AS 3584.1 pdf download

AS 3584.1 pdf download.Diesel engine systems for underground coal mines
1.1  Scope
This document specifies safety requirements for fire-protected diesel engine systems (FpDES) that are designed for use in designated safe areas in underground coal mines. It applies to diesel engine systems with heavy duty applications. NOTE  Whether a particular application is heavy duty will need to be determined by the end user and the manufacturer, using risk management processes. Safety requirements include the following: (a) The control of surface temperature, to avert ignition of coal dust that could settle on a hot surface or fluid fires. (b) Containment or elimination of flames and sparks that could initiate a fire. FpDES are not explosion protected and are not designed to operate in flammable or explosive atmospheres. This document nominates the means by which identified hazards may be managed. It is intended for designers, manufacturers, users, regulatory authorities, testing authorities and associated interests.
1.3  Terms and definitions
For the purposes of this document, the following terms and definitions apply. 1.3.1 catalytic converter equipment that modifies the constituents of an exhaust gas stream by means of a catalyst 1.3.2 designated safe area place in which there is a minimum likelihood of an explosive atmosphere being present, which would require special precautions while a diesel engine is operated, serviced or maintained Note 1 to entry: It cannot be assumed that areas of a mine that are not classified as being explosion risk zones are designated safe areas. Note 2 to entry: Legislation, regulations or requirements by the relevant statutory authority may define a designated safe area in greater detail. 1.3.3 engine safety shutdown system protection system that automatically causes an engine to stop in the event of an unsafe condition occurring 1.3.4 emergency safety shutdown system system fitted to stop the diesel engine in the event of the failure of the other systems to stop the engine 1.3.5 explosion risk zone place where during the normal course of events there is a possibility of an accumulation of flammable gas or dust or explosive gas or dust that could create a hazard for the operation, servicing or maintenance of a diesel engine system Note 1 to entry: Legislation for underground coal mines may define certain parts of the mine as explosion risk zones and may use the term “hazardous area” to describe an explosion risk zone. 1.3.6 fire-protected diesel engine system FpDES diesel engine that is designed, manufactured and maintained so it will not propagate or generate flame or sparks, which could initiate a fire Note 1 to entry: The diesel engine system includes— (a) inlet systems; (b) exhaust systems; (c) cooling systems; (d) starting systems; (e) fuel systems; (f) shutdown and protection systems; (g) associated electrical items, including alternators, batteries and wiring; and (h) other ancillary equipment attached to or driven by the engine, or are associated with the engine operation or engine control. Note 2 to entry: Equipment driven from the output side of the engine flywheel is excluded. 1.3.7 fire protection design features that will prevent the diesel engine system from igniting flammable material or substances, excluding flammable gas Note 1 to entry: Fire-protected diesel engine systems do not provide explosion protection (refer to AS 3584.2). 1.3.8 high idle speed maximum governed speed of an engine with minimal output power from the engine and the ancillary equipment 1.3.9 intermediate speed speed used in the non‑road steady cycle (NRSC) test cycle 1.3.10 low idle speed minimum governed speed of an engine with minimal output power from the engine and the ancillary equipment