7 - 16
021519/01/09
5.2.2.1 Connecting Recommendation for the Cable Shield
Sensor Carrier
Sensor
Shielding / Ground
Lightning Protection
1. Metallic
measurement
mast, grounded
Isolated
mounting at
the measuring mast
(e.g. by non-metallic
brackets, holder etc. or
by metallic brackets,
holder etc. with isolated
plastic adaptors)
Apply the cable shield
between sensor and
data acquisition device
(e.g. datalogger) both-
sided.
Ground data acquisition
device.
Mount metallic lightning
protection rod on the mast.
Alternatively:
Install separate lightning
protection rod beside the
measurement mast.
2. Metallic
measurement
mast, grounded
Non-isolated
mounting
at the measurement
mast
(e.g. by metallic brack-
ets, holders etc.)
Apply cable shield be-
tween sensor and data
acquisition device (e.g.
datalogger) only one-
sided at the acquisition
device.
Ground data acquisition
device.
Mount metallic lightning
protection rod on the mast
in
isolated condition
, and
ground lightning protection
rod.
Alternatively:
Install separate lightning
protection rod beside the
measurement mast.
3. Metallic
measurement
mast, not grounded
(mounted in isolated
condition, e.g. on the
attic)
Non-isolated
mounting
at the measurement
mast
(e.g. by metallic brack-
ets, holders etc.)
Apply the cable shield
between sensor and
data acquisition device
(e.g. datalogger) both-
sided.
Ground data acquisition
device.
Mount metallic lightning
protection rod on the mast
in
isolated condition
, and
ground lightning protection
rod.
Alternatively:
Install separate lightning
protection rod beside the
measurement mast.
4. Non-metallic
measur-
ing mast (=isolated)
Mounting at the meas-
urement mast
(e.g. by metallic brack-
ets, holders etc.)
Apply the cable shield
between sensor and
data acquisition device
(e.g. datalogger) both-
sided.
Ground data acquisition
device.
Mount metallic lightning
protection rod on the mast,
and ground lightning protec-
tion rod.
Alternatively:
Install separate lightning
protection rod beside the
measurement mast.
Содержание 4.3351.00.000
Страница 15: ...15 16 021519 01 09...