TEÇHÝZAT KORUMA SEVÝYELERÝ (EPLs-EQUIPMENT PROTECTION LEVELs) ve ATEX KATEGORÝLERÝ
ATEX
Kategori
Zone
Patlayýcý Ortam
EPL
Type of protection
Code
According to
1
0
Gaz
“Ga”
Intrinsically safe
“ia”
IEC 60079-11
Encapsulation
“ma”
IEC 60079-18
Two independent types each meeting EPL “Gb”of protection
IEC 60079-26
Protection of equipment and transmission systems using optical radiation
“op” is
IEC 60079-28
Special protection
20
Toz
“Da”
Encapsulation
“ma”
IEC 60079-18
Protection by enclosure
“ta”
IEC 60079-31
Intrinsically safe
“ia” or “iaD”
IEC 60079-11 or IEC 61241-11
Special protection
“sa”
IEC 60079-33
2
1
Gaz
“Gb”
Flameproof enclosures “d” IEC 60079-1
“d”
IEC 60079-1
Increased safety
“e”
IEC 60079-7
Intrinsically safe
“ib”
IEC 60079-11
Encapsulation
“m” “mb”
IEC 60079
Oil immersion
“o”
IEC 60079-6
Pressurized enclosures
“p”,“px”,“py”,“pxb”,“pyb”
IEC 60079-2
Powder filling
“q”
IEC 60079-5
Fieldbus intrinsically safe concept (FISCO)
IEC 60079-27
Protection of equipment and transmission systems using optical radiation
“op is”,“op sh”,“op pr”
IEC 60079-28
21
Toz
“Db”
Encapsulation
“mb”
IEC 60079-18
Protection by enclosure
“tb” or “tD”
IEC 60079-31IEC 61241-1
Pressurized enclosures
“pD”
IEC 61241-4
Intrinsically safe
“ib” or “ibD”
IEC 60079-11 or IEC 61241-11
Special protection
“sb”
IEC 60079-33
3
2
Gaz
“Gc”
Special protection
“sb”
IEC 60079-33
Encapsulation
“mc”
IEC 60079-18
Non-sparking
“n” or “nA”
IEC 60079-15
Restricted breathing
“nR”
IEC 60079-15
Energy limitation
“nL”
IEC 60079-15
Sparking equipment
“nC”
IEC 60079-15
Pressurized enclosures
“pz” or “pzc”
IEC 60079-2
Protection of equipment and transmission systems using opticalradiation
“op is”“op sh”“op “pr”
IEC 60079-28
Special protection
“sc”
IEC 60079-33
22
Toz
“Dc”
Encapsulation
“mc”
IEC 60079-18
Protection by enclosure
“tc” or “tD”
IEC 60079-31 IEC 61241-1
Pressurized enclosures
“pD”
IEC 61241-4
Intrinsically safe
“ic”
IEC 60079-11
Special protection
“sc”
IEC 60079-33
