Buyers Guide to Surge Protected Power Boards

How do surge protected power boards work ?
At first glance a surge protected power board operates like any other Power Board. It shows its ability at that moment when too much voltage gets passed along the transmission line , the surge protected board lets only a ‘safe’ amount through to the connected equipment. The rest it channels into the electrical outlet’s ‘earth’ and safely dissipated into the ground.
When a surge occurs at a certain level above normal voltage, a component built into the surge protected power board becomes conductive and starts to carry the excess electric current back down through the ground wire, so the damaging high voltage doesn’t reach connected equipment. Once the surge ends, that protective component resumes its ‘dormant’ stage of being non-conductive. It’s a bit like an electrical version of a pressure valve.
Australian domestic wiring is designed for a standard voltage of 230–240 volts. If the voltage goes too far above that, it can damage electronic equipment, which usually has many sensitive components. If excess voltage lasts for a very brief time (1–2 nanoseconds) it’s called a spike. If it lasts longer it’s called a surge. Even though a spike or surge can be so brief their duration is measured in nanoseconds, they can still cause damage to sensitive components. It is vitally important to protect sensitive business equipment, Computers, printers, photocopiers etc these items of equipment are sensitive to Surges in voltage.
Surge_protection_board
So what sort of a Surge Protected Board should you Buy ? Here are the specifications you should consider…Energy absorption/dissipation – This rating, given in joules, tells you how much energy the surge protector can absorb before it fails. A higher number indicates greater protection. Look for a protector that is at least rated at 200 to 400 joules. For better protection, look for a rating of 600 joules or more.
Response time – Surge protectors don’t kick in immediately; there is a very slight delay as they respond to the power surge. A longer response time tells you that your computer (or other equipment) will be exposed to the surge for a greater amount of time. Look for a surge protector that responds in less than Ten nanoseconds.
It is best to look for a Surge protected board with an indicator light that tells you if the protection components are functioning. Eventually the protection component will burn out after continual power surges, but the board will still function as a power connection. Without an indicator light, you have no way of knowing if your protector is still functioning properly.
Other important features may include ?
Building wiring status indicator: Detects potentially dangerous wiring problems in the wall outlet.
Circuit breaker: Protects the surge board from overload by connected devices drawing too much current.
EMI noise filtration: This reduces or eliminates line noise (electrical interference).
Other connections: Surge protected sockets for coaxial cable, modem or Ethernet network, all of which can also conduct high voltage that can damage connected devices.
Outlet spacing: Allows more room for one or more devices that use a transformer block.
Sockets: Check the number of mains power sockets available, usually from four to eight.

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At Tested and True …we come to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standard AS/NZS 3760:2010 ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager Tested & True ~ test & tag Manager SA 0407605568

Take Care of your Workplace Appliances and Cords

PULL THE PLUG… NOT THE LEAD!

Pulling the plug out of the socket by the lead will eventually expose the single wires which weakens its insulation and therefore increases electrocution risk. The Image below shows what happens to plugs pulled out by the leads
Exposed wires from pulling on lead

KEEP POWER LEADS AWAY FROM HEAT AND WATER.

Heat or water can damage the insulation and create a shock hazard.

POWER LEADS UNDER CARPETS ARE A FIRE HAZARD.

Don’t run electric cords under rugs, through doorways or anywhere they will get excessive wear.

INSPECT POWER LEADS AND POWER BOARDS

Worn, they can cause fires, short circuits or shocks. Check electrical cords and plugs and discard them if they are worn or damaged.

ELIMINATE MULTIPLE CONNECTIONS ON ONE POWER POINT

Plugging a number of cords into one outlet is a fire hazard. It usually indicates that your home wiring is outdated for your needs and that you should have more outlets wired in.

DO NOT CASCADE FROM ONE POWER BOARD TO ANOTHER OR OVERLOAD POWER BOARDS

Generally use Power Boards for Low current devices not Heaters, Kettles, and rotating machinery. Avoid cascading or connecting power boards together in chain arrangement as this may overload a 10 amp power wall socket and cause a fire or compromise the the electrical safety of the items attached to the power boards. Here below is an image of a burnt out power board which ran a 2400 Watt heater plus other electrical items. Note the burnt out socket.
Burnt out Neutral connection _ Personal and Fire Hazard

DON’T USE EXTENSION CORDS AS PERMANENT WIRING.

An extension cord is a handy device to temporarily bring power to an area in your home that does not have an outlet. It was never designed to take the place of permanent wiring. Using extension cords as permanent wiring is an indication that your home wiring is not adequate and should be updated.

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Here at Tested & True ~ test & tag, we can come to your work place and do an assessment of your Electrcal Hazards it is usually offered as an extra service and conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568

Tested and True uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one operation.On top this all our Technicians are Trained to National Standard UEENEEP008 by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standards ensuring that you get Quality Service at a competitive price.

Call Now Mobile 040 7605568

Visit us at

www.testedandtrue.com.au

or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide October 2013

The Safety Switch turns off, so what do you do?

A simple step by step guide to fault finding a tripped Safety Switch.

Note: Some types of appliances may cause incidental or nuisance tripping of your Safety Switch or RCD device. Typically Water Heaters, Electric Jugs and Kettles, Steam Irons, Dishwashers, washing Machines, Swimming Pool Equipment, Auto Defrost Refrigerators and Freezers.

Most Important: If your Safety Switch has turned off, it has done so for a reason. It has detected a leak of some electricity. This may be through a faulty appliance or it may be a fault in the house wiring. These instructions will help you find that leak.  

  1. First try to turn the Safety Switch on.[Marked Residual Current Device]
  2. If it stays on then the fault was intermittent or transient and we can do nothing at this stage. Refer to Note above.
  3. Think of what you were using at the time.
  4.  If the Residual Current Device trips off again, got to point 5.
  5. Turn on the Residual Current Device.
  6. If it won’t stay on then you will have to unplug all appliances!
  7. This includes any outside power points or power to outbuildings.
  8. At this point the Residual Current Device should stay on. [If not you will need to call an Electrician.]
  9. If the Residual Current Device stays on then turn the Circuit Breakers on one at a time.
  10. When you come to the leaking circuit, the Residual Current Device will turn off.
  11. Unplug all appliances that are plugged in to power points that do not work.
  12. Turn the Residual Current Device on. If it won’t stay on then you will have to call an Electrician.
  13. If it stays on, then one of the appliances you have unplugged is faulty. Plug the items in, one at a time until you find the faulty one.

Remember Do not fix any Electrical device yourself, give the device to a suitably qualified electrical repair workshop or if under warranty consult with the manufacturer for the possibility of repair under those warranty conditions.

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Tested & True ~ test & tag  Adelaide uses the very latest in Portable Appliance Testing…The STC Pro-Logger 2 it can perform static testing class 1,2 & M ,RCD testing, Earth Leakage Detection, 3 phase run testing and logs results as you test. all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australian Standards ensuring that you get Quality Service at a competitive price.

Call Now Mobile 040 7605568

Visit us at

www.testedandtrue.com.au

or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide September 2013

Your Electrical Switchboard the First line of Defence in Safety

Fuses,Circuit Breakers and Safety Switches

These devices are found in your Switch board understanding these devices and how to use and maintain them will help  your management and understanding of Electrical Safety in the Workplace.

Primary Overload response devices (Fuses & Circuit Breakers)

Fuses and circuit breakers are built to fail in conditions of excess current which can overload the electrical wires in your home. These overloads are often caused by faulty appliances. When an overload occurs, the fuse melts before the wires can overheat, which reduces the risk of fire. Circuit breakers will often trip quicker and more importantly they can be reset to help diagnose and remove faults

  1. Always replace a blown fuse with the correct fuse wire. Never use fuse wire that is heavier than the recommended gauge.
  2. Never use any other type metal or wire.
  3. If fuses keeps blowing, or a circuit breaker keeps tripping, check that your appliances are not faulty.
  4. If fuses continue to blow, or circuit breakers continue to trip after appliances are unplugged, there could be a problem with your wiring. Contact a licensed electrician immediately.

Safety switches

Safety switches look similar to circuit breakers, but they provide extra protection from electric shock. Safety switches monitor the flow of electricity and if any irregularity is detected, the electricity supply is immediately cut off.
Homes with children or backyard workshops should consider installing safety switches to reduce the risk of electrical accidents. New homes are required to have safety switches installed. Licensed electrical contractors can install safety switches in older homes at a reasonable cost. You can also purchase portable safety switches for appliances and extension cords. Useful particularly when using power tools outside ie Electric Lawnmowers, Hedge trimmers, Drills, circular Saws etc

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Of course the best way is to ensure that your appliances are not hazardous in the first place. Tested & True ~ test & tag comes to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommendations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568..

Note: We also do emergency and preventative maintenance of Switchboards and Mains Wiring

Tested & True ~ test & tag  Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform static testing class 1,2 & M RCD testing, Earth Leakage Detection, 3 phase run testing and logs results as you test. all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australian Standards ensuring that you get Quality Service at a competitive price.

Call Now Mobile 040 7605568

Visit us at

www.testedandtrue.com.au

or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide August 2013

Be Safe This Winter with these Electrical Safety Tips

WINTER IS NEARLY HERE!

Time to pull on the Uggies and put those warm Trackie Dacks on (Tracksuit/Sweat suit) and get out you favorite electrical heating appliance… aah Cosy, Warm …and Safe !?! (well you’d hope)

Statistics show that sales of electrical appliances increase during May. The first winter like chill and we are down at the shops looking for the easiest  and sometimes the cheapest way to warm ourselves… Then at that point; it is a Good time to review safety tips on buying and using electrical appliances.

Large electrical appliances are a major cause of electrocutions. Make sure appliances are purchased
from reputable dealers and have been certified by Australian standards.  The introduction of cheap/counterfeit electrical appliances products into the marketplace is on the rise. Appliances must comply with the minimum safety requirements contained in Australian Standard AS/NZS 3820:1998. Here below is a tick mark to look for on all approved equipment.

For portable heaters used frequently  during colder months. Following manufacturers’
instructions is the first step in avoiding electrical hazards.

Power boards and extension cords do not provide more power, but increase access to electrical outlets. As we try to meet 21st century power needs in homes and buildings with too few outlets to meet needs, our use of power boards and extension cords increases. Use of  improperly rated extension cords and power boards is among the causes of many  electrical fires each year.

APPLIANCES, ELECTRONICS AND  LIGHTING

If an appliance repeatedly blows a fuse, trips Safety Switch / breaker or has given you an electrical shock, immediately unplug it and have it repaired or replaced. Look for cracks or damage in wiring, plugs and connectors.

Use surge protectors to protect expensive electronics.

Check the wattage of bulbs in lamps and light fixtures to make sure they are the correct wattage. Replace bulbs that have a higher than recommended wattage;
they are a fire hazard. Make sure bulbs are screwed in securely because loose bulbs can overheat.

Halogen lamps operate at high temperatures. Make sure halogen bulbs do not come into contact with curtains, clothing or other flammable materials.

ELECTRIC BLANKETS and SAFETY

Electric blankets should be rolled when stored away. Folding an electric blanket can damage element wires within the blanket.
When using a blanket for the first time after storage, lay it flat on the bed and check for hot spots as it heats up. Only add sheets once you are sure the blanket will operate safely at a maximum temperature.
Electric blankets that are not properly maintained can cause fires.
Avoid using double adaptors or power boards wherever possible.
Older electric blankets might be damaged and may not have the safety features of modern blankets, so consider replacing them.

To avoid disaster, children need to be aware of  improper uses of electric items and the consequences of unsafe behavior. Practicing safe electrical habits early in life will be valuable through out adulthood.

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Tested & True ~ test & tag comes to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standards ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide May 2013

Working Near Power Lines

Working near Power lines here in South Australia

Performing work in close proximity to overhead power-lines or underground power cables can be a hazardous operation. Fatalities and injuries occur every year as a result of unsafe work practices when working near overhead power-lines. All machinery operators and other workers conducting work near overhead power-lines should also be aware of their safety obligations and adopt safe work practices

Practice safe work habits

Before work commences a Hazard Assessment must take place. It is an important task to Identify all electrical hazards, assess the risks, establish control measures and review these periodically. Control measures may include, but may not be restricted to:

  • applying appropriate signage at least 8 to 10 metres either  side of power-lines and using visual indicators such as tiger tails fitted to the power-lines
  • Using ground barriers, where appropriate
  • Informing workers of required work practices.
  • Ensure operators are aware of the height of their machinery in both stowed and working positions.
  • Lower all machinery to the transport position when relocating. Work away from power-lines, not towards them.
  • Exclusion zones:  If the work you and your staff are planning has the potential to encroach into power-line exclusion zones, you should contact SA Power Networks for advice on doing the job safely.
  • Contact  SA Power Networks about placing identifiers on power-lines and power poles at your worksite and any further control measures.

Disclaimer

The Advice in this fact sheet is of a general nature and does not include any current or pending revisions that are available at Safe-Work-SA and SA Power Networks. This Web-blog is not an exhaustive list of all safety matters that need to be considered. Readers of this blog are urged to find the latest information at the following websites of Power Networks SA and Safe-Work SA.**

www.sapowernetworks.com.au/public/download.jsp?id=420

http://www.safework.sa.gov.au/show_page.jsp?id=2354

** For readers in Other States of Australia or Other countries: Please contact your local/state Electrical Utilities Provider and an Occupational Health and Safety Authority in your locality and/or industry.

We at Tested & True ... Do care about all aspects of Workplace electrical safety. Our trained Technicians understand workplace hazards and are ready assess your workplace equipment and remove hazards. On top of all this,we will repair plugs and leads and will even open up equipment to repair it on-site!..ensuring that your workplace is safe and that you stay compliant to Safe-Work_SA requirements.

Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC Pro-Logger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. Ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide January 2013

Why have your Power Tools professionally tested & tagged?

The trend these days is to do it yourself, sure you can attend a TAFE course and learn how to use an Appliance Tester!… But are you sure and certain that you can test an appliance or power tool effectively or even repair one; that would pass retesting and be compliant. It is a question you must explore , I have been Testing & Tagging electrical equipment for nearly 30 years , this began in the RAN when all personal items had to be tested and tagged before coming on board. I have also seen other people testing their own gear and the results of that.

When a business does it own testing I have noted the following attitudes and factors around their testing & tagging routine …  here are the top five..

  1. A tendency to be complacent.. eg I have to use it tomorrow and I have no time to fix it. I will just a beware of those exposed wires. ..or I don’t want upset my fellow coworker by failing his/her favorite appliance it seems to be ok,  so I won’t fail it!
  2. Finding the time…eg “I don’t have time I’m flat doing my own job plus  other company duties eg OH&S committee meetings, Quality Improvement team meetings etc… It tends to go down to the bottom of the list.”
  3. Not keeping up to date with current legislation and Australian Standards… eg “I did my test and tag training 6 years ago, yeah I know all about it, just plug in here press the button and all is sweet! I think you do your tools every 2-3 years just the same time I do the office equipment I reckon that must be right!” (wrong!!)
  4. Lack of electrical knowledge and construction of electrical appliances… this leads to making wrong decisions about the class of the equipment and how a piece of equipment operates and will impact the way its tested and may give a false pass or false fail. Either way not an effective way to test electrical equipment and possibly dangerous if the false pass item is returned to service.
  5. Its a chore or its not important…eg  “No-one has looked at our test & Tag spreadsheet for the last 8 years, No-one has had an accident its all commonsense just do something as you use it.. Its a waste of time” ..etc.

We at Tested & True ... Are trained as Technicians we know the construction of electrical equipment, we understand the need for Electrical testing and are up to date with the latest Legislation and Australian Standards. On top of all this,we will repair plugs and leads and will even open up equipment  to repair it  on-site!..ensuring that your workplace is safe and that you stay compliant to Safe-Work_SA requirements.

Call and ask for a quote. 040 7605568   Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC Pro-Logger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. Ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide January 2013

Work safe when using Power Boards and Extension Leads

Power board safety advice

The practice of overloading power boards with many appliances (particularly large current devices,heaters, urns, portable air conditioners)  and adding other power boards or adapters  to increase capacity are undoubtedly the  major cause of fire at the Home and in the Work Place.

DON’T:

  • Plug in high power devices into power boards, ie Fan heaters, It is far safer to connect these appliances to a wall outlet
  • connect double adaptors to power boards
  • cascade a chain of power boards together, either double up your power outlet on the wall or get another outlet installed.
  • use damaged power boards
  • use power boards in wet areas such as Laundries and Bathrooms
  • use power boards as a substitute for permanent power outlets
  • use power boards in dirty or dusty areas use power boards with shutter covers in these areas.

DO:

  • always ensure that plugs fit firmly in the power board sockets
  • regularly check the power board for any signs of damage, cracking and discolouration
  • keep power boards out of the reach of children and pets
  • allow for adequate ventilation around the power board.
  • make sure you have an RCD or safety switch protected circuit that is supplying the power board
  • consider installing a permanent power outlet so you do not need to use a power board.
  • Have your appliances and power boards regularly inspected, tested and tagged, particularly if you are a business, charity or public organisation with Workers/Volunteers/General public using Power boards and appliances.

Using extension cords safely

DO:

  • always use an extension cord that has earth, active and neutral wires and a 3-pin plug – never use a 2 core flex (two wires only) as an extension cord.
  • ensure that the cord is fully unwound so it doesn’t overheat

DON’T:

  • join extension cords together. If you need an extension cord longer than 25 metres ask a licensed electrical contractor to install a general purpose power point.
  • use extension cords in wet weather or where they could contact water. If your extension cord gets wet, switch it off, and discard it.
  • place extension cords where they can be walked on or driven over. This may damage the cord and expose live wires. You can mount your extension cord on a fixture with a height of 2.5m (8ft) using tape or cable ties.
  • overload extension cords. The maximum load on an extension cord should not exceed 2,300 watts (In Australia that is nominally 10amps at 230 volts supply). Check the labelling on the extension cord to see how many watts it is rated at. Also consider using extension cords are labelled Construction Grade in outdoor and potentially hostile environments.

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… At Tested & True … We come to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standard AS/NZS 3760:2010 ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide December 2012

What Causes a Safety Switch to Trip?

Electrical Safety Switch Tripping possibilities

Electrical Safety Switches  are RCDs ( Residual Current Devices)  that remove the supply to an electrical circuit when the circuit under protection has detected a leakage to earth. The RCD/Safety Switch responds in mere mili -seconds; avoiding an unsafe condition and thereby potentially preventing electrocution or Fire hazard.

Possible Causes Of Safety Switch/RCD Tripping

Faulty appliance – unplug all electrical appliances, does the RCD reset OK? If the RCD resets OK plug the appliances back in one at a time. Reset the RCD as you plug each appliance back in to find the faulty appliance.

Items with motors or pumps starting – many items with motors or pumps, for instance showers and pond pumps, cause momentary electrical spikes that are big enough to trip RCDs. Seek advice from a qualified electrician.

Older washing machines – aging washing machine heating elements can cause momentary electrical spikes that are big enough to trip RCDs.

Certain wash cycle phases – some cycles of the washing machine, for instance the spin cycle, can cause momentary electrical spikes that are big enough to trip RCDs.

Certain dishwasher cycles – some parts of the dishwasher cycle draw a lot of current, a faulty component, for instance the motor, can trip an RCD.

Overloading a washing machine – too many items in a washing machine can cause certain wash cycles, for instance the spin cycle, to trip an RCD.

Fridges and freezers cooling – the fridge or freezer cooling motor starting.

Turning an heating element on after a long time of being off – moisture in heating elements can trip an RCD, for instance in a sun bed or electric fire. Try resetting the RCD a few times so that the heating element can cause the moisture to evaporate.

Moisture in outside electrical distribution boxes – remove the supply and dry the distribution box. Check the weather seals have not perished.

Moisture in outside electrical sockets – remove the supply and dry the electrical socket. Check the weather seals have not perished.

De-frost timer on a fridge or freezer – a faulty defrost element on a fridge or freezer can cause ‘nuisance’ RCD tripping.

Water heating elements – faulty water heating elements can cause nuisance RCD trips when thethermostat tells them to heat the water.

Moisture in wiring – moisture in the electrical wiring is a common cause of RCD trips. Have you just emptied a bath? Taken a shower? Is it raining – rain can get into the electrical wiring under the floors or in the loft.

As you may have found this list contains certain  conditions that may give clue to an RCD tripping. In most cases this concerns appliances or situations that involve at least one or a combination of  three conditions 1) Moisture leaking electricity to earth in the appliance or premises wiring. 2) A heating element that is either faulty or drawing sudden electrical surges. 3) An appliance with an electric motor that is either faulty or drawing sudden electrical surges.

If you have trouble sourcing constant or intermittent RCD/Safety Switch Tripping then Contact us and we can send a Qualified Electrician around to check it they can source and fix it on the spot.

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At Tested and True …We test Safety Switches as well as other electrical testing services. We come to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standard AS/NZS 3760:2010 ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide November 2012

Safety Switch: Your Best Investment in Electrical safety

Safety Switch 101

The best single safety investment you can make for your Workplace or dwelling is to buy a Safety Switch. Installing a Safety switch is the most effective method of preventing injury or death caused by electric shock. A safety switch works by detecting tiny differences in current through electrical wiring, and it can detect a potential path to earth. Take the example of a person holding a faulty appliance that has an electric charge thereby providing a path to earth. A truly effective Safety Switch will detect that leaking electrical path and shut all the power down in mere milliseconds, quite often before the sensation of electrocution is felt, thereby preventing a harmful or potentially fatal electric shock.  Safety switches are Electro-mechanical devices and over time can be subject to failure. They should be tested regularly to make sure they are in working order.

Safety Switches can be prone to trip under certain conditions… There are a number reasons why a safety switch will trip. The Top 5 reasons are:

An Appliance Fault

When an appliance becomes damaged or develops a fault, it may start to leak excess electrical current. This excess current will be detected by the safety switch and cause it to trip. The easiest way to determine if this is the problem is by unplugging all electrical appliances at the power point, resetting the safety switch and then reconnecting the appliances one by one until the faulty appliance can be identified. Always use caution when dealing with possible faulty appliances and if in doubt contact an electrician.

Intermittent or Nuisance Tripping

As the amount of electrical appliances we have in our home increases, so does the likelihood of Nuisance Tripping. If there are a large number of appliances plugged in to the home at one time and a small amount of current leaks from each, the current adds up to become more substantial. This may mean that the safety switch is continuously on the verge of tripping. If there is the tiniest change in electrical current from the electricity company this can push the switch to its limit causing it to trip. This can become more of a problem in older homes where the electrical wiring is not in good condition. Limiting the amount of appliances plugged in at one time can help minimize this type of tripping.

House Wiring Fault

Faulty wiring poses the most threat to our safety and presents the worst fire risk. Fortunately, a safety switch dramatically reduces these risks. All wiring deteriorates over time and can become dangerous, so older houses are obviously more at risk. A safety switch will detect any fluctuation in electrical current caused by damaged wiring and trip, cutting off electricity immediately and stopping the wiring from burning out. A qualified electrician can assess your electrical wiring and may suggest repair or replacement.

Faulty Safety Switch

Sometimes the cause of a safety switch tripping can be the switch itself. As with any electrical appliance, a safety switch can become defective with age or mistreatment. Safety switches should be checked every six months to ensure they are working effectively. A qualified electrician can offer advice on how to do this, or do it for you if you are unsure.

Electrical Storm

An Electrical Storm can also be the cause of a safety switch going off. When lightning strikes your home, power lines or a power station it may cause a power surge which can cause a safety switch to trip. If this occurs, it is best to wait until the storm passes before resetting the switch. If in doubt always consult an electrician.

Without the right safety equipment and safety precautions, electricity can be deadly. Always check with an electrician if you are unsure why your safety switch has gone off.

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At Tested and True …We test Safety Switches as well as other electrical testing services. We come to your work place at a time convenient to you. We can do an assessment of your Electrical Hazards it can be conducted at the same time as we test and tag your Electrical Equipment. We provide a Full Report with recommedations to clear up current Hazards and how to prevent future risks. Call and ask for a quote. 040 7605568 Tested & True ~ test & tag Adelaide uses the very latest in Portable Appliance Testing…The STC ProLogger 2 it can perform RCD testing, Earth Leakage Detection and Run Testing all in one neat piece of equipment. On top this all our Technicians are Trained to National Standard UEENEEP008 in test & tag operations by Intertag in Sydney NSW, all our Equipment is in good repair and in Calibration. Most of all we pride ourselves on our Knowledge of OH&S legislation and the current Australiand Standard AS/NZS 3760:2010 ensuring that you get Quality Service at a competitive price. Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au or our Newsletter http://testedtruenewsletter.blogspot.com/

Peter Hill Manager , Tested & True ~ test & tag Adelaide August 2012