The use of tools and equipment common steel, in environments and explosion risk areas, may cause sparks and ignite the combustion processes and combustion.
The only way to avoid this risk is to eliminate all flammable and/or explosive substances during normal maintenance operations.
In practice this is very difficult to accomplish and otherwise responsible for plant safety and insist on using tools and EXPLOSION-PROOF tools.
Using these tools makes it possible to guarantee the minimum requirements and basic to avoid this type of risks and operate safely within the plant and in the vicinity of the equipment.
Explosion-proof tools are not subject to the approval of the legislation as they are defined by their own nature "no own source of ignition" i.e. not trigger sparks independently during use.
All explosion-proof tools are approved for use in the following areas:
Ex 0, 1 and 2 (flammable gases or vapours)-Zone 20, 21 and 22 (combustible dust)-M1 and M2 for mines
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