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VAMP Ltd
Arc protection system
Technical description
VAMP 221
VM221.EN013
VAMP 24h Technical Support: +358 (0)20 753 3264
77
Figure 7.2.3-4 Arc sensor VA 1 EH
ARC-SLx
ARC-SLx is an fibre sensor that can be mounted on the
switchgear to monitor several compartments simultaneously
(various bus-bar compartmets, etc.).
The fibre must not touch any live parts of the switchgear or
other hot components, since too high temperatures may destroy
the fibre.
When mounting the sensor on the switchgear, ensure that the
bending radius is long enough (min. 80 mm) and that it is safe
from the sharp edges of the switchgear.
NOTE!
The sensor must not be exposed to direct sunlight or other
strong light. Do not mount the sensor directly under a light
source.
NOTE!
To avoid false tripping, cover any unused channels of the I/O
unit.
VA 1 DP
The portable pin sensor can be temporarily connected to the I/O
units. It is used to improve safety when working with live
switchgear, for example, Attach the sensor close to the working
area, for example in the breast pocket of the maintenance man.
A pin sensor operates in the same way as a fixed arc sensor.
The only difference is free mobility within the limits of the
connecting cable.