Siemens 81000 90H35

Installation
Page
6
AWARNING
Electrical
Connections
Inspect
all
insulated
wiring
to
see
that
no
damage
has
resulted
from
installing
the
contactor
.
Test
the
high
voltage
wiring
for
possible
grounds
or
short
circuits
.
A
dielectric
test
at
2.25
times
the
nominal
system
voltage
plus
2000
volts
applied
for
one
minute
between
phases
and
from
ail
phases
to
ground
is
the
preferred
method
.
Be
sure
to
disconnect
any
devices
(
control
power
transformer
,
etc
.
)
from
the
circuit
which
could
be
damaged
by
the
test
voltage
.
If
a
hi
-
pot
tester
is
not
available
,
then
a
Megger
test
at
1000
volts
is
a
suitable
second
choice
.
Accidental
contact
with
energized
wiring
or
bus
system
can
cause
electric
shock
,
burn
or
electrocution
.
Disconnect
and
lock
-
out
incoming
power
and
control
voltage
sources
before
begin
-
ning
work
on
this
or
any
other
electrical
equipment
.
h
Check
all
control
circuit
terminals
with
a
voltmeter
to
make
certain
that
the
equip
-
ment
is
totally
deenergized
.
Use
only
ap
-
proved
high
voltage
test
equipment
to
check
voltage
on
power
terminals
.
Do
not
attempt
to
measure
high
voltage
with
a
volt
-
ohm
meter
.
AWARNING
Excessive
dielectric
test
voltages
can
cause
harmful
x
-
radiation
to
be
emitted
from
vacuum
bottles
.
It
is
recommended
that
a
safety
ground
be
connected
to
the
power
bus
after
the
sys
-
tem
has
been
deenergized
,
and
prior
to
working
on
the
equipment
.
Follow
the
pro
-
cedure
outlined
in
the
pre
-
energization
check
section
of
this
manual
before
power
is
restored
.
h
Vacuum
-
type
interrupters
can
produce
x
-
rays
if
they
are
subjected
to
sufficiently
high
voltages
.
The
vacuum
bottles
used
in
Siemens
type
90
H
3
contactors
will
not
produce
harmful
x
-
rays
at
applied
vol
-
tages
of
40
kV
or
less
.
High
-
potential
dielectric
tests
should
be
limited
to
a
max
-
imum
value
of
13
,
250
volts
RMS
AC
to
allow
an
adequate
safety
margin
for
protection
of
personnel
from
x
-
radiation
.
Site
Preparation
and
Mounting
Installation
shall
be
in
accordance
with
the
National
Electrical
Code
,
ANSI
,
and
NFPA
70
Standards
.
The
contactor
should
be
installed
in
a
clean
dry
heated
place
with
good
ventilation
.
It
should
be
readily
accessible
for
cleaning
and
inspection
and
should
be
carefully
set
up
and
leveled
on
its
supporting
foundation
and
secured
in
place
.
All
adjustments
have
been
made
at
the
factory
before
ship
-
ping
and
generally
no
change
is
required
.
See
that
ail
contact
surfaces
are
clean
and
smooth
,
and
that
current
-
carrying
parts
are
not
damaged
.
AWARNING
High
peak
voltages
can
result
in
er
-
roneous
test
results
and
x
-
radiation
emitted
from
vacuum
bottles
causing
personal
injury
.
h
Do
not
exceed
the
recommended
test
voltages
when
performing
dielectric
tests
.
AWARNING
Accidental
contact
with
dielectric
or
megger
test
equipment
can
cause
shock
,
burn
or
electrocution
.
DC
high
potential
test
voltage
sources
using
half
wave
conversion
will
apply
peak
voltages
3
times
greater
than
the
measured
DC
voltage
.
Do
not
use
DC
high
potential
voltage
sources
which
employ
half
wave
conversion
circuits
.
Dielectric
or
megger
testing
should
only
be
conducted
by
qualified
personnel
.
Refer
to
test
device
instructions
for
safety
instructions
.
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