Example 3, Mounting In A Cir- Cuit Breaker Cubicle - ABB Arc Guard System TVOC-2 Installation And Maintenance Manual

Installation
Example 3,
Mounting in a cir-
cuit breaker cubi-
cle
30
In a circuit-breaker cubicle there is a risk of detecting breaking arcs uninten-
tionally, if the detector is placed above the busbars. In such a cubicle it is
better to place the detector at the bottom, see the figure below.
• Use the same mounting bracket as for top mounting but the bend is turned
upwards and the detector placed on the upper side.
• Drill a hole 20 mm (0.79 inches) in front of the busbars, where the detector can
be located.