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Electrical Safety | Parker's Electrical NQ


The most important part of you electrical system is the earthing system as this is what helps protect you and your family from electrical shock. The earthing system connects all your appliance with conductive parts (ie. stove, washing machine, fridge...) so that if there was an active fault in the appliance the circuit protection would trip and the appliance would not become live. There are many parts to the earthing system from the earth electrode (pictured) outside your home to the connection on the appliance, some of these parts are inside the main switchboard that includes a connection to the main natural as well as other places. Your main earth electrode should not be a piece of pipe it should be a copper plated steal rod like the pitcher with a tag on it.
Are you experiencing electric shocks from metal parts in your home (ie. stove, fridge, water tap...)? This could be a sign that the neutral connection has come to fault and potentially dangerous voltages are leaking back onto the earthing system (since the neutral and earth are connected). Your lights could be flickering or your appliances behaving strangely as they are all receiving odd voltages.
Is your earth completely surrounded by concrete? This could potentially become a shock risk as the resistance of the earthing system to earth has become of a high resistance. The current flows in the path of least resistance. This means that the earthing electrode has a resist so high that it no longer operates as it is designed to and the current does not pass to earth. Have you had work done on your home like external walls being re-sheeted ? if so check your earth has not been disconnected as we have seen this to be the case on some jobs.
Burnt off neutral on the mains boxBurnt off neutral.


The next part of your electrical safety is the circuit protection device (ie. circuit breaker of fuse). If your home still has fuses (pictured) we recommend replacing them with circuit breakers and/or circuit breaker RCD combination protection as fuses is technology that is over a century old and at least 30 years out of date. This is where we find most power faults in older installations.
Plug in Circuit breakers are not an acceptable replacement solution as, like fuses, anyone can put any size breaker in and overload the circuit which in turn can cause fire. For example a large 32A circuit breaker (stove size) into a 6A wiring situation (lighting circuit).
plugin_cbfuse holder

This type of protection should be replaced immediately as it is out of date and can be dangerous.
To the left is circuit breakers that are used today (varying in appearance based on brand). But wait, that's not all. After the fuse was removed circuit breaker protection was installed to improve electrical safety. Some years later it became law that your power AND LIGHTING circuits have to be protected by RCD (Residual-Current Devices).
I can not say enough about the need to replace the old fuses with residual-current circuit breaker (rccb) as these new devices are real life savers and the old fuses are very bad protection against electrical shook, and i wood say that 50% of the faults i deal with are related to fuses, normally in the way of the wire burning off the back of them.


The next is the Residual-Current Device (RCD) that is probably the most important thing you can have put on your homes electrical system. In fact, in Australia, it is law to have an RCD on all your power and lighting circuits, this includes 3 phase outlets.
You can test these with the test Button on the device, but we recommend that if you have just bought your home that you have a qualified electrician to test the operating of an RCD with a proper Residual-Current Device tester. The test Button only tells you that they will trip but not if they are doing their job in the required tripping time.
Lastly, in years gone past many electrician install one RCD to protect the entire building. We recommend against this and it is frowned upon today because if you have a fault on 1 circuit you could lose supply to your whole home. Instead we use residual-current circuit breaker (RCCB) on each circuit, this device is a Residual-Current Device and a circuit breaker in one.
rcd4p4 POLL RCD rcd2p2 POLL RCD rccb RCCB


All switchboard should have mains protection and any new switchboard or switchboard that have had metering work  modifications must have mains protection. The most common form of  mains protection is a CB on the penal near the meters that is sealed by Ergon and has a sticker ( contact an electrical contractor if this circuit breaker is in the tripped (0) position), the other way of doing this is to have a meter isolation link and a CB as the main switch, this in most cases is not recommended as there will be more then 1 main switch and the rating on any one might be too low and cause nuisance tripping.


Parker's Electrical NQ recommends that everyone that has old fuses in there switchboard inquire about a upgrade immediately as they are over 30 years out of date and can be a fire danger. We recommend that you have all your power and lighting circuits on a residual-current circuit breaker (RCCB), have mains protection, and you have the whole installation checked every 2 years and as soon as possible after a cyclone when your house has had any damage.
The reason for this recommendation is that RCD's can go faulty, earths can break, neutrals can also break off at the pole or mains box.  The electrician should check you're earthing system including fans and lights, your active and neutral connections, all the connections in the switchboard, a RCD test with results, and a fault loop impedance test. The resulting tests should then be supplied to you in the format of a report with required changes and recommendations that has been found.

This article is the opinion of Parker's Electrical NQand is only a guideline, for more information contact your Electrical Contractor.

coppyright 2016 Parker's Electrical NQ. You have the right to use any part of this article as long as you credit it to Parker's Electrical NQ and link back to this article using this link ELECTRICAL SAFETY IN YOUR HOME BY PARKER’S ELECTRICAL NQ

43 Canara St
Cranbrook QLD
location / Address


Switchboard Upgrade

Switchboard Upgrade Parker's Electrical NQ We can offer a full range of switchboard upgrades.

Switchboard Upgrade

Parker's Electrical NQ are specialist when it comes to your switchboard, so her are a few tips on whether your switchboard needs upgrading and some of the options you might have, but first the sings that you need to upgrade arefuse
* You still have the old fuses (These should be replaced with circuit breakers by an electrician NOT THE PLUG IN TYPE)
*You don't have any RCD'S (By law you should have RCD's on all power and light circuits)
*Your Air conditioners go off for hours each morning and/or night.
*Your switchboard is an old timber board or asbestos board. Most switchboards installed before 1990 are very likely to contain asbestos.) This is a link to a site with some information on this Queensland Government
*If you have added an extension to your home or business the current electrical switchboard may need to be upgraded to cope with the added needs, also your mains may need to be upgraded.
*You have been having some power faults. (This is often due to circuits being overloaded and the wrong fuse wire being installed, or bad connections on the terminals of the fuse holder. But can be other problem in your home.) We can help with a upgrade to the latest Australian standards, all our switchboard upgrade are solar ready and have T33 for air conditioners and Hot Water. Now for your options and these will depend on your old switchboard,
1. Full upgrade with new board and mains with weather proof switchboard on the outside, towards the front of your house. (Ergon Preferred)
2. The fuses being replaced with circuit breakers/RCD combo.
3. New sub board inside/under your house with the meters outside for Ergon to read.
4. New sub board inside/under your house with the meters on the front fence, so ergon don't have to enter your property.
The Preferred method for Ergon is option 1 as this places all the meters, natural links and earth outside so they can test at any time, eg after a cyclone, or storm. For a quote please fill in the contact form or call 0488571866 Mains Upgrade
As your electrical needs increases, the demand on your mains increase, many old house have very small mains that were never meant to cope with air conditioning, induction cooktops, pools, spars, ext. Also with the Australian standards today your mains may not be stabile as we need to protect the mains with a CB and the size of the CB with your old mains might cause nuisance tripping. So with a Switchboard upgrade we often include a mains upgrade especially if there is singes that the mains have been overloaded in the past.
Main Earth
Another part of the main switchboard and some sub boards is the main earth, if your house was built in and before the 1980's it could have the main earth on a piece of water pipe, this should be replaced ASAP, as it is probably not giving you a good earth connection and could cause electric shocks in your home. The earthling system is a very important part of your home electrical system and should never be disconnected, if it needs to be disconnected call an electrician as there are ways to do this safely, there is a risk of electric shock when disconnecting the earth especially if this is an old home.
Main Switchboard Upgradeswitchboard upgrade

Electrical Faults are one of the main reasons for Fires and electric shock. Most of these faults are caused by people doing there own electrical work

Fault Finding

Burnt wires on CB We are specialist when it comes to finding faults.

Switchboard Upgrade

Parker's Electrical NQ can find all your faults and repair or replace the issue, Gary has a life time of fault finding and can usually fix the issue strait away for you. We work on all Industrial, Commercial and Domestic Electrical work, so we have a good understanding of how things should work, this make it easer for us to track down them faults.

If you are having a fault where your RCD keeps tripping or won't reset, there are a few things you can try yourself.

  1. The first is to turn off the mains power and try to reset the RCD, if it resets turn the power back on and go to the net step, if it does not reset give us a call as the RCD needs replacing.
  2. UNPLUG everything on that circuit and try to reset the RCD if it resets plug things back in until you find what is tripping the RCD. If it will not reset give us a call as there is something wrong with your wiring.

Common curses of RCD tripping are:

  1. Fridge in defrost cycle.
  2. kettles,
  3. Toasters
  4. Weather prof power points (that have water intrusion)
  5. Extension leads (outside and have gotten wet)
  6. Serge protectors that have gone faulty.

Some series faults that needs a Electrician IMMEDIATELY are:

  • Tingles of water pipes or other metal items.
  • Power flickering, or lights diming when you start your Air Conditioners.
  •  Vermin damage wires that has some of the inner insolation or copper showing.

Other faults you may have are short circuits, hot water, Air Conditioning,  Parker's Electrical can help you with all of them so give us a call on 0488571866

Condemned switchboard
Ergon Condemned switchboard, That we replaced and arranged for power to be reconnected.
Condemned switchboard
Burnt off wire at mains connection box, Parkers Electrical NQ replaced the mains box.
Condemned switchboard
Burnt off wire on Circuit Breaker.
Condemned switchboard
Water ingression into a Air Conditioner isolator.

LED Lights

LED Lighting LED lighting is the best option for all your lighting needs.

LED Lights

Parker's Electrical NQ are your specialist when it comes to LED lighting, we install LED lights in people homes and work place every day which means we have the experience you need when it comes to LED lighting, our friendly staff will be happy to help you decide on what light you need or choose something for you.
Below we have some information on LED lights and some photos of our jobs.

LED stands for 'Light Emitting Diode', a semiconductor device that converts electricity into light. LED lights are energy efficient and using approximately 85% less energy than halogen or incandescent lighting, this means a significant savings on your power bills, also LED lights have a much longer lifespan than other types of lighting as shown in the table below.

Estimated Lifespan*

LED 38,000 hours
CFL 11,000 hours
Halogen 3,000 hours
Incandescent 1,000 hours

And as all ENERGY STAR products, products are subject to random testing every year to ensure they continue to meet the ENERGY STAR requirements.

Parker's Electrical NQ can upgrade your old lights to LED or install new LED lighting for you, all our LED lights come with a 3 year guarantee, we use Clipsal, Atom, Pierlite to name a few. We are dedicated to giving the best lighting with the best price that will also help bring your power bill down. In our opinion they have finally made a down light that is worthwhile using as they do not generate much heat and all the light goes to the right place and not in the ceiling. There are many LED lights available now like down lights, spot light, flood lights, high bays, round lights, ext, just about anything you may need and they are all energy efficient lights.
So give us a call on 0488571866. or fill out our contact form.

LED Display counter lights
Parker's Electrical NQ fitting LED lights in the Display counter at TSG Mackay
Under hand basin LED lighting
LED Trouph  lights at TSG Mackay
Parker's Electrical NQ fitting LED T bar lights at TSG Mackay
LED Counter Lights
Parker's Electrical NQ fitting LED lights in the front counter at TSG Mackay
LED Display counter lights
Parker's Electrical NQ fitting LED lights in the Display counter at TSG Mackay
TSG Mackay
Parker's Electrical NQ fitting LED lights at TSG Mackay


Air Conditioning We install and repair Air Conditioners.



Parker's Electrical NQ specialize in the installation of split system air conditioners; as we are electrical contractors we do the complete installation including electrical and any switchboard work that is required, our staff can also repair that old system and in most cases repair or modify them hard to get parts, JUST BECAUSE ITS OBSOLEAT DON’T MEEN IT CAN’T BE FIXED.

      Our choice of unit is Fujitsu Split Air Condition which comes with a 5-year warranty, and as we are electrical contractors we connect your air conditioner to Power on tariff 11 or tariff 33. Is your Air Condition 10+ years old? If so, then it is time to think about a new one as any Air Condition that are 10 years old are the old direct on line, which use a lot of power compared to the newer inverter type Air Condition. The latest Aircondition unit are all going over to a new more environmentally friendly gas that is also helping our environment. Our qualified team can fault find and repair your existing unit, if we find that it is not repairable we will give you a quote to replace it. Air Conditioning Cleaning We offer a Air Conditioning cleaning service at $90 each, Where we will come into your home or office and take your indoor unit apart and clean the fan and all those hard to get places. The reason we dismantling the unit is so we can get to all the drains, some of which are located in the back of the unit and can't be accessed without earth taking the unit off the wall or dismantling the unit. I have seen units that have been stem clean or clean without even taking the front cover off and they look good from the outside but are still full of mold. Why should I have my air conditioner clean?
1. Save on Power Bill:- Cleaning a dirty Air Conditioner can save you up to 30% on power usage for that unit, when a unit is dirty it has to work harder to cool or heat the air because it has to work harder to cool or heat the air as the air flow is slowed down and the heat is not transferred properly.
2. Microbial Contamination:- All regularly used Air Conditioners become infected with microbial contamination which includes fungi, mold and bacteria. Air Conditioners are the perfect environment for such contaminants and will become airborne every time you use them.
3. Your Air Conditioner will last longer:- A regularly serviced Air Conditioner will last longer then one that has never been serviced, (you service your car regularly so why not your air conditioner?), and the only way to do this is to disassemble the unit as there are drain at the rear that need to be cleaned and the main drain is often partially blocked.

Here are some photos that show the sings that you're Air Conditioner needs replacing
Rusted Air Conditioner Condensor
Rusted Condenser
This needs replacing before it loses the gas and harms the ozone layer.
If you're Air Conditioner in using R22 Gas then it is in need of replacing instead of repairing as these units are now more then 10yeas old. R22 is getting more expensive and harder to get so many service company's including Parker's Electrical NQ do not carry R22 any more.

Parker's Electrical NQ

Service Area Townsville, Kirwan, Aitkenvale, Thuringowa, Garbutt, Bohle, Kelso, Bushland Beach, Cranbrook, Castle Hill, Idalia, Pallarenda, Mount Louisa, Douglas, Stuart, West End, Rasmussen, Condon & More

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