15
October 2010
AUTOMATIKPRODUKTER
AUTOMATIKPRODUKTER
ATEX – Duct Smoke Detector
As a general rule, the following hierarchy of protective measures shall be
observed:
1.
Development of a potentially explosive atmosphere must be prevented.
–
Primary explosion protection
–
Sum of measures that prevent development and propagation of a poten-
tially explosive atmosphere.
2.
Ignition of a potentially explosive atmosphere must be prevented.
–
Secondary explosion protection
–
Sum of measures that prevent potential ignition sources from becoming
effective
3.
The potential impacts of an explosion must be minimised.
–
Tertiary explosion protection
–
Sum of measures that limit the impacts of an explosion to an innocuous
level.
A follow-up hazard analysis should in particular address the following points:
–
Determination of explosion risks to which employees might be exposed
–
Selection of appropriate measures for achieving the desired level of protection
–
Safe layout, operation and servicing of work equipment, warning devices and
protective equipment
For connected areas!
Areas that are or could be connected via openings to areas in which poten-
tially explosive atmospheres may occur must also be taken into considera-
tion for assessment of the explosion risks.
