Toshiba VK-6M32A Installation Operation & Maintenance page 14

lvlay.
31, 2012
9:lTAlVl
No
1530
P.
1t
INSTALLATION
Page
11
SERVICE
CONDITTOilS
EWAEtlilG-l
Do
nqt ini1pll rhis aquipm.m
in
areas where unurual serviae
condition$
erist.
Using thiE €quipm€nt ln othsr than uaual
aervlce condffod$
can
relult in
squipm€nt
fallura,
Toshibs VK & HVK $eri€s Circuit Brsak€rt
ara
intended for use in u6ual servioe conditions as
dellndd by ANSI. The temperatule of the
air
(arfibient air
temp6raturs) surrounding
the
Ewitchgear should
be
between
the limits
of
-3OoC l.22oF)
snd
+4OoC (104oF),
The
altitude
of the equipffient instsllation
should
nor exceed
3300
ft
{100o m},
IUOTE; Temperature,
ehitutle
ot
othar
conditions outside of the usual
limitt
may raquire derating
or
other special
equiPment.
Contact
ToEhiba
lntsrnational CorPoration for
additional lntormstion.
RATIIVG
Prior
to
ln$tallation:
The maximum
fault curredt capaoily
ol
tho
powsr
sy3t6m
at
thB point
of
installstion
should
be
verified. This valug must not exceed
ths
symmetrical interruptino eapability ot the
circult bteaker. Fig. 18
illuetrEtes
a
typical
circuit breaket nameplatg and ratings.
Do
not
exceed
the tati
ga
$pecified on
fi6
circult
braak€r nameplate
ot
aystem acces5orie5. undefrated equipment can
fail
durlng oparallon caudng flre,
erploaion,
sgvgrg
inju
. d6rth,
ind
proP.dy
damagc,
To
calculat€
.th€
required
Symmetrical
lnterrupti g
Capability. usatheformula in Note
4
and
5 of
Table
1, All
system
accss9origs
Buch as
surge supprasaors, lightning
arlestols,
etc,
should be checked
to varify thsir ratingi
capacity.
Flg.
18
Typical Ciacuit Br3aker
Nsmsplac