Safe_Design_Manufacture_Import_and_Supply_of_Plant.doc

Details of the testing and examination carried out

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Details of the testing and examination carried out should be documented and must be provided to the each person to whom the manufacturer provides the plant. Typical testing nominated by the designer may include but will not be limited to: electrical testing (e.g. input current, safety contactor current, leakage current, protective earth continuity, dielectric strength test, and insulation resistance) safety function testing (e.g. safety circuit operation times, appropriate installation distances, use of appropriate components and reliability design) temperature rise tests (e.g. for exposed temperature hazards and to confirm components are used within their specification) pressure, stability, mechanical or structural testing to the levels required by the design specification abnormal condition tests (e.g. foreseeable component failures, unexpected start up, hazards following interruption, restoration of power sources – electricity, air - as decided by the risk assessment process. Tests and examinations should include: all critical components the suitability of selected components mechanical devices pneumatic devices hydraulic devices sources of emissions e.g. lasers guarding and interlocking arrangements structural integrity material types and properties. There are both visual and non-visual techniques for checking the integrity of plant manufacture. For example, checking welded joints requires non-visual, non-destructive testing (NDT) techniques. For all high risk plant where welding is used as a joining technique, NDT techniques such as ultrasonic and x-ray procedures should be used to ensure the welds are defect free and fit for the SAFE WORK AUSTRALIA MEMBERS’ MEETING 6 30 SEPTEMBER 2010 PAGE 32 OF 52
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intended purpose. Consideration should also be given to structural flexure and the avoidance of tri-axial stressing as a measure of reducing the tendency towards fatigue cracking. To ensure an accurate assessment of operational stresses is made consideration should be given to the use of techniques such as strain gauging and/or photo-elastic techniques. Stresses should be measured dynamically under a range of operational conditions. 5.4 Information about the safe use of plant Manufacturers must give adequate information to each person who is provided with the plant concerning: the purpose for which the plant was designed or manufactured the results of any calculations, testing, analysis or examination any conditions necessary to ensure that the plant is without risks when used for a purpose for which it was designed or manufactured or when carrying out any activity related to the plant. A manufacturer must take all reasonable steps to obtain the information from the designer of the plant and pass it on to the person to whom the manufacturer supplies the plant. See section 3.7 for the type of information that should be provided.
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