Electrical energy plays an important role in your daily life whether
you are involved in studying, designing or implementing installations.
This energy can become a danger to daily life. This can occur when
energy is used in any industry or warehouse which stores, processes
and manufactures products such as : hydrocarbons, gases, paints,
varnishes, glues, resins, perfumes, cleaning products, rubber, textiles,
plastics, powders, grains, dusts from various origins... There is
thus a high explosion risk with serious consequences for personnel,
equipment and the environment. We talk about an atmosphere with
an explosion hazard.
Three elements are required :
1- Oxygen in the air.
2- An inflammable substance, mixed with air. This substance
can be :
• gas (methane, acetylene),
• liquid (petrol, solvent),
• solid (sulphur, wood dust, sugar dust, grains dust...).
3- An ignition source :
• with sufficient energy, an electrical arc or a spark,
• and/or a rise in temperature.Three elements are required :
1- Oxygen in the air.
2- An inflammable substance, mixed with air. This substance
can be :
• gas (methane, acetylene),
• liquid (petrol, solvent),
• solid (sulphur, wood dust, sugar dust, grains dust...).
3- An ignition source :
• with sufficient energy, an electrical arc or a spark,
• and/or a rise in temperature.
