EM - 35 Permit to Work

5/21/2018 EM - 35 Permit to Work

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ORISSA POWER GENERATION CORPORATION LTD.

IB THERMAL POWER STATION, BANHARPALI

STANDARD OPERATING PROCEDUREPERMIT TO WORK

Document No:EM 4 / 35

Filed At: All Departments

The purpose of the SOP Permit To Work is to train and guide operating personnel

for optimum performance of the system.

RESPONSII!I"#

Team Leader (All Departments is responsi!le for implementation of this SOP so

as to ensure safe and efficient operation of the system.

PERMI" "O $OR% PRO&ED'RE

()* PO!I

"t is the policy of "# Thermal Po$er Station ("TPS to esta!lish a uniform

Permit to Work Procedure to protect people from in%ury due to electrical

shock& mechanical energy& pipeline product flo$& fire& to'icity and related

potential haards. The policy is also directed at pre)enting inad)ertent start*

up of e+uipment not ready for operation.

SOP Permit To Work ,


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+)* IN"ROD'&"ION

This procedure pro)ides "TPS people $ith instructions for starting& initiation

and remo)ing a Permit to Work Order and its associated paper $ork.

3)* DEFINI"IONS

-., S,i-t in &,ar.e Person ha)ing immediate charge and control of the

po$er plant. /e is responsi!le for ensuring that all procedures are

follo$ed prior to& during and on su!se+uent release of the Permit toWork Order.

-.0 S,i-t En.ineer Operations 1ngineer +ualified in the specific area

co)ered !y the Permit to Work Order.

-.- eri-ication &,ec0 A check must !e made !y the person re+uesting

the Permit to Work and the Shift 1ngineer to ensure all tags and locks

are hung in accordance $ith the Permit to Work Procedure.

-.2 Dan.er "a. A pre*printed tag stating 3Danger*Do 4ot Operate5 is to

!e used $hen plant e+uipment has !een issued a Permit to Work Order

!y the Shift 1ngineer& prohi!iting energy sources from !eing placed in

an operational mode.

-.6 !oc0 The lock used !y the Shift in 7harge must !e accompanied !y a

Danger Tag.

SOP Permit To Work 0


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-.8 Maintenance En.ineer i.e. electrical& instrument& mechanical

maintenance engineers in)ol)ed in repairing& testing or performing

other $ork on e+uipment.

-.9 Maintenance 1roup A group or cre$ of more than one craft

$orking on same e+uipment or system ha)ing the presence of

haardous energy.

-.: Sa-e Position The position in $hich an isolating de)ice has !een

placed to pre)ent the release of haardous energy.

-.; 2aardous ener. Any chemical& electrical& stored mechanical&

thermal& kinetic or potential su!stance that could harm people or

e+uipment.

4)* RESPONSII!I"IES

2., The Shift in 7harge has immediate charge and control of the

e+uipment re+uiring a Permit to Work& $ill ensure that the Lock& Tag

and Try procedure is follo$ed& authorie Permit to Work and $ill

ensure that each step of the procedure is follo$ed.

2.,., ",e loc0 ill 6e remo7ed onl a-ter all maintenance/.roups

ha)e signed off the Permit to Work.

SOP Permit To Work -


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2.,.0 The Shift in 7harge


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2.-., "n a maintenance group situation& one person $ill !e designated

!y the group mem!ers to assume Permit to Work

responsi!ilities for the group.

2.2 All people are responsi!le for honouring all tags and locks.

>nauthoried remo)al of a danger tag or lock could result in the

serious in%ury& death or e+uipment damage and may !e cause for

immediate employment termination.

5)* "#PI&A! SI"'A"IONS RE'IRIN1 PRMI" "O $OR%PRO&ED'RE

6., Performing maintenance or ser)ices on or around any machine $here

personnel in%ury or e+uipment damage could result from

6.,., >ne'pected e+uipment starts.

6.,.0 ?elease of stored energy.

6.,.- ?emo)ing a guard or other safety de)ice.

6.,.2 Work re+uiring people to !e situated $here any part of the !ody

could !e caught !y mo)ing machinery.

6.,.6 7losing )al)es $hen the flo$ of air& steam& $ater& flamma!le

li+uids or other chemicals present a haard.



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6.,.8 Any situation $here a Permit to Work $ould pre)ent conditions

$hich could cause in%ury& pollution or other undesira!le results.

;)* PERMI" "O $OR% PRO&ED'RE

NO"E: ",ere are si< steps to -ollo in controllin. ,aardous ener..

,. Preparation for shutdo$n 0. 1+uipment shutdo$n& -. 1+uipment

isolation& 2. Application of Permit to Work& 6. 7ontrol of stored 1nergy&

8. 1+uipment isolation 3T?@5 )erification.

;)( Preparation For S,utdon =step > (?

1+uipment and


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8.,.6 The presence of any secondary (!ack up po$er sources.

8.,.8 The e'istence of any stored energy that must !e !locked and drained.

8.0 E@uipment s,utdon =step > +?

=ake certain e+uipment is a)aila!le for shutdo$n.

8.0., Berify that the e+uipment can !e remo)ed from ser)ice consideringoperational loss or impacting plant a)aila!ility for a specific time

period.

8.0.0 4otify all necessary people that the e+uipment or system is !eing

taken out of ser)ice& i.e.& maintenance engineers.

8.0.- Berify that normal operating controls can !e used to shutdo$n the

e+uipment.

8.0.2 Take steps to drain& remo)e solids& )acuum out& $ash do$n or cool off

the e+uipment or system !efore or after shut do$n.

;)3 E@uipment isolation =step > 3?

8.-., Place all energy isolating de)ices in a safe position.



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8.-.0 1nsure all possi!le alternati)e energy sources are correctly isolated.

Ne7eropen isolators under load and Ne7erpull fuses under load as an

isolating de)ice.

The Shift 1ngineer 4?

Note ( "TPS uses a Permit to Work procedure in $hich !oth locks and tags

are hung on the isolating de)ice. There may !e times $hen tags can !e used

separately $ithout locks& ho$e)er& a lock must al$ays !e used $here)er

possi!le and $ill al$ays !e accompanied !y a tag.

8.2., Shift in 7harge


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8.2.2 Authoriation for all Permit to Work Orders $ill !e gi)en !y the Shift

in 7harge after ensuring that the conditions in Section 8.0 1+uipment

Shutdo$n ha)e !een adhered to.

8.2.6 7omplete 3DAN1ERBDO NO" OPERA"E5 tags for all isolating

de)ices associated $ith the Permit to Work Order and fill in !oth the

Permit to Work Order num!er and lock num!er.

8.2.8 Place all isolating de)ices in the safe position as noted on the Permit

to Work Order and hang Permit to Work lock and 3DAN1ERBDONO" OPERA"E5 tags.

8.2.9 Shift in 7harge 5?

NO"E: An o- t,e -olloin. precautions =indi7iduall or in

com6ination? ma 6e necessar to .uard a.ainst residual ener. le-t in

t,e e@uipment a-ter it ,as 6een isolated)

8.6., =ake sure all parts ha)e stopped mo)ing.

8.6.0 "nstall ground $ires and


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8.6.2 ?elease the tension on springs or !lock the mo)ement of spring dri)en

parts.

8.6.6 #lock or !race parts that could fall !y gra)ity or from hydraulic or

pneumatic pressure loss.

8.6.8 Drain process piping systems and close )al)es to pre)ent the flo$ of

haardous materials.

8.6.9 "f a line must !e !locked& utilie )al)es& use a line !lank& remo)e pipe

section or misalign a section of pipe.

8.6.: Dissipate e'treme heat& e'plosi)e energy or $ear proper personal

protecti)e e+uipment.

8.6.; "f stored energy can re*accumulate& monitor it to make sure it stays

!elo$ haardous le)els. Al$ays tag lo$ point !leeds if they need to

remain open to pre)ent re*accumulation of energy. The tag $ill ser)e

as a reminder that the )al)e is open $hen putting e+uipment !ack in

ser)ice.

8.8 E@uipment Isolation 8"R#C 7eri-ication =step > ;?

Note: Due to t,e lar.e num6er o- similar pieces o- e@uipment sstem

and isolatin. de7ices 6ein. used in close pro


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start t,e e@uipment a-ter Permit to $or0 to insure t,at Permit to $or0

,as 6een ac,ie7ed)

8.8., After all isolating de)ices ha)e !een placed in the safe position and

tags


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)* REMOIN1 PERMI" "O $OR%

:., =aintenance 1ngineers $ho finish their assigned task !efore the

entire task is complete $ill notify the Shift 1ngineer or this fact !y

signing the Permit to Work Order in the Permit to Work 3released5

column.

:.0 The Shift 1ngineer $ill ensure that the entire task is completeC all

maintenance people accepting the Permit to Work ha)e signed the

Permit to Work 3release5 column of the Permit to Work Order. TheShift 1ngineer $ill then thoroughly check the e+uipment


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:.8 ?eturn all tags and locks to the control room from $hich they $ere

issued.

:.9 The Shift 1ngineer $ill complete the Permit to Work Order form.

G)* SPE&IA! SI"'A"IONS

;., "emporar P"$ Remo7al procedure =-or testin. and

positionin.?: There may !e occasions $hen to complete repairs&

ad%ustments or perform other $ork on a locked out e+uipment item& aTemporary Tag ?emo)al procedure is necessary.

;.,., The Permit to Work is the responsi!ility of the Shift 1ngineer

during any Temporary PTW ?emo)al procedure.

;.,.0 Any


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;.0 Emer.enc loc0/Permit to $or0 remo7almay !e authoried !y a

person accepting responsi!ility for a person $hom has signed

3accepted5 on the Permit to Work Order !ut is off plant site.

;.- 7ontractor personnel $orking $ith "TPS people are su!%ect to Permit

to Work procedure re+uirements. 7ontractor super)isors $ill !e

!riefed as to the procedure and they& in turn& must !rief their people.

;.-.- An "TPS person must ne)er assume that the contractor fullyunderstands the Permit to Work procedure.

;.-.2 7ontractor person $ill !e issued one copy of the Permit to

Work o! Slip duly signed !y the "TPS maintenance engineer

and contractor. After completion of the %o!& the same %o! slip

$ill !e returned to the maintenance engineer.

;.-.6 =aintenance


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,E., Annual inspection $ill consist of an e)aluation of Permit to Work

Orders $ritten for that year. Discrepancies $ill !e noted.

,E.0 All Permit to Work Orders& $hich ha)e remained open for a period

e'ceeding three months $ill !e re)ie$ed and any damaged or defaced

tags replaced.

,E.- "TPS Team =em!ers $ill !e randomly selected for testing their

kno$ledge of the Permit to Work Procedure.

,E.2 Selected Team =em!ers $ill !e gi)en a mock situation and a Permit

to Work Order to !e filled out.

,E.6 "n the e)ent that Procedure discrepancies are disco)ered& appropriate

people $ill !e gi)en proper training (training class. "f gross

discrepancies continue after training& additional training $ill !e gi)en

and a 3failure to follo$ and learn procedure5 may !e reason for

disciplinary action.

(()* ENFOR&EMEN"

,,., 1nforcement is di)ided into t$o areas& administrati)e and physical

harm.

,,.,., Administrati)e pertains to any Team =em!ers not adhering to

the application of Permit to Work Procedure.

SOP Permit To Work ,6


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,,.,.0 Physical harm pertains to an indi)idualFs failure to follo$

procedure& $hich is the cause of physical harm to another

indi)idual.

,,.,.- 1ach incident $ill !e considered indi)idually and may in)ol)e

an independent in)estigati)e group to pro)ide determination of

fault.

,,.,.2 All safety occurrences $ill !e discussed at the ne't Safety

7ommittee meeting and appropriate actions taken.

(+)* 1ENERA! RE'IREMEN"S

,0., Locks must !e of common design& su!stantial tamper*proof and

operated !y a single key only.

,0.0 3DAN1ERBDO NO" OPERA"EC "A1S

,0.0., Tags $ill !e a minimum sie of - inches !y 6 inches.

,0.0.0 Tags $ill !e constructed in a manner that pro)ided easy

attachment to locks& normally $ith a grommet hole larger than

the lock shackle.

,0.0.- A space $ill !e pro)ided on the tag for the custodianFs

signature& date and reason for tag and the Permit to Work Order.

SOP Permit To Work ,8


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(3)* APPENDI&ES

,-., Permit to Work =aster Log Sheet

,-.0 Permit to Work orm

,-.- "solation ?e+uired 7ontinuation Sheet

,-.2 Permit to Work o! Slip

,-.6 Periodic Permit to Work


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APPENDI&ES

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ISO!A"ION RE'IRED &ON"IN'A"ION S2EE"

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of their responsi!ilities

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" ha)e re)ie$ed the a!o)e inspection and " certify that this inspection has !een

performed.

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Documents

EM - 35 Permit to Work