Diagnose faults in Tramway components, equipment and assets

URN: UKTTWE07
Business Sectors (Suites): Tramway Engineering
Developed by: UK Tram
Approved on: 30 Mar 2021

Overview

​This standard is about diagnosing faults on Tramway components, equipment and assets.  You will be able to use fault finding methods and techniques to locate and diagnose faults that involve one or more of the following Tramway areas:

Electrification

Signalling

Telecommunications

Track

Trackside environment

The type and range of problems and faults could be complex and involve the interaction between two or more components, equipment and assets.  Fault diagnosis may also involve one or more of the following technologies:

Electrical

Hydraulic

Mechanical

Pneumatic

Electronic

Thermal

Fault diagnosis could include continual and intermittent faults and be affected by factors such as environmental, ageing, human error and inherent design problems.  From the evidence gained, you will be expected to identify the fault and probable cause.  Where fault diagnosis is inconclusive you will be able to conduct further investigation, seek assistance or follow the organisations escalation procedures as required. 

Your acquired underpinning knowledge will provide an understanding of your work and an informed approach when applying fault diagnosis procedures within an integrated system. You will understand the various fault diagnosis methods and techniques in use, and their application. You will know and understand how to apply and interpret information obtained from the diagnostic aids and equipment, in depth to provide a basis for carrying out the activities and identifying faults or conditions that are outside the required specification. You will know and understand about the interaction of the technologies and other associated integrated technologies and will have sufficient knowledge and understanding to carry out effective fault diagnosis of the Integrated system.

You will understand the safety precautions required when undertaking fault diagnosis activities, especially when isolating the equipment and for taking the necessary safeguards to protect yourself and other people in the workplace.

This standard is for those who work in the Tramway engineering environment at supervisor or technician level.


Performance criteria

You must be able to:

P1        confirm you are wearing the correct PPE (Personal Protective Equipment) and following the relevant health and safety procedures

P2        interpret and analyse the received information on the symptoms and problems associated with the Tramway, components, equipment and assets

P3        identify the fault finding activities and diagnostic tests to be carried out in line with organisational procedures

P4        prepare diagnostic tools and equipment in line with organisational procedures

P5        take action to prevent damage or interference with other components, equipment, assets or the wider environment during fault finding activities

P6        communicate the proposed activities to the relevant stakeholders, as required

P7        select, use and apply diagnostic techniques, tools and aids to locate faults

P8        complete the fault diagnosis within the agreed time and inform the relevant stakeholders when this cannot be achieved

P9        investigate and analyse diagnostic results in order to draw conclusions about the nature and probable cause of the fault

P10    establish the implications of the fault on the operational Tramway and the wider environment

P11    record details on the extent and location of the faults and repairs in line with organisational requirements

P12    make recommendations on how the fault could be rectified in line with organisational procedures


Knowledge and Understanding

You need to know and understand:


K1        the relevant health and safety procedures appropriate to the activity including safe systems of work K2        the general operational and functional principles of Tramway components, equipment and assets K3        the relationship between Tramway assets, components, equipment and the wider environment K4        the types of diagnostic tests, aids and equipment available K5        how to interpret and analyse information relating to the fault and how this information may inform the fault diagnosis activities K6        the **hazards** associated with undertaking fault diagnosis on Tramway components, equipment and assets K7        the range of actions that can be taken to prevent damage or interference with other assets, components, equipment and the wider environment K8        the methods and techniques for diagnosing faults on Tramway components, equipment and assets K9        the methods and techniques for analysing and determining diagnostic results K10    how to assess the risks arising from faults and how the faults can affect the performance and safety of the operational Tramway K11    how repairs and rectifications are carried out within own organisation and the levels of responsibility of those involved K12    the extent of your own authority and to whom you should report if you have problems that you cannot resolve K13    the methods and techniques for recording and reporting information relating to the activity in line with organisational procedures

Scope/range


Scope Performance

P1        **Health and safety** **procedures** ****may include; ergonomic working, moving and manual handling, Personal Protective Equipment (PPE), working time and breaks, lone working, Personal Track Safety, safe systems of work (authorised access/egress points, signage, lighting, CCTV, walking to and from a work site, planned protection arrangements, emergency stop protection arrangements, possession arrangements, isolation requirements, communication/warning arrangements and techniques, positions of safety, safety zones, lookout arrangements, first aid points, emergency assembly point, safety briefings,  fire evacuation, working at height requirements, working in confined spaces requirements, authorised walking routes, emergency service support (as required), walking to and from a vehicle, designated parking areas). P2        **I****nformation** may include; electronic or paper records and documents (drawings, defect history, fault reports, handbooks, manuals, charts, maintenance specifications/schedules, maintenance history, images, warrantee, instructions, schedules, catalogues, logbooks), eye witness accounts, operator reports, sensory (sight, smell, touch, sound). P3        **F****ault finding activities and diagnostic tests** may include; inspection (wear, breaks/bends, signs of overheating/fretting, missing parts, loose components/fittings, sensory input, leaks, software interactions), Measurement (voltage/resistance/frequency, torque, temperature, dial test, luminescence, power, continuity, current, flow, half-split technique, emergent sequence, unit substitution, input/output, function/performance testing, six point technique, injection, sampling, equipment self-diagnostics), operational (systematic testing, alignment checks, sensor checks, thermal checks, pressure checks, vibration checks, thermal checks, calibration, simulation, tolerance). P4        **D****iagnostic tools and equipment** may include; computer test equipment, in built management system, algorithms, manuals, analysis charts, trouble shooting guides, probability charts, fault analysis charts, diagrams and specifications, manufacturers manuals, measuring devices and indicators. P6        **Stakeholders** may include; colleagues, contractors, pedestrians, road users, businesses, landowners, councils, general public, emergency services, transport operators, passengers, customers. P9        **Nature and probable cause of the fault** may include; environmental, aging, accidental, human error, inherent/intermittent design problem, recurrent defect, component defect, fitting defect, partial failure, reduced performance, out of specification, maintenance technique, maintenance frequency, complete breakdown. P12**    ** **Recommendations** may include; timescales, responsibilities for the rectification, possible solutions.

Scope Knowledge

K6        Hazards may include; Tram vehicles and other road users, stored pressure/force, electrical contact, electrical/electronic interfaces, handling fluids, using faulty/damaged tools and equipment, using unauthorised procedures, working at height, working in confined spaces.


Values


Behaviours


Skills


Glossary


Tram

Tramcars, tram vehicle, and any other rail vehicles that operate on tramways. It includes one or more trams coupled together and includes non-passenger-carrying vehicles.

* *

Tramway

Includes the tramway (a set of rails, switches and crossings which form the route of a Tram) , infrastructure (fixed assets used for the running of the Tram transport system, including, the tramway, bridges, tunnels, stops, stations and fixed equipment for signalling, communications and electrification), depots, stabling yards.

* *

Trackside environment

Includes structures, platforms, embankments.


Links To Other NOS


External Links


Version Number

1

Indicative Review Date

31 Mar 2024

Validity

Current

Status

Original

Originating Organisation

n/a

Original URN

None

Relevant Occupations

Engineering, Engineering Technicians

SOC Code

3113

Keywords

Tram, Tramway, diagnose, infrastructure, faults, failures.