Alstom FKG1X - Page 273

Equi
pme
nt end o
f
life
Instructions on the handling of used SF
6
gas
and
decomp
osition
produc
ts
G81
-
-0
01EN03
4/4
02--2011
© ALSTOM 2010. All rights reserved. Informat
ion contained in
this document is indicative only. No
representati
on or
warrant
y is
given or should
be
relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is
provided without liabili
ty and
is subject to
change without notice. Reproduction, use or disclosure to
third parties, without express writt
en authority, is
strictly prohibited.
 GRID
Recapi
tulation of
importa
nt
instruct
ions
Reminder
Pure,
non-
-contaminated
SF
6
gas is non--poisonous. Electrical discharges
and
faul
t-
-switc
hin
g
arc
s
wil
l
give rise
to
dif
fere
nt
gra
des
of
poi
son
ous
decomp
osition pr
oducts. In
small amo
unts
gaseo
us deco
mposition
produc
ts
produc
e
-
-
within seconds and before any
poison
ous effects can
take place
-
-
wa
rn
in
g
sym
pto
ms,
su
ch
as
an
un
ple
as
an
t
pi
erc
in
g
od
or
,
na
sa
l,
mo
uth
an
d
eye irritations, which enable working personnel to withdraw to safety. Solid
decomposition products (powdery residues from switching) can cause skin
irritations. SF
6
is about five times heavier than air, and in the absence of
turbulence, results in the gas collecting just above ground level and causing
suffocation through a deficiency of oxygen.
Important
instructions
The table below recapitulates the important instructions to follow at the time
of handling of used SF
6
gas and deco
mpositio
n products
:
N
o
.
I
n
s
t
r
u
c
t
i
o
n
1
As
so
on
as
an
un
pl
ea
sa
nt,
pie
rci
ng
od
or
fro
m
de
co
mp
os
iti
on
pr
od
uc
ts
becomes perceptible leave the substation room without delay. enter
the
roo
m
onl
y
after thoroug
h
ven
tila
tion or
whe
n
wea
rin
g
sui
tabl
e
oxygen breathing masks (with filtering or fresh air device).
2
Af
te
r
di
st
ur
ba
nc
es
,
en
te
r
th
e
su
bs
ta
ti
on
ro
om
on
ly
af
te
r
ha
vi
ng
th
or
ou
gh
ly
ai
re
d
th
e
ro
om
or
wh
en
we
ar
in
g
in
de
pe
nd
en
t
of
ambient--air operating oxygen breathing masks, or alternatively, after
verifying by measurement that the ambient air contains at least 17%
vo
lu
me
of
ox
yg
en
,
es
pe
ci
al
ly
if
,
on
e
ha
s
to
re
ck
on
w
it
h
th
e
concentration of SF
6
in hazardous amounts.
3
En
ter
ro
oms
lo
ca
ted
be
lo
w
,
an
d
co
nn
ec
ted
wi
th
the
su
bst
ati
on-
-roo
ms
after
thor
oug
h
ven
tila
tion
onl
y
,
or
whe
n
wea
rin
g
oxy
gen
bre
athi
ng
masks w
hich
operate
indepe
ndent
of the
ambien
t-
-air, or
alternativ
ely
,
after having verified by measurement that the ambient air contains at
least 17% volume of oxygen.
4
En
su
re
th
at
th
e
ro
om
ve
nt
il
at
io
n
op
er
at
es
sa
ti
sf
ac
to
ri
ly
,
wh
il
st
ma
in
ten
an
ce
wo
rk
is
be
in
g
pe
rfo
rme
d
on
SF
6
switchg
ear
(discha
rging
and filling of gas, opening and cleaning of equipment).
5
W
h
e
n
w
o
r
k
in
g
o
n
o
p
e
n
e
d
S
F
6
swi
tchg
ear
prot
ect
ski
n
aga
ins
t
con
tact
wi
th
ga
s
an
d
av
oi
d
sw
al
low
in
g
or
inh
ali
ng
of
ga
s.
En
su
re
bo
dy
,
clo
thi
ng
and work--bench cleanliness. Wear special work--overalls and after
completion of work discard latter.
6
W
as
h
sk
in
wh
ic
h
co
me
s
in
co
nt
ac
t
wi
th
po
wd
er
de
po
si
ts
wi
th
pl
en
ty
of
water
. Before work-
-breaks and after work wash face,
neck, arms
and
hands thoroughly with soap and plenty of water.
7
Do
no
t
sti
r-
-up
po
wd
er
de
po
si
ts
re
su
lti
ng
fro
m
ar
c-
-swi
tch
in
g.
Re
mov
e
sti
ck
y
po
wd
er
wi
th
dr
y
ra
gs
.
Us
e
su
ita
bl
e
va
cu
um
cle
an
er
wi
th
pa
pe
r-
-filt
er
to
re
mov
e
loo
se
po
wd
er
.
Di
sca
rd
us
ed
ite
ms
an
d
filter-
-bags in
such a
manner that powder deposit does not
spread
.
Before discarding neutralize used items.
8
Avoi
d
eating,
drinkin
g an
d
storing
eatable
s i
n ro
oms
with
opened
SF
6
switchgear which contains powder deposits.