Generators hazardous areas

The survey should include all units of the institution. Some laboratories will find units that are using chemicals and generating hazardous waste without the awareness of any hazard. This situation is particularly likely in academic institutions, where chemicals are used routinely in many areas, such as the biology, geology, electrical engineering, art, and physics departments, and in hospitals where workers may have little or no training in chemistry. 

The installation of generators in hazardous areas is focused on special applications. The specific advantages of pressurization as demonstrated for motors apply in full for generators. Two examples shall be given ... 

Electric field transducers can also be used. They generate a capacitive field in a hazard area. Any grounded object in the field can he detected. Operators working in that area are grounded and can he sensed by this method to stop the machine before its activation. These are different guards and safety devices that are normally used to avoid mechanical hazards. 

Use only outdoors or in a well-ventilated area. Avoid breathing dust/fume/gas/mist/vapours/spray. IF INHALED Remove to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/physician. Specific treatment (see. .. on this label). .. reference to supplemental first aid instruction if immediate specific measures are required. Store locked up. Store container tightly closed in well-ventilated place - if product is as volatile as to generate hazardous atmosphere. ... 

This usually means a physical barrier, and may also include distance. The ideal I is to place any circuits, motors, pumps, generators, batteries, etc., in another area away from the directly hazardous area. Anything that sparks, arcs or heats up should be isolated in some way from the hazardous atmosphere. 

Electric motors, outlets and any other spark generating sources in hazardous areas... 

Gasoline-powered tools. Gasoline-powered tools include mowers, trimmers, and generators. Hazards include exhaust fumes, the handling and transport of gasoline, and injury. If a tool is used in a closed area, proper ventilation or the use of respirators is required. Fire extinguishers must be kept in the area. 

It can create and manage appropriate databases for generating hazard-risk maps and vulnerability assessments of locations that can be used in disaster preparedness. This information can also be used to determine the desirable level of protection of a location or population. In disasters such as a chemical explosion, GIS can identify the devastated area and direct the relief providers to the available resources nearby. 

Offshore production platforms and drilling rigs are generally arranged into Safe and Hazardous Areas. The two areas should be separated from one another and may have physical barriers between them. The Safe Area will include accommodations, the control room, UPS (uninterruptible power supply), emergency power generation equipment, and nonhazardous platform utilities such as water and compressed air. The Hazardous Area contains the flare, derricks, gas compression, hydrocarbon separation, the wellhead, and drilling facilities. 

Pneumatic Controllers The pneumatic controller is an automatic controller that uses pneumatic pressure as a power source and generates a single pneumatic output pressure. The pneumatic controller is used in single-loop control applications and is often installed on the control valve or on an adjacent pipestand or wall in close proximity to the control valve and/or measurement transmitter. Pneumatic controllers are used in areas where it would be hazardous to use electronic equipment, in locations without power, in situations where maintenance personnel are more familiar with pneumatic controllers, or in applications where replacement with modern electronic controls has not been justified. 

Mechanically generated hot surfaces represent an ignition hazard if, irrespective of the MIT and the MIE, the. surface temperature is 1100°C or higher and the hot. surface area by itself is large enough (see Fig. 26-35). Higher surface temperatures and larger surfaces have a better incendivity lower temperatures and smaller surfaces have a poorer incendivity. 

Plant or processes or systems of work which minimize generation of, or suppress or contain, the hazardous dust, fume, biological agent etc. and limit the area of contamination in the event of spills and leaks. 

Apart from considerations given to corrosion resistance and suitability for hazardous (classified) areas, the selection of electric motors for oil field applications is the same as the selection of electric motors for other industrial applications. One exception may be the selection of motors for areas where electric power is self-generated. Frequency and voltage variations may occasionally occur at such locations. For such locations, consideration should be given to specifying motors which are tolerant to at least 10% voltage variations and 5% frequency variations. 

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