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Electrical safety for apprentices — Transcript · YTtoTranscript

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Electrical safety for apprentices

Work Safe Queensland · 2,160 words · 11 min read · EN

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Below is the complete, readable transcript of Electrical safety for apprentices by Work Safe Queensland on YouTube. Read the full text, copy any part you need, or generate a transcript for any video with our free tool.

hello and welcome to our electrical apprentice and supervisor safety presentation this film is for our electrical apprentices like me and for our trades person who are supervising apprentices to raise awareness of the dangers present in electrical work and what you need to do to stay safe the electrical industry is vast in its scope

and begins with the generation of electricity it continues through transmission distribution and then in individual installations which is where most of you will be working this film looks at how you can stay safe at work it reminds apprentice supervising trades persons of the importance of leading a culture of safety so that everyone gets to go home

at the end of the day safe work practices are essential if you don't know how to do something ask this includes supervisors we want to make it absolutely clear that the apprentice must be supervised at all times by an electrical worker licensed to perform the work it's the employers responsibility to ensure the level of

supervision is appropriate for the apprentice this includes the type of electrical work to be performed and the adequacy of the apprentices training and competency each year in Queensland there are a number of serious electrical incidents and tragically some of these are fatal we want to make sure this doesn't happen to you or someone under

your supervision the impact on you your mates and your family would be nothing short of devastating so for every job that you do make sure it's safe and seek guidance when you need to supervising trades persons must be proactive and lead safety by making sure workers are performing their work in a safe manner

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identify isolate and test the isolation point of the circuits or equipment that you're working on must be identified the correct circuit or equipment must be isolated tested and then proven to be de-energized this is very important for your safety and the safety of others around you you could save your life and theirs if you

have any doubts ask questions say no if you need to always discuss any electrical safety issues or concerns with your supervising trades person or employer if you still feel your concerns have not been addressed contact the Electrical Safety office as an electrical worker you will likely need to enter domestic commercial or industrial sealing spaces get under

floors go into other building cavities and high-risk environments to perform work several serious incidents have occurred in sealing spaces over the last five years and you must be aware of the risk of electric shock contact with damaged or expires love wiring or equipment can lead the serious injury or even death unprotected and poorly installed

electrical cables can easily be damaged by being walked on having objects dragged over or placed on them or by being chewed by vermin this can damage the cable insulation and expose live conductors in older installations the cable may have perished making them no longer electrically safe or they may contain equipment with exposed live

parts the incorrect and unsafe installation anyone entering the ceiling space is then at risk of electric shock either through direct contact with live parts or coming into contact with structural metal work that has become live the best way to control this risk is to isolate and effectively lock out all circuits that are located within the

space prior to entry it is also very important to consider all circuits within the space as there is often multiple sources of electricity all circuits that cannot be isolated from the switchboard such as the consumer mains solar or battery systems a risk assessment needs to be performed and controls put in place to ensure your

safety the employer must insure an apprentice with less than six months training does not work in the immediate vicinity of any energized high voltage exposed part or anywhere there is a risk that could come into contact with an energized low-voltage exposed part this includes testing a supervising trades person must be readily available to the apprentice

at all times whether this is in the immediate vicinity or contact able through other means such as phone depends on the skill and competency level of the apprentice as an apprentice supervisor you must prove that the equipment the apprentice is working on is not energized before the work starts as an apprentice this is a skill that

you'll learn during your apprenticeship all electrical workers must be licensed and competent for the work they perform there is a basic ABC for licensed trade people working in our industry when it comes to isolation of electricity I assume nothing be believed no-one and C check everything never assume a circuit or equipment is

not live do not trust anyone that tells you something is not energized and check it always use a voltmeter or multimeter to test and confirm the equipment you're working on is not energized a volt stick or detector is not suitable for testing and should only be used as an indicator device always confirm your test

instruments are functioning correctly before and after proving your isolation any equipment containing electrical wiring can become energized at any time if there is a fault or if someone has not done their job properly unexpected situations can occur when you least expect it so it's vital you test before you touch and find out if it's safe to

work on the equipment as an example this is a domestic water pump located on a farm in Victoria moisture entered the electrical terminals of the pump motor which caused the frame of the pump to be live at 246 volts a person died when he touched this water pump don't let this be you always

test before you touch another industry basic is don't work on or near energized parts you may hear the saying don't work live quite often in our industry performing work on energized parts is not allowed in Queensland unless you meet the strict requirements of the electrical safety laws if you isolate a switchboard at the main switch but do

not remove the service fuse you'll be working on a switchboard that still contains energized parts this is a switchboard where the main switch is off but there is still power to one side of the main switch so we recommend that the service use is removed your supervising trades person can do this if they are

authorized by the supply authority and follow the required safety procedures so let's look at some examples of what can happen if these steps aren't followed this electrician was working on a switchboard that contained energized parts and he did not isolate or take adequate precautions three years later he still does not have the full use of

his hand this could happen to you if you don't work safely and take the necessary steps to isolate the equipment you are working on or near these next few images detail a severe electrical incident that involved a young electrical worker who was working in this electrical switchboard compartment the isolator was turned off in this compartment however

the terminals on one side of this isolator were still energized just as we saw earlier in the other switchboard the electricians pliers came into contact with the live parts causing a large electrical explosion to occur the arc from the explosion caused severe burns to the electrical worker the electrical worker his supervising trades

person and the employer all failed to eliminate the risk by following the basic procedure of isolating the equipment the compartment could have been isolated upstream to eliminate the hazards of working near energized parts the reason given for not isolating further upstream was this would have affected production this is never an excuse to work unsafely electrical work

must not be carried out on electrical equipment while energized simply because it is merely convenient for the electrical equipment to stay energized while the work is being performed the explosion also caused a loss of production but also add to the cost of replacing and repairing the switchboard compartment and the devastating ongoing impact of this injury to the young man

his family and colleagues the short clip demonstrates what could happen if a fault is applied to a switchboard this explosion was performed under control conditions and demonstrates what can happen when the rules are not followed when you don't follow the rules you're at risk of electric shock arc flash burns and serious injury so how do you

make sure you and your workers can work safely to make sure the circuit or equipment are safe you must lockout and tagout this is known in the industry as lockout tagout with the following steps consult with the person with management or control of the workplace and notify any other affected people identify the

circuits requiring isolation and associated control device to be isolated switch off or otherwise isolate the identified circuit lock the isolating switches and tag the switching points where possible to provide general information to people at the workplace test to confirm the relevant circuits have been de-energized and any other relevant conductors in the work area

retest as necessary for example if the person carrying out the work temporarily leaves the immediate area checks and tests must be carried out on their return to ensure that the electrical equipment being worked on is still isolated and safeguard against inadvertent reconnection by another person supervisors you must ensure that when you're supervising an apprentice

with less than six months of training they cannot be in the mediate vicinity of an energized high voltage exposed part or anywhere there is a risk they could come into contact with an energized low-voltage to the exposed part this includes testing and neutrals are always considered to be live parts every circuit you work on must be

switched off by isolating the circuit breaker or removing a fuse cartridge a lockout device must then be attached and padlocked with a completed danger tag attached never remove someone else's lock or tag without their permission and always check with your supervising trades person before reenergized Australian standard a s and Zed us for

836 safe work on or near lv electrical installations and equipment provides further guidance on making your working environment safe we recommend you get yourself a copy or have your employer provide you with a copy and follow the guidance given in it these next few images depict a fatality that occurred in 2015 a 25 year old electrical worker

was repairing this air conditioner after isolating and carrying out his repairs he energized the air conditioner to check if it was working properly once he confirmed the air conditioner was working correctly he did not isolate again before finishing the eternal electrical work and replacing the covers he continued working on this equipment while the

electrical control panel was energized this electrical worker was killed when he made contact with the energized parts within the air conditioner control panel isolating the air conditioner unit would have prevented this young electrical workers remember to always lockout and tagout every circuit you work on every time always remember treat all cables is life

not just actives this is a photo of a socket outlet installed in the roof space for a light an electrical apprentice had turned off the light switch but not turned off or locked out the circuit at the switchboard there was a broken neutral at the socket outlet the broken neutral was live the

apprentice did not test before touching the neutral the 22 year old apprentice was killed where was his supervisor if you were the supervisor could you live with an incident like this occurring to someone under your guidance or supervision an apprentice must be supervised at all times by an electrical worker who is licensed and competent to

perform the work it is the responsibility of the employer to ensure the level of supervision is appropriate for the apprentice so in summary don't forget always ensure the correct supervision is being performed and remember to always test before you touch don't work on or near live parts and make every circuit you need to work on

safe by isolated after isolating lockout and tagout to ensure no one turns on the supply while you are working on the circuit treat all cables as live not just the actives if you have any doubts ask questions and say no if you need to always discuss electrical safety issues or concerns with your supervising trades

person or employer if you still feel your concerns have not been addressed contact the Electrical Safety office for further information visit Electrical Safety dot QLD govt au or call 1300 362 one to eight you