Road Access for Maintenance & Fire Fighting for Plant Layout Levels

This article is about Standard measurements of Road Access for Maintenance & Fire Fighting, Roads and Access Safety Considerations for Plant Layout Levels.

Road Access for Maintenance & Fire Fighting for Plant Layout Levels

Access for Maintenance

1. Process units shall be arranged, either singly or in groups, within a block that can be surrounded by plant roads for free movement of maintenance and safety equipment.
2. Equipment shall be so arranged that maintenance functions can be performed from these plant
3. roads or access roads within the units.
4. Provisions shall be made so that plant roads are not blocked for extended periods by maintenance.
5. Adequate alternative routes must be available to provide access to areas not undergoing maintenance.
6. Pipe racks should provide crane access for maintenance.

Access for Fire Fighting

1. Access from two directions will be provided between integrated layout process units.
2. Access to a unit for fire control operations shall not depend upon crossing an adjacent operating unit.
3. Process units should be provided with fire breaks of at least 6 m approximately every 60m by means of access ways or through equipment layout considerations.
4. Main accessways should be at least 6 meter wide and can act as a fire break. Main accessways for fire fighting should not be located under pipeways and should not pass through adjacent units. They should be provided through process unit areas to allow fire fighting from two directions with 30m hose lengths.
5. Secondary accessways should be 3.6 meter wide for access by fire fighters dragging hose or 6m wide with 4.5m height clearance to permit access by mobile fire fighting equipment.
6. Secondary accessways may pass under pipe ways or through adjacent process units or equipment, provided clearance is adequate. Alternate secondary accessways are necessary to prevent entrapment of fire fighters if flammable vapors are present, if a fire flares out of control, or if the wind changes.

Read Main Article about Safety Considerations for Plant Layout Levels.