Ex d IIB T4 nima degani?

Ex = explosion protected. d = flameproof enclosure (IEC 60079-1). IIB = Gas Group IIB (e.g. ethylene). T4 = Temperature Class T4 (max surface temp 135°C). This equipment is suitable for Zone 1 and Zone 2 hazardous areas.

Ex himoyasining asosiy turlari qanday?

Common types: d = flameproof, e = increased safety, i = intrinsic safety (ia/ib/ic), p = pressurized, n = non-sparking, m = encapsulation, o = oil immersion, q = powder filling, t = protection by enclosure (dust).

Gaz guruhlari I, IIA, IIB, IIC nima?

Group I = Mining (methane). Group IIA = Propane, acetone, etc. Group IIB = Ethylene, hydrogen sulfide. Group IIC = Hydrogen, acetylene, carbon disulfide. IIC is the most stringent — equipment rated IIC can be used in IIA and IIB.

T1 dan T6 gacha harorat sinflari nima?

Temperature classes define the max surface temperature: T1=450°C, T2=300°C, T3=200°C, T4=135°C, T5=100°C, T6=85°C. The class must be lower than the auto-ignition temperature of the gas present.

Uskunani himoya darajasi (EPL) nima?

EPL indicates the level of protection: Ga/Da = very high (Zone 0/20), Gb/Db = high (Zone 1/21), Gc/Dc = enhanced (Zone 2/22). 'G' is for gas, 'D' is for dust. EPL was introduced in IEC 60079-0 Edition 6.

Muhandislik uchun bepul vosita

Ex belgisi dekoderi

Himoya turini, gaz guruhini, harorat sinfini, EPL va zona muvofiqligini aniqlash uchun istalgan IEC 60079 / ATEX Ex belgilash qatorini kiriting.

IEC 60079ATEXZone 0/1/2

Dekodlangan Belgi

Himoya Turlari

Code	Method	IEC Standard	Typical Zone
d	Portlashga bardoshli korpus	IEC 60079-1	Zone 1, 2
e	Oshirilgan xavfsizlik	IEC 60079-7	Zone 1, 2
ia	Ichki xavfsizlik (a darajasi)	IEC 60079-11	Zone 0, 1, 2
ib	Ichki xavfsizlik (b darajasi)	IEC 60079-11	Zone 1, 2
ic	Ichki xavfsizlik (c darajasi)	IEC 60079-11	Zone 2
p/px/py/pz	Bosim ostidagi korpus	IEC 60079-2	Zone 1, 2
m/ma/mb	Encapsulation	IEC 60079-18	Zone 0, 1, 2
nA/nC/nR	Uchqun chiqarmaydigan / n-turi	IEC 60079-15	Zone 2
o	Oil immersion	IEC 60079-6	Zone 1, 2
q	Powder filling	IEC 60079-5	Zone 1, 2
t/ta/tb/tc	Korpus orqali himoya (chang)	IEC 60079-31	Zone 20/21/22

Harorat sinflari

Class	Maks. sirt harorati (°C)	Typical Gases
T1	450	Vodorod, metan, propan
T2	300	Etanol, butan, aseton
T3	200	Benzin, vodorod sulfid, dizel
T4	135	Asetaldegid, dietil efir
T5	100	—
T6	85	Uglerod disulfid

Ex Belgisini Dekodlash | IEC 60079 | ATEX Portlashdan Himoya

Published by Nikolai Shelkovenko on Fevral 15, 2026 Fevral 15, 2026

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