Essentials%20of%20Safety

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Essentials of Safety

• Assessment

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1. Name the most heavily weighted document regarding
   OHS Law in Australia.
2. Name at least one Australian Standard relating to
   Machine Safety
3. Give at least one reason why safety is important.
4. Who carries the most obligation when it comes to
   the safety of a machine?

3

• Name the 3 steps of a Risk Assessment.
• Risk is a result of what two factors?
• Explain the measure of Severity
• Name two principles of Safe Design.
• Identify two considerations of Reasonably
  Practicable.
• Describe the difference between Qualitative and
  Quantitative standards

4

• Functional Safety is measured in Probability of
  what per hour?
• What is the main difference between Category 3
  and Category 4?
• Participant Scenario
• See the attached picture.

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Bench Grinder

• This machine is used to grind tools in a
  Maintenance unit of Clipsal Australia.
• Operators hold the tools by hand.
• This machine works 1 hour and half per day,
  (around twenty manipulations/ day).
• The grindstone is moved by a 240VAC .5 kW-1500rpm
  electric motor.
• Let s Identify the Hazards..

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Bench Grinder

• Assess the risk level
• Severity?
• Frequency?
• Possibility?

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Bench Grinder

• What Safe Design principles could be applied here?

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Engineering Controls

• Suggest the controls to guard against the hazards
  identified to the appropriate category level.
• E-Stop with Monitoring Relay?
• Light Curtain?
• Safety Mat?
• Consider what is reasonably practicable?

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Bench Grinder The Solution.

• Mechanical Guards
• Lighting to assist operator vision
• Operator Presence Switch
• Push Bars (E-Stop)
• Stop Category 1?

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