The CFw or Control Framework is an exhaustive and rigorous analysis that identifies what an organisation should have in place for operations to avoid fires involving mobile machinery.

The method is described in more detail in this article.

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Click to access: EMESRT Performance Requirement 4 – Mobile Equipment Fire Management

Control Framework for Mobile Equipment Fire Prevention and Response

A graphic visualisation of the Control Framework in a format that presents the:

  • Required Operating States in a short format - and then provides an overview (in the right-hand panel) of the detailed description developed by EMESRT contributors
  • Failure Modes in a summary format. Each of the Required operating states is (in detail) impacted by a number of credible failure modes. The summary information for these is described by clicking on each of the second-order bubbles, and finally
  • Credible failure mode detail is provided in the Important Document section below
  • Business Inputs which address these failure modes appear as a list on the right-hand side panel of the graphic

Feedback on this analysis is welcomed, and as it is generated dynamically ongoing changes will be made to this presentation as new incidents and emerging technologies inform the failure modes and business inputs presented.

Recently updated

EMESRT Performance Requirement 4 (PR-4) Mobile Equipment Fire Management

Mobile equipment fires continue to occur regularly in the mining and resources industry and there are clear drivers to improve the understanding and application of fire prevention and mitigation controls. Mobile equipment fire events: - Present significant risks for operators, maintainers, and emergency responders - Can be catastrophic in underground operations - Create wider operational and commercial issues for earthmoving equipment owners and operators - Require mandatory statutory reporting in most mining jurisdictions - Have been extensively analysed and regulators now expect that mine operators will improve their mobile equipment fire management performance

Prevention of fires in underground mines - Western Australian Government

Fire is a serious hazard in mines and outbreaks of fire underground can be particularly dangerous due to the: - confined nature of excavations - potential quantity of smoke and noxious fumes - restricted ability to evacuate quickly from the mine.

CFM-MN-04 Inadequate Maintenance results in excessive heat during subsequent mobile equipment operations

Fires following maintenance, caused by:

  • During normal operations engine components rise above the ignition temperature of adjacent fuel sources caused by:
    • Turbo failure e.g. heat shielding for turbocharger not replaced
    • Electrical fault (including cable runs or insulation being pinched/damaged, battery locations being compromised, etc.)
    • Friction between moving components e.g. collapsed wheel bearings
    • Maintainers not identifying compromised elements of the fuel, hydraulic or fire response systems (so work orders not raised or not closed to meet site requirements)
    • Operating without lubricants
    • Lagging on hot surfaces not repaired/replaced
    • Deflection barriers that separate oil hoses and fuel lines from hot surfaces e.g. turbo chargers
    • Like for like components not replaced e.g. contained fuel lines and hydraulic hoses that prevent leaks from spraying onto hot surfaces.

 Credible Failure mode is addressed by:

  • BI-01.13 Clear maintainer performance management expectations supported by an active and consistent performance management process
  • BI-01.51 Skilled and experienced personnel are accountable for maintaining mobile equipment
  • BI-02.02 Maintenance requirements cover all safety and operational systems on mobile plant
  • BI-02.07 Regular checking and maintenance of brakes, steering and tyres
  • BI-02.09 Regular checking and maintenance of alarms and monitors
  • BI-02.21 Design of components means they cannot be fitted wrongly e.g. turbo chargers on backwards
  • BI-04.04 Site change management process apply to the introduction of new types and models of mobile equipment
  • BI-05.04 Regular and consistent application of performance management processes

BI-02.09 Regular checking and maintenance of alarms and monitors

There are minimal alarm and monitor failures on operating mobile equipment.

Pre-ignition detection and early fire detection in mining vehicles

With an increasing demand for early detection of mining vehicle fires, the question is how an early detection could be achieved? Data from cone calorimeter tests and incident summary data were applied when analysing possible fire detection solutions on mining vehicles. Based on the tests, pre-ignition and post-ignition solutions in the cab and the engine compartment were analysed and presented. If overcoming the challenges of the environment, smoke sensors could for example be a potential pre-ignition detector in engine compartments. Based on the incident summaries, clues on detectable traces, etc., were identified and a discussion on the types of sensors for various types of vehicles and sections was provided. Fires in for example the turbo/exhaust area and engine compartment, could be detected prior to ignition using gas sensors to detect the emitted hydrocarbons or an oil mist detection system.

Equipment fires, investigation and response - Queensland Government, Australia Safety Bulletin October 2011

Safety Bulletin October 2011, Queensland Government, Australia. The Mines Inspectorate's concern over the number of equipment fires on mines has been expressed in Safety Alerts and Safety Bulletins.