Safety training
Control of Hazardous Energies Standard / V3 2023-12-04
Facilitate in involving learning activity with the participants such as scenario-based questions about typical injuries arising from electrical shocks and arc flash and how to reduce the risk of typical injuries arising from electrical shocks and arc flash:
Examples of how to reduce the risk of typical injuries arising from electrical shocks and arc flash are:
Note
a. do not re-energise circuits that have tripped without making sure that it is safe
b. secure metallic parts, so they do not fall into a circuit
c. de-energise circuits below the working area (not only where you are going to be working)
d.
making live tests with a faulty meter
An example of how to facilitate this learning activity on reducing the risk of typical injuries arising from electrical shocks and arc flash could look like this:
Note
a. assign the participants into groups (maximum of 4 participants per group)
b. share a (text-based) scenario e.g., from Toolbox.org with the groups:
b.i a technician was replacing a 480 Volt electrical breaker
b.ii it had been isolated, removed, and replaced with a higher rated breaker
b.iii the new breaker had been energised and voltage checked with an adequate measuring equipment
b.iv while attempting to check phase sequence, an arc flash occurred
b.v the technician was holding the instrument test leads to the terminals of the breaker at the time of the incident
b.vi he suffered injuries and second-degree burns
c.
Ask the participants to discuss in their group:
c.i
why did this happen?
c.ii what could be learned from this?
c.iii what other actions could have been taken to prevent this?
d. Encourage the participants to ask themselves and their colleagues (when working)
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