Confined Space Entry d000395

8/14/2019 Confined Space Entry d000395

1/33

CONFINEDCONFINED

SPACESPACE

ENTRYENTRY

29 CFR 1910.14629 CFR 1910.146


2/33

2

What is a Confined Space?What is a Confined Space?

q Is large enough and so configured that an

employee can enter bodily and perform

work;

q Has limited or restricted means of entry or

exit;

q Is not designed for continuous human

occupancy.

A space that:


3/33

3

Examples of ConfinedExamples of Confined

Spaces:Spaces:

q

Tanksq Manholes

q Boilers

q Furnaces

q Sewers

q Silosq Hoppers

q

Vaultsq Pipes

q Trenches

q Tunnels

q Ducts

q Binsq Pits


4/33

4

Potential Hazards inPotential Hazards in

Confined SpacesConfined Spaces

q

Oxygen Deficiency 23.5%

oxygen concentration

q Combustibles Methane

Hydrogen

Acetylene

Propane

Gasoline fumes

q

Toxic Materials Carbon Monoxide

Hydrogen Sulfide

Welding fumes Corrosives

q Electricity

q Mechanical Hazards

Mixers

Crushers


5/33

5

ENTRYENTRYq The act by which a

person intentionallypasses through an

opening into a permit

required confined space.

q Any part of the body

passing through theopening is considered

entry.


6/33

6

IDLHIDLHIDLHq IMMEDIATELY DANGEROUS TO LIFE

OR HEALTH

q Any condition which poses an immediate

threat to the health of life on an entrant, or;

q Would cause irreversible adverse health

effects, or;

q Would interfere with an individuals ability

to escape unaided from a permit space.


7/33

7

ENTRANTENTRANTq The employee

who willphysically enter

the confined spaceto perform the

work.


8/33

8

ATTENDANTATTENDANT

q The employee who remains outside the

confined space and monitors the

entrant(s); guards the space against

unauthorized entry; warns the

entrants of any unusual conditions;and summons the rescue personnel if

needed.

P i R i d C fi d


9/33

9

PermitPermit--Required ConfinedRequired Confined

SpaceSpace

q A Permit-Required

Confined Space is

confined space that

has one or more ofthe following

characteristics:

q Contains or has the potential to

contain a hazardous atmosphere;

q Contains a material that has the

potential for engulfing an entrant;

q Has an internal configuration such

that an entrant could become

trapped or asphyxiated; or

q Contains any other serious safety or

health hazard.


10/33

10

EntryEntry

SupervisorSupervisorq The employee

responsible for

coordinating the

entry into the

confined space. This

must be a team leader

or foreman.


11/33

11

Responsible PersonResponsible Person

q The person directlyresponsible for the work

being performed in the

confined space. This canbe the Team Leader,

Foreman, journeyman,

or other person qualifiedby training and

experience.


12/33

12

NonNon--PermitPermit

Confined SpaceConfined Space

q A confined space that

does not contain or, with

respect to atmospheric

hazards, have the

potential to contain anyhazard capable of

causing death of serious

physical harm.


13/33

13

Two Options for EnteringTwo Options for Entering

Confined Spaces:Confined Spaces:

qq PermitPermit--requiredrequired

confined spaceconfined space

entryentry

For hazardousFor hazardous

or potentiallyor potentiallyhazardoushazardous

confinedconfined

space workspace work

qq NonNon--permitpermit

confinedconfinedspace entryspace entry

For nonFor non--

hazardoushazardousconfinedconfined

space workspace work


14/33

14

PermitPermit--Required ConfinedRequired Confined

Space Entry ProcedureSpace Entry Procedure

q Isolate the space

q Ventilate the space

q Conduct Tailboard

q Complete permit

q Test the atmosphere

q Enter the space


15/33

15

Isolate the SpaceIsolate the Spacefrom all hazardsfrom all hazardsq Close Valves

Double block & bleed, or

Blank flange

q

Empty the Space Depressurize, vent & drain

q Lockout/Tagout Equipment

Electrical sources Rotating/reciprocating parts

Hazardous materials

q Clean residue from the space


16/33

16

Ventilate the SpaceVentilate the Space

q Use mechanical ventilation

Fans

Air horns

q Ventilate at the rate of at least four

(4) volumes per hour Larger spaces require more ventilation

q Make sure air supply is not

contaminated Ventilation air supply must be from fresh

air uncontaminated with flammables,

toxins, etc.


17/33

17

Conduct a TailboardConduct a Tailboard

BriefingBriefing

q

Entire crew must attend Attendants, entrants, entry supervisor

q Review hazards of entry and work

q Review PPE

q Review procedure for contacting rescue

verify rescue available

q Complete permit


18/33

18

Complete Entry Permit FormComplete Entry Permit Form

q Permit must be correctly and completely

filled out prior to entry.

q Permit must be activated by Entry

Supervisors signature to be valid.

q No entry is allowed without a valid permit.

q Permits are valid for up to 12 hours.

q When work is completed, permit and

tailboard form should be returned to

safety.

q Cancelled permits must be kept on file for

at least one year.


19/33


20/33

20

NOTICE:NOTICE:q

Any time a limit is exceeded, nomatter what the reason, all

personnel shall immediately exit

the space, and no others shall enteruntil atmospheric conditions are

returned to safe levels.

THERE ARE NO EXCEPTIONS TO THIS!THERE ARE NO EXCEPTIONS TO THIS!


21/33

21

Atmosphere Testing ShallAtmosphere Testing Shall

Be Performed:Be Performed:

q

Prior to every entry when the space isvacant;

q After a 10 minute ventilation period (if

ventilation is necessary);

q At least hourly for permit-required

confined spaces.

q More frequently, if conditions or

suspicions warrant.

Al hAl t t th


22/33

22

Always test theAlways test the

air at various levelsair at various levels

to be sure that theto be sure that theentire space is safe.entire space is safe.

Good AirGood Air

Poor AirPoor Air

Deadly AirDeadly Air

Good air nearGood air near

the openingthe opening

does NOT meandoes NOT meanthere is good airthere is good air

at the bottom!at the bottom!

S


23/33

23

Enter the Space andEnter the Space and

Proceed with work:Proceed with work:

q An attendant shall be posted near the entrance

for the duration of the work. He shall be in

constant communication with the entrantswhile the job is in progress.

q All entrants shall sign the sign in log when

entering the space and sign out when exiting.q The attendant shall maintain the permit and

sign in log for the duration of the work.


24/33

24

When the Job is Done:When the Job is Done:

q Remove all personnel, tools, and debrisfrom the space. Sign off the log.

q

Close the space.q Cancel the permit.

q

Review the job with the host employer(hazards, problems, other employers,

etc.)


25/33

25

NonNon--Permit Confined SpacePermit Confined Space

EntryEntry

q

Isolate the spaceq Ventilate the space

q

Evaluate the space Test atmosphere

Assure justification conditions are met

q Conduct tailboard

q Enter the space


26/33

26

Isolate the SpaceIsolate the Space

from all hazardsfrom all hazardsq Close Valves

Double block & bleed, or Blank flange

q Empty the Space

Depressurize, vent & drain

q Lockout/Tagout Equipment

Electrical sources

Rotating/reciprocating parts

Hazardous materials

q Clean residue from the space


27/33

27

q Use mechanical ventilation

Fans

Air horns

q Ventilate at the rate of at least four (4)

volumes per hour

Larger spaces require more ventilation

q Make sure air supply is not contaminated Ventilation air supply must be from fresh air

uncontaminated with flammables, toxins, etc.

Ventilate the SpaceVentilate the Space

Evaluate the SpaceEvaluate the Space


28/33

28

Evaluate the SpaceEvaluate the Spaceq Determine that the space meets all the conditions set

forth in the non-permit justifications

q Conduct atmospheric testing

q Evaluation must be certified by Entry Supervisorssignature

q Determine that the confined space does not:

contain or have the potential to contain a hazardousatmosphere

q Continuous mechanical ventilation not acceptable as good

atmosphere contain a material with the potential for engulfment

Has an internal configuration which could trap or

asphyxiate, or

contain any recognized serious safety or health hazard

E t th S dE t th S d


29/33

29

Enter the Space andEnter the Space and

Proceed with work:Proceed with work:

q If non-permit conditions change during the job,

the space shall be immediately evacuated, and re-

classified as a permit-required confined space; or

conditions shall be returned to non-permit

conditions and again certified as such by the entry

supervisor.

C C fi d S


30/33

30

Contractor Confined SpaceContractor Confined Space

EntryEntryq Contractors must be informed of the hazards within

the spaceq Contractors must follow their own established

confined space entry procedure and use their own

permit formsq Contractors must supply their own attendants

One attendant is acceptable for multiple

companies entrants

q Contractors must supply their own air monitors

q Contractors must review entry after completion of job

Att d t R ibilitiAtt d t R ibiliti


31/33

31

Attendant ResponsibilitiesAttendant Responsibilitiesq To monitor entrants during the job and during

entry & exit to help insure their safety.

The attendant may not abandon his post for any reason

while personnel are in the space unless relieved by anotherqualified attendant.

q To monitor atmospheric conditions in the space

prior to and during entry.

q To control access to the confined space.

q To summon emergency assistance as needed.

q To assess hazards in and around the space, andtake action on the same.

q To keep records of confined space work, such as

air test results, personnel entry/exit, etc.


32/33

32

Entrant ResponsibilitiesEntrant Responsibilities

q To assure that the space has been adequately

ventilated, isolated, emptied, or otherwise made

safe for entry.q To immediately exit a space, without question,

upon word of the attendant, no matter what the

reason.q To follow all safety rules and procedures that

apply to the job.

q To be familiar with the work to be performed andthe procedures that apply to the job.

q To use the appropriate PPE whenever necessary.


33/33

33

Supervisor ResponsibilitiesSupervisor Responsibilitiesq To assure adequate protection is provided to

the entrants by verifying adequate

lockout/tagout and that all hazards are

securely isolated.

q To support the attendants authority in

controlling access to a confined space.

q To verify that all personnel have exited prior

to closing the space.

q To assure that all personnel involved are

aware of the hazards associated with the

space.

q To assure that rescue services are available

prior to entry.

Date post:	30-May-2018
Category:	Documents
Upload:	alamsawood
View:	223 times
Download:	0 times

Confined Space Entry d000395

Documents