Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically...

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Protection Concepts Protection Concepts Protection Concepts Protection Concepts Ex ’e’ Ex ’e’ Ex ’e’ Ex ’e’ Ex ’n’ Ex ’n’ Ex ’n’ Ex ’n’ Johan van Zyl

Transcript of Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically...

Page 1: Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically sealed EExnC Ex mc Encapsulated EExnC Ex mc PROTECTION CONCEPTS. There are four basic

Protection Concepts

Protection Concepts

Protection Concepts

Protection Concepts

Ex ’e’

Ex ’e’

Ex ’e’

Ex ’e’

Ex ’n’

Ex ’n’

Ex ’n’

Ex ’n’

Joha

n va

n Z

yl

Page 2: Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically sealed EExnC Ex mc Encapsulated EExnC Ex mc PROTECTION CONCEPTS. There are four basic

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Page 3: Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically sealed EExnC Ex mc Encapsulated EExnC Ex mc PROTECTION CONCEPTS. There are four basic

Pro

tect

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Co

nce

pt

Zo

ne(

s)M

eth

od

olo

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insi

c S

afet

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1,2

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ited

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n

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ith

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Non sparking

EExnA

Ex ec

Restricted breathing

EEx nR

Simplified pressurization

EEx nP

Ex pz

Energy limiting apparatus

EEx nL

Ex ic

Sealed or encapsulated

device

EEx nC

Ex dc

Enclosed break

EEx nC

Ex mc

Herm

etically sealed

EExnC

Ex mc

Encapsulated

EExnC

Ex mc

PR

OT

EC

TIO

N C

ON

CE

PT

S

Page 4: Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically sealed EExnC Ex mc Encapsulated EExnC Ex mc PROTECTION CONCEPTS. There are four basic

Th

ere

are

four

ba

sic

me

tho

ds

uti

lise

d i

n o

rde

r to

av

oid

un

-co

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oll

ed

ig

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By

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mb

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the

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nce

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nt

in o

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iev

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.

PR

OT

EC

TIO

N C

ON

CE

PT

S

Page 5: Protection Concepts Ex ’e’ Ex ’n’...EEx nC Ex dc Enclosed break EEx nC Ex mc Hermetically sealed EExnC Ex mc Encapsulated EExnC Ex mc PROTECTION CONCEPTS. There are four basic