer installation requirements.
Prepare screened cable with a drain wire.
a) Select a drain wire (0.75 mm
The wire combination green/yellow should not be used as the
drain wire has no protective function.
b) Install the drain wire.
The wire can be installed, for example, with a Shield-Kon one-
piece connector (Thomas & Betts). For detailed instructions, see the
manufacturer's manual.
c) Protect the cable end with a heat shrinkable cap.
Table 3: Drain wire lenghts
Wire from connector
X110
X130
2
) as short as possible.
Length
~200 mm
~300 mm
1MRS756375 T
2
/AWG18), for
615 series
Installation Manual