This European Standard provides parameters based on values for hand/arm and approach speeds and the methodology to determine the minimum distances from specific sensing or actuating devices of protective equipment to a danger zone. These specific devices are: Trip devices as defined in 3.23.5 of EN 292-1:1991 (specifically electro-sensitive protective equipment, including those used additionally to initiate operation, and pressure sensitive mats). Two-hand control devices as defined in 3.23.4 of EN 292-1:1991 and covered by EN 574. NOTE For the purpose of this standard hold-to-run controls, which are designed to be actuated with one hand, are not considered to be protective equipment. This standard gives guidance based on the assumption that the correct device has been chosen either by reference to the appropriate Type-C standard or by carrying out a risk assessment. The calculated distances, when implemented, will provide sufficient protection for persons against the risks caused by approaching a danger zone which generate any of the following mechanical hazards, such as: Crushing, shearing, cutting or severing, entanglement, drawing-in or trapping, friction or abrasion, stabbing or puncture and impact. Protection against the risks from mechanical hazards arising from the ejection of solid or fluid materials and non-mechanical hazards such as toxic emissions, electricity, radiation etc. are not covered by this standard. The distances are derived from data that take into account population groups likely to be found in European countries and are consequently applicable to those groups. NOTE 1 If this standard is to be used for non-industrial purposes then the designer should take into account that this data is based on industrial experience. NOTE 2 Until specific data is available for approach speeds for children, this standard uses adult speeds and lower detection factors, where relevant, to calculate the distances that could be within the reach of children. This standard does not apply to protective equipment which is intended to be moved, without tools, nearer to the danger zone than the calculated distance, e. g. pendant two-hand control devices. The minimum distances derived from this standard do not apply to protective equipment used to detect the presence of persons within an area already protected by a guard or electro-sensitive protective equipment.
Số hiệu tiêu chuẩn
DIN EN 999
Tên tiêu chuẩn
Safety of machinery - The positioning of protective equipment in respect of approach speeds of parts of the human body; German version EN 999:1998+A1:2008
Ngày phát hành
2008-10-00
Tiêu chuẩn tương đương
EN 999+A1 (2008-07), IDT
Từ khóa
Accident prevention * Approach * Arms * Body regions * Control devices * Danger area * Danger zones * Dangerous spots * Definitions * Dimensions * Distances * Electrical engineering * Ergonomics * Formulae * Hands (anatomy) * Layout * Machine guards * Machines * Mathematical calculations * Mechanical engineering * Minimum spacing * Occupational safety * Optoelectronics * Protection devices * Protection of persons * Range of protection * Safety * Safety devices * Safety distances * Safety engineering * Safety measures * Safety of machinery * Spaced * Velocity * Speed * Engines