Microwave
radio
relay
link
ZENITH
80
45/52
1.2
6.
SAFETY
CHECK
Each
ZENITH
80
radio
link
is
verified
within
check
‐
out
inspection,
and
its
parameters
are
measured
according
to
standards
(Inspection
and
testing
of
electrical
installations).
According
to
standards
the
ODU
of
the
radio
relay
link
ZENITH
80
is
an
electrical
device
used
in
the
outside
environment,
supplied
by
SELV
(Safety
Extra
‐
Low
Voltage)
supply
and
inside
of
the
unit
there
is
no
higher
voltage
than
SELV.
The
unit
allows
connection
of
dead
parts
by
a
grounding
bolt
to
a
protection
circuit
that
serves
also
as
a
protection
against
overvoltage
and
overcurrent
of
atmospheric
origin.
In
agreement
with
the
standards
the
ODU
belongs
to
•
according
to
its
use
–
appliances
used
in
outside
areas
•
the
class
III
according
to
protection
–
protection
against
injury
by
electric
current
is
based
on
the
connection
to
a
SELV
supply,
with
the
voltage
no
higher
than
SELV.
According
to
the
standards
regular
inspections
and
checks
of
safe
status
during
operation
are
recommended
once
every
24
months.
Inspections
and
checks
are
recommended
to
be
performed
by
the
supplier
professional
service.
The
following
activities
are
recommended
during
regular
checks
and
inspections:
•
Check
of
ODU
tightness.
•
Condition
of
antenna
OPN
(protection
against
icing)
cover.
•
Status
of
interconnect
cable
and
its
grommets.
•
Tightening
and
lubrication
of
all
attachment
bolts
and
nuts.
No
construction
part
can
be
weakened
or
damaged
by
corrosion.
•
Checking
of
grounding
connection
strength
at
grounding
points
and
their
connection
to
earth.
•
Finding
possible
damage
or
changes
of
the
whole
system
that
would
require
further
measures
and
the
verification
of
safety.
•
We
recommend
measuring
and
recording
the
level
of
received
signal.
