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P a g e
OVR-15, 27 & 38 LV cabinet Instruction Manual
Important
G
ROUNDING
Always follow international, national and company specific regulations when
grounding the equipment.
All metal mounting frames and structures must be commonly grounded to the grounding grid at site.
Grounding is important to ensure proper operation of all electronic components, as well as to prevent
penetration of EMC noise and other transients into the sensitive electronic circuits (RER615 relay, ACM,
radios, etc.). Each LV cabinet includes two stainless steel welded grounding pads for grounding and M8
stud as shown in below figure. 80 Sq.mm cross-section, solid copper strip/equivalent is recommended
for grounding.
For the proper operation of electronic components, it is mandatory that the total impedance of
grounding grid at site should be less than one Ohm (1
Ω
). It is also mandatory to ensure that all the
grounding connections to the welded star grounding pad inside the LV cabinet are always intact and
secured.
Figure -13: Provisions for Grounding Connections on LV cabinet
Grounding terminal(M8)
