533-Permit To Work / 748
P
er
m
it to
W
or
k
BOS-PRD-03.900902
4
.
7
.
3 R
eq
u
ire
m
e
n
t
s du
ri
n
g
e
n
tr
y
to t
h
e e
nc
lo
s
e
d
s
p
ac
e
The following
shall
be maintained:
NO ENT
R
Y
WI
LL BE MADE TO AN EN
C
LO
S
ED
SP
A
C
E
W
HEN THE ATMO
SP
HE
R
E
I
N THE
SP
A
C
E
WI
LL NOT
S
U
PP
O
R
T L
I
FE
x
No work
shall
be carried out wearing breathing equipment as routine;
x
Effective ventilation
shall
be maintained continuously whilst personnel are in the space;
x
Regular atmosphere tests are carried out all the time personnel are within the space, and a full
range of tests undertaken prior to re-entry after any break;
x
For any ballast or any tank that contain or has contained only potable water, the volume of air in the
space
shall
be changed at least three times prior to entry. For example, a space with a volume of
100m
3
shall
have 300m
3
of air exchange. With a blower capacity of 100m
3
/hour, the space
shall
be
ventilated for at least three hours;
x
For all tanks that contain and/or have contained hazardous substances and hydrocarbons, proper
ventilation 24 hours prior to cleaning
shall
be performed and ventilation
shall
reach the confined
space bottom;
x
The entry permit
shall
be rendered invalid if ventilation of the space stops, or if any of the conditions
in the check-list change.
4
.
7
.
4 R
e
scu
e te
am
x
The Emergency Rescue plan posted at the work site
shall
be understood by the rescue team;
x
The rescue team
shall
consist of at least two persons who may stand ready at the work site or
nearby depending on the type of intervention or level of risk;
x
Emergency response equipment, (Self Contained Breathing Apparatus (SCBA), resuscitation
equipment, explosion-proof lights, ropes, tripod, etc.)
shall
be fully tested and ready for immediate
use at the entrance to the enclosed space;
x
All assigned rescue team members
shall
have suitable practice in the required techniques to enter
and exit through man-holes and other small spaces. Such practice
shall
be gained during Rescue
from Enclosed Space drills/exercises, or as otherwise deemed suitable by the
M
as
ter
and
shall
include the wearing of SCBA sets and other applicable equipment.
4
.
7
.
5 In
an
e
m
er
g
e
ncy s
it
ua
tio
n
x
Entry into any enclosed space that has not already been proved to be safe for entry
shall
only be
considered when no practical alternative exists and ONLY on permission of the
M
as
ter
onboard
vessels, or the
B
as
e/F
ac
ilit
y
M
ana
g
er
if the enclosed space is situated ashore;
x
Under no circumstances,
shall
entry be permitted without adequate breathing apparatus.
4
.
8 R
e
scu
e
f
ro
m
e
nc
lo
s
e
d
s
p
ac
e
x
The alarm
shall
be raised and the
M
as
ter
shall
be informed as soon as possible with regard to the
situation;
x
The
M
as
ter
shall
inform the
C
o
n
tr
ac
t M
ana
g
er
and
O
p
er
a
tio
ns
M
ana
g
er
;
x
The
M
as
ter
shall
also inform any offshore installations in the vicinity in the event that further medical
assistance and/or evacuation may be required;
x
A
De
ck
O
ff
i
c
er
, preferably the
C
h
ie
f
O
ff
i
c
er
,
shall
attend at the location and co-ordinate the rescue;
x
Assess the overall situation and brief the rescue team to act positively but with regard to other
dangers such as slipping and falling;
x
Brief the rescue team with regard to paying particular attention to the condition of the casualty and
the possibility of spinal injury;
Version 04. Original date: 25/05/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS QHSES Coordinator. Approved by: BOS QHSES Manager. Validated by: BOS Quality Representative.
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