73.100.01 - Mining equipment in general
ICS 73.100.01 Details
Mining equipment in general
Bergbauausrustung im allgemeinen
Materiel pour exploitation miniere en general
Rudarska oprema na splošno
General Information
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This European standard EN 50628 specifies the safety requirements for the erection of electrical installations.
This standard is supplementary to other relevant harmonized standards, for example HD 60364 series and EN 61936-series as regards electrical installation requirements.
This part also refers to EN 60079-0 and its associated standards for the construction, testing and marking requirements of suitable electrical equipment.
EN 60079-14 standard gives the specific requirements for design, selection and erection of electrical installations in explosive atmospheres.
NOTE 1 EN 60079-14 standard can apply to electrical installations in mines where explosive gas atmospheres other than firedamp can be formed and to electrical installations in the surface installation of mines.
NOTE 2 For next edition of EN6079-14 installation requirements for mining equipment might be implemented.
This standard applies to
a) Electrical installation in underground workings of mines.
b) Electrical installations and parts of electrical installation above ground, which are directly connected with the underground workings in functional and safety relating matters because of being part of the underground working process.
These are in particular
• Safety and monitoring devices relating to the power distribution of the underground workings,
• Telecommunication installation of hoisting and inclined haulage plants,
• Intrinsically safe electrical installations of above ground installation being part of underground workings,
• Remote control systems if they have to fulfil increased requirements relating to functional safety,
• Electrical installation and electrical equipment of ventilation systems and shaft casings above ground being endangered by methane of the underground ventilation,
• Methane drainage systems.
c) Electrical installation in underground workings outside mining if it is demanded of the competent national authorities.
National regulations of the mining authority shall remain unaffected.
This standard applies to installations at all voltages mentioned in Clause 10.
Requirements above both columns are requirements of all underground workings.
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This European Standard specifies methods for explosion prevention and protection in mining by outlining the basic concepts and methodology for the design and construction of equipment, protective systems and components.
This European Standard applies to Group I equipment, protective systems and components intended for use in underground parts of mines and those parts of their surface installations at risk from firedamp and/or flammable dust.
NOTE Detailed information on specific equipment, protective systems and components is contained in the relevant individual standards. Safety-relevant data regarding flammable materials and explosive atmospheres are required for the design and construction of the explosion protection measures.
This European Standard specifies methods for the identification and assessment of hazardous situations that may lead to explosions and describes the design and construction measures appropriate for the required safety. This is achieved by
- risk assessment;
- risk reduction.
The safety of equipment, protective systems, and components can be achieved by eliminating hazards and/or limiting the risk, i.e.
a) by appropriate design (without using safeguarding);
b) by safeguarding;
c) by information for use;
d) by any other preventive measures.
Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in clause 6 of this standard, measures according to c) against explosions are dealt with in clause 7 of this standard. Mea¬sures in accordance with d) are not described in this European Standard. They are dealt with in EN ISO 12100:2010, clause 6.
The preventive and protective measures described in this European Standard will not provide the required level of safety unless the equipment, protective systems and components are operated in line with their intended use and are installed and maintained according to the relevant codes of practice or requirements.
This standard is applicable to any equipment, protective systems and components intended to be used in potentially explosive atmospheres. These atmospheres can arise from flammable materials processed, used or released by the equipment, protective systems and components or from materials in the vicinity of the equipment, protective systems and components and/or from the materials of construction of the equipment, protective systems and components.
As shot firing can release potentially explosive atmospheres, this standard is also applicable to the equipment used for shot firing, apart from the explosives and detonators.
This standard is applicable to equipment, protective systems and components at all stages of use.
This standard is not applicable to:
- medical devices intended for use in a medical environment;
- equipment, protective systems and components where the explosion hazard results exclusively from the presence of explosives or unstable chemical substances;
- equipment, protective systems and components where the explosion can result from reaction of substances with oxidising agents other than atmospheric oxygen or by other hazardous reactions or conditions other than atmospheric conditions;
- equipment intended for use in domestic and non-commercial environments where explosive atmospheres may only rarely be created and solely as a result of the accidental leakage of fuel gas;
- personal protective equipment covered by Directive 89/686/EEC; the design and construction of systems containing desired, controlled combustion processes, unless they can act as ignition sources in potentially explosive atmospheres;
- mines where firedamp and/or flammable dust are not naturally present and surface installations such as coal preparation plants, power plants, coke oven plants etc. in which an explosive atmosphere can be present, but which are not part of a coal mine. These are covered by EN 1127-1:2011.
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This European Standard gives general guidelines for explosion prevention and protection in mining by outlining the basic concepts and methodology for the design and construction of equipment, protective systems and components.
This European Standard applies to Group I equipment, protective systems and components intended for use in underground parts of mines and those parts of their surface installations at risk from firedamp and/or flammable dust.
NOTE Detailed information on specific equipment, protective systems and components is contained in the relevant individual standards. Safety-relevant data regarding flammable materials and explosive atmospheres are required for the design and construction of the explosion protection measures
This European Standard specifies methods for the identification and assessment of hazardous situations that may lead to explosions and describes the design and construction measures appropriate for the required safety. This is achieved by
- hazard identification;
- risk assessment;
- elimination or minimization of risk;
- information for use.
The safety of equipment, protective systems, and components can be achieved, as described in EN 292-2:1991, by removal of hazards and/or limiting the risk, i.e.
a) by risk reduction by design;
b) by safeguarding;
c) by information for use;
d) by additional precautions.
NOTE Risk reduction by design in accordance with clause 3 of EN 292-2:1991 should not be confused with the concept of "design" as described in 6.5 of this standard.
Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in clause 6 of this standard, measures according to c) against explosions are dealt with in clause 7 of this standard. Mea¬sures in accordance with d) are not described in this European Standard. They are dealt with in clause 6 of EN 292 2:1991.
The preventive and protective measures described in this European Standard will not provide the required level of
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This European Standard specifies the explosion protection requirements for the construction and marking of equipment that may be an individual item or form an assembly. This includes machinery and components placed on the market by a single supplier for use in mines susceptible to explosive atmospheres of firedamp and/or combustible dust (at atmospheric conditions as defined in EN 1127-2).
NOTE 1 This European Standard deals only with the ignition protection of mining machinery and manufacturers will need to take account of all other relevant EU Directives relating to the construction of machines e.g. the consolidated Machinery Directive 98/37/EC. Additionally, manufacturers will need to take account of any national legislation in the country where they intend to market their equipment.
NOTE 2 Where the flammable gas in the atmosphere is not predominantly methane, reference will need to be made to 4.1 in either EN 60079-0:2004 or EN 13463-1:2001.
NOTE 3 The definition of ‘equipment’ is contained in EN 13463-1. The definition of ‘assembly’ can be found the ATEX guidelines, published by the European Commission.
Equipment complying with the relevant clauses of this European Standard is considered to meet the requirements for equipment of Group I - Category M2.
This European Standard also deals with the prevention of ignitions of explosive atmospheres caused by burning (or smouldering) of combustible material such as fabric fibres, plastic O-rings, rubber seals, lubricating oils or greases used in the construction of the equipment if such items could be an ignition source. For example, the mechanical failure of rotating shaft bearings can result in frictional heating that ignites its plastic cage, plastic seal or lubricating grease. See also 5.2.4 of EN 13463-1:2001.
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This European Standard gives general guidelines for explosion prevention and protection in mining by outlining the basic concepts and methodology for the design and construction of equipment, protective systems and components.
This European Standard applies to Group I equipment, protective systems and components intended for use in underground parts of mines and those parts of their surface installations at risk from firedamp and/or flammable dust.
NOTE Detailed information on specific equipment, protective systems and components is contained in the relevant individual standards. Safety-relevant data regarding flammable materials and explosive atmospheres are required for the design and construction of the explosion protection measures
This European Standard specifies methods for the identification and assessment of hazardous situations that may lead to explosions and describes the design and construction measures appropriate for the required safety. This is achieved by
- hazard identification;
- risk assessment;
- elimination or minimization of risk;
- information for use.
The safety of equipment, protective systems, and components can be achieved, as described in EN 292-2:1991, by removal of hazards and/or limiting the risk, i.e.
a) by risk reduction by design;
b) by safeguarding;
c) by information for use;
d) by additional precautions.
NOTE Risk reduction by design in accordance with clause 3 of EN 292-2:1991 should not be confused with the concept of "design" as described in 6.5 of this standard.
Measures in accordance with a) (prevention) and b) (protection) against explosions are dealt with in clause 6 of this standard, measures according to c) against explosions are dealt with in clause 7 of this standard. Mea-sures in accordance with d) are not described in this European Standard. They are dealt with in clause 6 of EN 292-2:1991.
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