539-Permit To Work / 748
P
er
m
it to
W
or
k
BOS-PRD-03.900902
stored energy that could cause injury to the personnel. Each time LO-TO procedure is applied, notification in
the
BOS-FRM-03.0056 - Permit to work – Log out Tag out Log book
by the
T
ask Su
pervi
s
or
shall
be done.
P
re
cau
tio
ns &
A
wa
re
n
e
ss
x
If the machine or equipment is still running, it
shall
be stopped or shut down using the normal
stopping mechanism and be isolated from the energy source;
x
Lock the energy isolating device. This is called “
Lo
ck
O
u
t
”;
x
Attach a relevant sign (tag) to the locked-out energy isolating device as well as to any remote control
device. This is called “
T
a
g O
u
t
”;
x
Tags used onboard
shall
be a standard type showing applicable and clear information such as: Do
Not Operate/Do Not Use/Do Not Start/Do Not Open. Tags
shall
be immediately available on the
bridge and in the engine control room;
x
Lock-Out, Tag-Out and re-energising equipment (electrical current or fluid flow) activities
shall
be
documented in the deck or engine log-books as applicable.
Before permitting work to begin, the PTW
T
ask Su
pervi
s
or
or competent person
shall
:
x
Inform the
M
as
ter
,
C
hie
f
E
n
gi
n
eer
or
B
as
e M
ana
ger
, as applicable, when maintenance or servicing
is required on any machinery or equipment that
shall
be shut down and Locked/Tagged-Out to
undertake the maintenance or repair;
x
Identify the source, type and amount of energy used by the machine or equipment;
x
Identify all hazards posed by this energy and the means to control them;
x
Carry out the actual Lock-Out/Tag-Out process;
x
Ensure any stored or residual energy is controlled, dissipated or restrained using methods such as
grounding, bleeding off, purging, blocking, repositioning etc.
Complete
BOS-FRM-03.0056 - Permit to work – Log out Tag out Log book
.
Stored and residual energy sources may take many forms including but not limited to:
-
Pressurised systems;
-
Springs;
-
Capacitors;
-
Elevated machine members;
-
Rotating fly-wheels;
-
Hydraulic systems;
-
Air, gas and steam systems.
x
Ensure the machine or equipment is fully isolated from the energy source.
When the machine or equipment is locked and tagged out, work can commence:
x
Check that no personnel are near-by then check isolation by using the normal starting
buttons/switches to make sure that the machine is “dead” from this control and cannot be started;
To preve
n
t
an
y i
nad
verte
n
t
s
t
a
rt
u
p o
n
c
o
m
pletio
n
o
f
the
ma
i
n
te
nanc
e or
s
ervi
c
i
n
g it i
s
vit
a
lly
i
m
port
an
t to e
nsu
re th
a
t the oper
a
ti
n
g
c
o
n
trol/
bu
tto
n
/
sw
it
c
h
(
i
nc
l
ud
i
n
g
an
y re
m
ote oper
a
ti
n
g
c
o
n
trol
s)
a
re ret
u
r
n
e
d
to the
“s
top/o
ff
/
n
e
u
tr
a
l
”
po
s
itio
n
af
ter veri
f
yi
n
g i
s
ol
a
tio
n
o
f
the
mac
hi
n
e or
e
qu
ip
m
e
n
t.
x
Complete the task as assigned.
When the work is complete:
x
Verify that the machinery or equipment controls (including any on any remote operating devices) are
in the stop/off/neutral position
x
Remove the Lock-Out and Tag-Out devices, check once more that all personnel are clear from the
area and restart the machine or equipment.
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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539