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This document:

—ÌýÌýÌý specifies the general safety requirements for secondary steelmaking machinery and equipment (SSME) as defined in 3.1 to treat liquid steel;

—ÌýÌýÌý deals with all significant hazards, hazardous situations and events pertinent to SSME, when used as intended and under conditions foreseen by the manufacturer, but also includes foreseeable misuse, faults and malfunctions;

—ÌýÌýÌý specifies the requirements to ensure the safety of persons which are to be met during the design, pre-assembly, transport, sites assembly, commissioning, operation, maintenance, decommissioning and dismantling/ disassembling of the equipment;

—ÌýÌýÌý assumes that SSMEs are operated and maintained by adequately trained and competent personnel. Manual intervention for setting, adjustment and maintenance is accepted as part of the normal use of the equipment.

This document applies to SSME involved in the treatment process of liquid steel under vacuum or atmospheric pressure and covers:

—ÌýÌýÌý LF, ladle furnace,

—ÌýÌýÌý VD, vacuum degassing,

—ÌýÌýÌý VOD, vacuum oxygen decarburization,

—ÌýÌýÌý RH (OB), Ruhrstahl Heraeus (oxygen blowing),

—ÌýÌýÌý process related interfaces/interactions (e.g. according to design, controls) to:

a)ÌýÌýÌý process media,

b)ÌýÌýÌý primary and secondary gas cleaning plant,

c)ÌýÌýÌý material handling systems,

d)ÌýÌýÌý transfer cars for steel ladle, and

e)ÌýÌýÌý crane and ladle.

±·°¿°Õ·¡Ìý1ÌýÌý Due to the variety of secondary metallurgical processes, there are other variants (e.g. VODC – vacuum oxygen decarburization converter, CAS, CAS - OB) in addition to the main processes discussed in this document. Most countries require that applicable safety requirements, specific to this equipment be implemented.

This document does not cover safety requirements for the following equipment:

—ÌýÌýÌý cranes;

—ÌýÌýÌý transfer cars, e.g. ladle transfer cars, tank cars, maintenance cars;

—ÌýÌýÌý fork lift trucks or other transporting equipment;

—ÌýÌýÌý ladles;

—ÌýÌýÌý equipment for relining and preheating in the relining area;

—ÌýÌýÌý burners according to Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý13577‑2 (the burner lances for RH vessels are covered by Ïã¸ÛÁùºÏ²Ê¿ª½±Ìý13577‑2 except for maximum main burner ignition time, see 5.2.26.2);

—ÌýÌýÌý cleaning and treatment of dust and fume exhaust systems;

—ÌýÌýÌý process media (e.g. air separation, boiler house, steam generation system);

—ÌýÌýÌý material handling systems.

NOTEÌý2ÌýÌý Significant hazards and hazardous situations due to transporting/positioning of heavy components, e.g. by cranes (e.g. ladles, vessels, covers) are considered in this document (see 5.2.3).

This document is not applicable to SSMEs and associated equipment manufactured before the date of its publication.