What is GB in ATEX?
Ex d indicates flameproof Type of Protection, IIC is the Gas Group, T6 the Temperature Class and Gb the Equipment Protection level. Ex t indicates a dust tight enclosure, IIIC is the Dust Type, Temperature Class is 85deg C and Equipment Protection Level Db for Zone 21.
Is IIC better than IIB?
Any equipment which is marked as IIC can be used in atmospheres that contain Group IIB and Group IIA gasses. Conversely equipment marked IIA cannot be used in IIB or IIC explosive environments….Gas Groups.
| GAS GROUPS | TYPICAL GAS EXAMPLE |
|---|---|
| IIB | Coke Oven Gasses, Ethylene |
| IIC | Acetylene, Carbon Disulphide, Hydrogen |
What is Zone 2 rated equipment?
Zone 2: Where ignitable concentrations are not likely to exist under normal operating conditions.
What is a Zone 2 hazardous area?
Zone 2: An area in which an explosive gas atmosphere is not likely to occur in normal operation and, if it occurs, will only exist for a short time.
What is ex DB?
Ex : Explosion protected. db : Flameproof ‘d’ with level of protection ‘b’. eb : Increased safe ‘e’ with level of protection ‘b’.
What is an Atex 2G eexd IIB T4?
An ATEX approved electrical product is marked with the following code: II 2G Eexd IIB T4 From the breakdown of the code below it can be seen that the product is flameproof,suitable for use in zone 1 surface applications where gas group B gases may be present and the surface temperature of the product under fault conditions will not exceed 135 ºC.
What is ATEX Zone 1 2 21 22?
What is ATEX Zone1, 2, 21 and 22? What is ATEX? When equipment is rated as ATEX, what does this mean? ATEX is the name commonly given to the two European directives for controlling explosive atmospheres.
What is an Atex code?
What is an ATEX coding? The ATEX code is an alphanumeric string that denotes the certification achieved by the product along with the environment and conditions it is suitable for. The code can be broken down into a prefix, for example: CE0518 Ex II 2 G and suffix, for example: Ex d IIC T6 Gb.
What is an Atex approved electrical product?
An ATEX approved electrical product is marked with the following code: From the breakdown of the code below it can be seen that the product is flameproof,suitable for use in zone 1 surface applications where gas group B gases may be present and the surface temperature of the product under fault conditions will not exceed 135 ºC.