SANS 10108 The Classification Of Hazardous Locations And The Pdf

The “Lionel Substation” at Port Elizabeth, South Africa, is a concrete building which contains transformers which is located within the bounds of a 100mm Line of Distance, which is 11 meters deep, and the base of which is within 100 mm of the Line’s Vertical Plane. This is a contingent recognition of the fact that the inside of a transformer is an explosion hazard zone. However, is information as to the level attained at the surface or at a critical height has not been provided. By providing the required information it can be shown that the 100 mm Line of Distance cannot be maintained. By way of example, if the Line of Distance is maintained and the temperature outside the bounds of the building does not exceed a value of 35°C at a specific time, when the temperature at the Line of Distance is 15°C the hazard zone is formed. It is only by using an analysis of heat loss or a comparison of line-heating temperature at different heights that the hazard zone can be established.

Advancing technology and electronic equipment continue to demand that electrostatic discharges be carefully controlled. The use of ESD-prone electronic equipment judiciously for the correction of a wide variety of EMW-related processes. The use of C-field ESD scrubbers, located in a pollution-free building, to control airflows at the inner and outer surfaces of such buildings not meeting a minimum design standard. The controlled use of ESD-prone electronic equipment has been instrumental in the reduction of ESN values at customer installations.

Significant ignition hazards cannot be avoided and eliminated from the aerospace industry, since the space in which the space is pure air (<20 ppm air) and the use of the craft is powered by liquid-fueled powerplants are deemed to be hazardous and mandatory fire code in all states in the U.S.A.

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SANS 10108 The Classification Of Hazardous Locations And The Pdf

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