EN 50126-3 PDF

Supersedes CLC/TR English version. Railway applications –. The specification and demonstration of. Reliability, Availability. BS PD CLC/TR Railway applications – The specification and demonstration of Reliability, Availability, Maintainability and Safety (RAMS) – Part 3. Buy CLC/TR Railway Applications – The Specification And Demonstration Of Reliability, Availability, Maintainability And Safety (rams) – Part 3.

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The external features of the shape of the unit in question should make it easy to 05126-3 and not hazardous or capable of injuring the personnel.

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This should be considered to ensure that maintenance costs from different operators or from different rolling stock Main Supplier are compared on the same equal basis.

It is also ne complex task requiring a thorough understanding of the specific railway operation scenarios, railway infrastructure and environment together with a deep knowledge of the rolling stock under consideration and its systems Therefore, the list should only be used as a guide and a Hazard Identification Process carried out with eb full range of competencies involved in the process.

Thank you for interesting in our services. This analysis provides important inputs in the decision making process with regard to product design, development and use. For parts unique to the customer, he may reserve the right, if necessary, for such parts to be restricted for his sole use. Customers who bought this product also bought BS EN A Contract Award or a Notice to proceed concludes the tender p hase.

In particular, for elementary objects, commercial or unified solutions should be used, or parts already in use by the customer 5026-3 classified replacement parts.

Generally, the steady state level is achieved at least after two years of revenue service. The following is a synthesis of the mandatory requirements in 5. The following are recommendations to be followed in order to develop an appropriate and suitable breakdown structure for RAM purposes: Consecutive number used to identify each maintenance task Maintenance Task Description of the preventive maintenance task Spare Parts and special tools Description of the special equipment not provided by the wn or workshop and in any case not easily available on the market and materials necessary consumables 501226-3 spares Frequency Frequency of the maintenance task time or Km Maintenance level Codes of the maintenance levels used by the maintainer Personnel Number of persons necessary at the same time for the maintenance task described Skill Level Code of the Skill level requested for the personnel to carry out the maintenance task Spare Parts Cost Unit cost of materials expressed in EURO Man hours Time required for the maintenance task multiplied by the number of persons necessary Standstill time Standstill time for the rolling stock during the maintenance task Total Qty Total no.


Using the above definition the Customer should specify the Reliability Targets for each one of the Failure Categories in terms of: Every piece of equipment, device and item of furnishing subject to dismantling for replacement, repair or programmed maintenance should not exceed the weight supportable by a single person and should be capable of being manually handled by a single person.

The specification and demonstration of. This task is a specific management task implemented all along the design process from preliminary analysis to service operation.

Also in this case Customer should specify what this cost includes, detailing the items counted. RAMS characteristics for rolling stock i.

This maximum weight may be doubled when the conditions of accessibility make it possible for two persons to work together. Within RAM Programme, each entity involved should define and plan activities, for each phase, that are within their responsibility.

During this phase, functions should be classified using the Failure Categories defined by the Main Supplier and adapted for the specific requirements of the Contract. It must be possible to remove any piece of equipment if needed for recovery from failure or for scheduled maintenance, without having to operate on other pieces of equipment not directly involved with the specific maintenance action.

NOTE If it is not possible to measure time to reach maintenance site or to plan maintenance actions, contractual fixed times can be used. In this case the Customer should specify which items are counted as maintenance cost and the agreed period of time for counting.

Examples of documentation to be requested during tender phase can be taken from design phase documentation see 5. Generally, the scope of the breakdown structure is to set up the borders of a system by listing all the items belonging to that system and, by using an appropriate number of discrete breakdown levels for the system, to draw out the relationships existing between the different items of the rolling stock.


The Main Supplier should indicate the cleaners compatible with the materials and coverings used. Main Supplier responsibility, or alternatively is classified as “nonchargeable”. Also, this section aims to define which phases of the system Life Cycle the RAM Programme deals with and provides more information about: The list should only be considered as an aid for developing a more suitable and coherent list of hazards related to the rolling stock under consideration.

Compatibility between rolling stock and train detection systems.


We need your help! In designing equipment every opportunity should be applied to increase the modularity of the object so as to reduce intervention time, the specialisation 501263 the personnel required and the stocks to be kept on hand.

For defining a checking period, the Customer should consider that usually RAM targets are not achieved in the first period of operation but after a burn-in period, during which a reliability growth monitoring process should have been implemented. You may experience issues viewing this e in Internet Explorer 9, 10 or Guidance on Hazard Identification.

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The scope of each requirement II. The connections existing between the unit and the structure and between the unit and other interconnected units should be accessible, able to be disconnected and reconnected and not subject to corrosion or rust in relation to the environment in which they are located.

TR – 3. Usually a short phase of negotiation between the Customer and the potential Main Supplier is planned, where Contractual Agreements are confirmed. It also gives information about activities and documentation during the life cycle phases supporting detailed specifications and requirements for the rolling stock including its systems and sub-systems.

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Destruel Date of publication: What is RAMS about? Any failure occurring on the Rolling Stock and leading, at least, to one of the following conditions: Examples of Breakdown Structure are given in Annex A.