BS EN ISO 12100-1 PDF

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BS EN ISO Safety of machinery – Basic concepts, general principles for design – Part 1: Basic terminology, methodology. [Note that EN ISO and EN have both been superseded by EN ISO – Ed, 31 December ]. EN ISO IEC – 1. Electrical. Equipment. BS EN Safety of machinery. Rules for drafting and. Presentation of safety standards. BS ISO

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EN ISO Part 2 of the standard Technical principles generally contains practical advice that can be implemented when designing machinery.

NOTE In some countries the use of specific language s is covered by legal requirements. General requirements for the design and construction of fixed and movable guards deals specifically with the guarding design, but the subject is also covered to a lesser extent in EN ISO Clause 5.

When carrying out a risk assessment, the risk from the most likely severity of the harm that is likely to occur from each identified hazard shall be considered, but the highest foreseeable severity shall also be taken into account, even if the probability of such an occurrence is not high.

In order to prevent hazardous machine behaviour and to achieve safety functions, the design of control systems shall comply with the principles and methods presented in this subclause 6.

Such tasks shall be identified and considered in the risk assessment as parts of the use of the machine see 5. In order to offer more detailed information on the type of hazards, there are two additional columns that correspond to the origin of the hazard and its potential consequences.

While automatic feeding and removal devices have much to offer in preventing accidents to machine operators, they can create danger when any faults are being corrected.

BS EN ISO 12100-1:2003+A1:2009

For dated references, only the edition cited applies. Examples of hazards Origina cavitation phenomena; exhausting system; gas leaking at high speed; manufacturing process stamping, cutting, etc.

Therefore, the designer should also identify and document any other hazard, hazardous situation or hazardous event existing in the machine. This may be achieved by use of embedded software in a non-reprogrammable memory [for example, micro-controller, application-specific integrated circuit ASIC ].

This publication does not purport to include all the necessary provisions of a contract. Hazards other than emissions that are described by measurable parameters can be dealt with in a similar manner.

Indeed, the ISO website states that both parts are to be revised, though no timescale is given. EXAMPLE A fixed guard preventing access to a zone where a mechanical hazard is present used to reduce noise levels and collect toxic emissions. Markings, signs and written warnings shall be readily understandable and unambiguous, especially as regards the part of the function s of the machine to which they are related.

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On machinery intended for lifting persons, controls for lifting and lowering and, if appropriate, for moving the carrier shall generally be located in the carrier. After switching on the power supply, or when the machine has been stopped by the tripping function of the sensitive protective equipment, the machine cycle shall be initiated only by voluntary actuation of a start control.

Electrical hazards For the design of the electrical equipment of machines, IEC gives general provisions about disconnection and switching of electrical circuits and for protection against electric shock. Standards or other specifications used to select protective measures referred to in f above should be referenced. The designer shall identify hazards taking into account the following. This is because protective measures inherent to the characteristics of the machine are likely to remain effective, whereas experience has shown that even well-designed safeguarding can fail or be violated and information for use may not be followed.

BS EN ISO _百度文库

Task identification should also take into account, but not be limited to, the following task categories: Whenever possible, control devices and control positions shall be located so that the operator is able to observe the working area or hazard zone. The designer’s attention is particularly drawn to following ergonomic aspects of machine design.

Each part states that the other is ‘indispensable for the application of this document. Factors to be 12100-11 into account include? Practical guidance and examples of methods ‘ is intended to kso designers in complying with EN ISO by providing additional guidance on the selection of appropriate protective measures for achieving safety.

Information printed directly on the machine should be permanent and remain legible throughout the expected life of the machine. The risk assessment shall be documented according to Clause 7. While the foregoing discusses the body of Part 1 of the standard, there are also some additional information included.

Basic concepts, general principles for design. NOTE 1 Accident data can assist in establishing the probability and severity of injury associated with the use of a particular type of machinery with a particular type of protective measure.

Annex A provides a schematic representation of a machine, though this is likely to be of limited use to most readers, and there are 14 pages of a trilingual English, German and French index of specific terms and expressions used in the standard, which is unlikely to be of use to most machine designers.

Safety of Machinery: EN ISO and EN ISO

The selector may be replaced by another selection means which restricts the use of certain functions of the machinery to certain categories of operators for example, access codes for certain numerically controlled functions.

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Automatic protective measures triggered by such devices that take operation of the machinery out of the control of the operator for example, automatic stop of hazardous isp should be preceded or accompanied by a warning signal to enable the operator to take appropriate action see 6.

Oso Amber document status indicator indicates that some caution is needed when using this document – it is either: Automatic feeding and removal devices with their own control systems gs the control system of the associated machine shall be interconnected after thorough study of how all safety functions are performed in all the control and operation modes of the entire equipment.

Disturbances which can be generated by those conditions include insulation failures and temporary or permanent wn in the function of control system components. NOTE A fixed guard can be hinged to assist in its opening.

Information for use Where risks remain despite inherently safe design measures, safeguarding and the adoption of complementary protective measures, the residual risks shall be identified in the information for use.

You may find similar items within these categories by selecting from the hs below:. Break-up during operation 6. This goes into considerable detail, such as in Sub-clause 4. An emergency situation can arise during normal operation of the machine for example, due to human 1210-01, or as a result of external influencesor as a consequence of a malfunction or failure of any part of the machine. 121001 documents are listed but, as has been shown above, some of these have since been with withdrawn and superseded.

When the machinery contains various elements that can be operated independently, the control system shall be designed to prevent risks arising out of a lack of coordination for example, collision prevention system. NOTE In some cases, it will be necessary to take additional measures to limit the negative effects of such a failure.

Safety of machinery: EN ISO 12100-1 and EN ISO 12100-2

Openings shall, whenever possible, open towards a safe position. The main task of technical committees is to prepare International Standards.

NOTE 1 Annex B gives, in separate tables, examples of hazards, hazardous situations and hazardous events, in order to clarify these concepts and assist the designer in the process of hazard identification.