BARTEC CATALOGUE PDF

ISO Catalogue. New Building 7, No. Carrera 13, No. Parman, Kav.

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ISO Catalogue. New Building 7, No. Carrera 13, No. Parman, Kav. Cesta 9 avgusta 59 Zagorje ob Savi Slovenia Ph. Combustion is a chemical reaction that entails oxidation of a fuel by an oxidizing agent which is in general the oxygen in the air , with development of heat and electromagnetic radiation, often also including luminous radiation.

More strictly speaking, combustion is a type of exothermic oxidoreduction in as much as one compound oxidizes whilst another one is reduced in the case of hydrocarbons the carbon oxidizes and the oxygen is reduced with a release of energy and formation of new compounds, mainly carbon dioxide and water.

The flash point can be, for example, a source of heat or a spark. The flash point is the activation energy that is required by the molecules of reagents to start the reaction and must be supplied from the exterior energy released by the reaction that enables the reaction to sustain itself without the addition of external energy. In order to be able to accelerate combustion, turbulence can be used to increase the mixing between fuel and the oxidizing agent, thus accelerating combustion.

Explosion is very rapid combustion that occurs at atmospheric pressure and the pressure must be confined in a volume in order for the explosion to occur. There are also substances that under certain conditions may explode spontaneously without energy input, however, this is beyond the scope of the publication that examines only the prevention and protection of explosions triggered by electrical equipment.

A mixture having a concentration greater than the Upper Explosive Limit UEL is not an explosive atmosphere but can easily become such, therefore, for classification purposes, you should consider it as such explosive atmosphere. The electrical equipment that is intended, therefore, must comply with specific and clearly defined regulations and be certified as suitable for use by special Notified Bodies. Bartec Feam Catalogue 04 I I www. Areas at risk from explosions are divided into zones on the basis of the frequency and duration of the presence of explosive atmospheres.

Choosing the best mode of protection and determining the hazardous areas inside plants is neither easy or immediate. Thorough familiarity with current standards is in fact required.

We have therefore decided to use these introductory pages to provide a short guide to dealing with the problem and finding other sources of information. Hazardous areas are classified in zones according to the frequency and duration of an explosive atmosphere consisting of combustible gas or dusts in the form of a cloud.

In Europe and at the international level the following applies to Group II: GASES DUST Zone 0 A place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas, vapour or mist is present continuously or for long periods or frequently Zone 20 A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is present continuously, or for long periods or frequently.

Zone 1 A place in which an explosive atmosphere consisting of a mixture with air or flammable substances in the form of gas, vapour or mist is likely to occur in normal operation occasionally. Zone 21 A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally.

Zone 22 A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only. Zone 2 Class I, Division 1 Zone 20 A place in which an explosive atmosphere consisting of a mixture with air of the form of gas, vapour or mist is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is likely to occur in normal operation occasionally. A place in which an explosive atmosphere in the form of a cloud of combustible dust in air is not likely to occur in normal operation but, if it does occur, will persist for a short period only.

The safety requirements for electrical equipment and systems can be tailored according to the nature of hazardous substances into the atmosphere where the application is expected.

AARTI SANGRAH PDF

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April Software Update R For the new release of the Software version R April - Software Update R We have been preparing for this for some time and expect minimal disruption to our day-to-day operations as a result of the changes. Keeping our team safe and healthy is our highest priority and by rigorously following advice we aim to minimise the effects of Coronavirus on our team, and by implication on our customers and partners.

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