Tools & Associated Equipment

What is a Class I Appliance?

• An appliance that has its exposed metal earthed by an earth wire

• An appliance with 2 layers of insulation and no earth wire

• An appliance that is expensive

• An appliance that relies on SELV

What is a Class II Appliance?

• An appliance that has its exposed metal earthed by an earth wire

• An appliance with 2 layers of insulation and no earth wire

• An appliance that is relatively expensive

• An appliance that relies on SELV

What is a Class III Appliance?

• An appliance that has its exposed metal earthed by an earth wire

• An appliance with 2 layers of insulation and no earth wire

• An appliance that is inexpensive

• An appliance that relies on SELV

What does SELV stand for?

• Seismic Electrical Limiting Valve

• Sudden Energy Load Verification

• Seperated Extra Low Voltage

• Sound Extreme Loud Volume

What is an Isolating Transformer?

• A tranformer that does change the voltage and is not electrically seperated from earth

• A tranformer that does not change the voltage and is not electrically seperated from earth

• A tranformer that does change the voltage and is electrically seperated from earth

• A tranformer that does not change the voltage and is electrically seperated from earth

Should an isolating transformer be plugged in before or after an extension lead?

• Before - so it can protect both the tool and the extension lead

• After - because it needs to be close to the job

• Before - because it won't get wet under the soffit

• After - so it can only protect the the tool and the worker

Which of these answers best describes how an RCD protects you?

• It detects an imbalance between phase and earth when there is fault current in the phase and isolates all active conductors

• It detects an imbalance between phase and neutral when there is fault current in the earth and isolates both active conductors

• It detects an imbalance between earth and neutral when there is fault current in the phase and isolates the phase conductor

• It detects the balance between phase and neutral when there is current in the earth and regulates both active conductors

What are 3 things that you must check before using an extension lead?

• That it has a test tag; it is brand new and is a good brand of lead

• That it is easy to roll up; easy to store and easy to identify as yours

• That it has the correct voltage rating for the job, and that there are nicks, wear or damage - and that it has a valid tag

• That it has the correct current rating for the job, and that there are no nicks, wear or damage - and that it has a valid test tag

Which Standard outlines a testing process to monitor the condition of electrical equipment with a supply cord that is intended to be used in a workplace, public place or hired out?

• AS/NZS 3760:2010

• AS/NZS 3000: 2018

• AS/NZS 3760:2023

• AS/NZS 3000:2007

What does the test tag on a worksite electrical appliance tell you?

• That it is safe to use right now

• That it has been tested, and proven to be safe to use until the expiry date

• That at the time of testing, the equipment was in safe working order

• Who it belongs to