Understanding the Danger of Electrical shock

The 2  Major hazards attributed to electrical equipment and wiring are electrical shock and fire. Electrical shock occurs when the body becomes part of the electric circuit, either when a part of your body comes in contact with both of the active component (Active/Neutral)wires of an electrical circuit, or one wire of an energized circuit and the Earth wire (or grounded wire)…., or a foreign conductive object that has become energized by contact with an electrical conductor.

The severity and effects of an electrical shock depend on a number of factors, such as the pathway through the body, the amount of current, the length of time of the exposure, and whether the skin is wet or dry (ie sweat). Water is a great conductor of electricity, allowing current to flow more easily in wet conditions and through wet skin.

240V can kill!The effect of the shock may range from a slight tingle to severe burns to cardiac arrest. The chart below shows the general relationship between the degree of injury and amount of current for a 50-cycle hand-to-foot path of one second’s duration of shock. While reading this chart, keep in mind that most electrical circuits can provide, under normal conditions, up to 20,000 milliamperes of current flow. So only a very small percentage of current leaking to earth can cause harm if touched by your body… as little as 30 milliamperes of current can KILL !!!

Current
Reaction
1 Milliampere Perception level
1-5 Milliamperes Slight shock felt; not painful but disturbing
6-29 Milliamperes Painful shock; “let-go” range
30-150 Milliamperes Extreme pain, respiratory arrest
151-4,300 Milliamperes Ventricular fibrillation
4,300+ Milliamperes Cardiac arrest, severe burns & even death

In addition to the electrical shock hazards, sparks from electrical equipment can serve as an ignition source for flammable or explosive vapors.

Even loss of electrical power can result in extremely hazardous situations. Flammable or toxic vapors may be released as a chemical warms when a refrigerator or freezer fails. Fume hoods may cease to operate, allowing vapors to be released into the work area.  So take care with your electrical equipment and consider all contingencies in the operation of that equipment.

<<<<<<<<<<<<<<<<<<<<<<<<<< 0 >>>>>>>>>>>>>>>>>>>>>>>>>>>

Of course the best way is to ensure that your appliances are not hazardous in the first place by ensuring that not dangerous electrical currents are present on the external parts of the appliance. We at Tested & True ~ test & tag 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 recommendations 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 Pro Logger 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 Australian Standards ensuring that you get Quality Service at a competitive price.

Call Now Mobile 040 7605568

Visit us at http://www.testedandtrue.com.au located in Lonsdale, South Australia

Peter Hill Manager Tested & True ~ test & tag Manager SA 0407605568 January 2017

National Coverage through the Safety Services Network (SA State Member)

SSN

Peter Hill Manager Tested & True ~ | test & tag | Lonsdale | South Australia |

What you need to do to manage Electrical Risk in the Workplace

Managing electrical equipment and installations

A business needs to ensure that:

  • power circuits are protected by appropriately rated fuses or circuit breakers
  • electrical leads are not arranged so that they are easily damaged, run across floors or doorways, or over sharp edges
  • only leads and tools designed for wet or damp conditions are used in those conditions
  • circuits where portable equipment may be connected are protected by RCDs
  • if any current protective device (RCD or circuit breaker) is triggered, the system is not re-energised until the reason has been identified by a competent person
  • equipment identified as unsafe is disconnected or isolated and labelled as unsafe and not reconnected until it is repaired and tested as being safe
  • regular visual inspections and testing of electrical equipment, including RCDs, occurs. The nature and frequency of inspection and testing will vary depending on the electrical risks.

For further Important and detailed info go to:  http://www.safework.sa.gov.au/uploaded_files/CoPManagingElectricalRisksWorkplace.pdf

 

<<<<<<<<<<<<<<<<<<<<<<<<<<<<< 0 >>>>>>>>>>>>>>>>>>>>>>>>>>>>

WE can give you advice on choosing an UPS or Surge Power board to suit your Requirements…. and 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 recommendations 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 UEENEEP026 in test & tag operations , 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 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 located in Lonsdale, South Australia

Peter Hill Manager Tested & True ~ test & tag Manager SA 0407605568 May 2016

National Coverage through the Safety Services Network (SA State Member)

SSN

Peter Hill Manager Tested & True ~ | test & tag | Lonsdale | South Australia |

So what is tested and what are we looking for when doing a Test and Tag regime?

Many of our clients organise regular test and tagging services simply because it is easier and safer.

A regular program of testing and tagging comprises of: (standard 10/15Amp 3 wire cabled appliance and plugged multi phase equipment)

A visual check to ensure the integrity of the Electrical cord and Appliance construction

  • The Technician looks for Cuts and breaks in appliance and power cables may present as an  electrical hazard.
  • An inspection of the integrity of the appliance housing looking for cracks and holes which may expose personnel to an electrical hazard.

A series of electrical tests are then conducted to detect the unobservable faults not found by the visual inspection process, and forms an integral part of the inspection/testing process.

The equipment is turned off to allow the technician access to the appliance plug. All tests are performed by disconnecting the appliance from the building power and connecting the plug to an insulation tester or a Portable Appliance Test-set built for the purpose of performing the tests automatically and uniformly. These Tests are:

  1. Earthing continuity test: (specifically for metal shrouded appliances) to ensure there is adequate connection between the earth pin on the plug of the appliance and the metal cover shrouding the appliance.
  2. Insulation resistance test: to ensure that no path exists with the appliance/lead for electrical current to transit from the active wires to earth.
  3. Continuity Loop test: to make the sure that the active circuit which powers the appliance has a good solid connection and in no way presents as an electrical hazard.
  4. Polarity Test: (only for items which distribute power: leads, power-boards, adapters etc) to ensure that the wires of an extension cord/power board appear the same order of connection at the plug as the do at the socket end.

Other Equipment Tests Include:

 RCD test to test the tripping time of a RCD to ensure your safety switch or RCD does work properly and switches off in a fault situation quick enough to save personnel from Harm.

3Phase Test: usually high powered workshop and building site equipment with multiple active wire connections (tests performed on 3phase test are similar to that of standard appliance tests outlined above)

Emergency Exit sign test: Tests the ability for an emergency exit sign to stay on when power is off 90 minutes is the expected time, if it fails to reach the expected time then the circuitry/ battery will be in need repair or replacement .

That is it, in a very basic overview if you need to know more please either contact us or contact Safe-Work SA (South Australia) http://www.safework.sa.gov.au/  1300 365 255 or The Workplace Safety Authority in your local area.

<<<<<<<<<<<<<<<<<<<<<<<<< 0 >>>>>>>>>>>>>>>>>>>>>>>>>>>

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 recommendations 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 UEENEEPOO8 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 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  also National Coverage through the Safety Services Network (SA State Member)

SSN

Peter Hill Manager Tested & True ~ | test & tag | Lonsdale | South Australia |

 

Uninterruptable Power Supplies (UPS) Buying Advice

Uninterruptable Power Supplies (UPS) Buying Tips

Summers here! … and Summer In Australia means Power Shortages and often leading to Blackouts (no power) or brownouts (low power ie low voltage and current) sometimes these are planned by the Electricity Suppliers to share the extra load during Hot Days… sometimes they occur unplanned because of overloaded or failed equipment either way Your expensive computer or in the case of a business your Server and the data in it could be rendered useless. UPS is the easiest way to protect your hardware and data. For a better and more thorough protection, you need a UPS. It isn’t intended to power you through a blackout though. For that, you would need a generator. Rather, a UPS will let you save your work and power down safely.

A UPS is designed to protect your computer you against such power fluctuations and more importantly, power up your computer even when there is no electricity. Here are a few tips that should help you make a more informed UPS purchasing decision.

  1. Power Outlets

When purchasing a UPS, make sure the power rating is right for your equipment. If you buy one that is rated too low, you might run out of juice before you can power down. Most UPS devices are designed to provide 10 minutes of power. When selecting a UPS, you need to look at the VA rating — or amps multiplied by voltage (240v). The amp rating should be listed on your computer. Add up the VA ratings of everything you will connect to the UPS, then purchase a UPS with a VA rating 20-25% higher. If you are a home PC user, look for a UPS with a 1000-1400 VA rating.

  1. Choose a good length Of Backup time

Don’t expect your UPS to keep your PC running all day. Most UPSes are engineered to provide you a backup time of around 10 to 20 minutes. What they essentially do is save your work when there is a power outage and avoid an abrupt shutdown that could mess up your computer settings. Choose the UPS that meets your backup time demands.

  1. Other features of a UPS

When you are buying a UPS, ask the vendor about more features than just power. This will help you in finding the UPS which has that one additional option that will help you in your buying decision. Of course, the best feature is Automatic Voltage Regulation (AVR) which isolates your PC from voltage fluctuations that lead to computer disturbances. A UPS with AVR conditions the incoming power before being fed to the PC’s Switch Mode Power Supply (SMPS). Most UPSes also automatically initiate a scheduled shutdown sequence when the power is lost, after saving your work, to prevent damage to the computer hardware.

  1. Warranty

Obtain a guarantee before buying a UPS. Undue delays in replacements can affect business. Some vendors offer onsite warranties, where they replace the batteries at your place. If you are planning to use the UPS at work, go for a longer warranty term.

  1. Battery replacement

The general rule is three years. But if you are experiencing low backup times more frequently, you could get the battery replaced immediately if it’s under warranty. If you are facing no problems, expect your battery to work for three years. Its advisable to buy replacement battery cartridges while you are buying the UPS. These cartridges will breathe new life into UPS systems suffering from expired or weak internal batteries.

  1. Power up

Contrary to the myth, its perfectly fine to leave the main switch on even when you are no longer working and the computer is shut down. However, its best to pair your UPS with a voltage stabilizer for additional safety.

  1. Software reporting

The software provided with the UPS is not always accurate with its reports. So don’t listen to it when it says your battery needs to be replaced even though you’ve never experienced low backup times. These faulty reports shouldn’t worry you because they may be trying to get you to purchase the company’s product more frequently (a common problem with print cartridges.) The software is good at its essential function of shutting down the PC properly and saving your work, but you may be the best option to determine whether its time to change the battery.

  1. Tips and tricks

Do not overload the UPS by, for example, connecting external devices like the printer, scanner and the fax machine. NEVER plug a printer into the battery backup system. To optimize the charge of your batteries, you should discharge them completely at least once a month. And lastly, make sure the UPS is properly grounded all the time to prevent any electrical disasters.

  1. Shop around compare specifications against Price..

Standby UPSs are available in the range of 300VA to 500VA for office use, and up to 2KVA to 3KVA for workstations and large servers. Inexpensive standby UPSs ranging in price from $50 to $125 are used by millions of users of personal computers all over the world. Some of them include brands like Belkin, American Power Conversion (APC), Cyber Power, Data Shield, EFI, NCR, SAFE, Pacific Power, Sola and UP Sonic.

Conclusion

Bsically, there are two kinds of UPS systems. The Standby Power System (SPS) and Online UPS System. If you are a home user, go for the relatively cheaper SPS. The price of an online UPS is three to five times that of a standby UPS with the same power rating. For servers, buy an online UPS (online means outgoing power is always drawn from the battery). Expect to pay between $150 and $1,000 for an online UPS. The higher the VA rating, the more you’ll pay. You might also want to consider buying one with advanced-battery features. These features include intelligent-battery management, battery-replacement indicator, and hot-swappable user-replaceable batteries.

Remember

An UPS isn’t intended to power you through a blackout.. For that, you would need a generator. However an UPS is a cost effective way to let you save your work and power down safely.

<<<<<<<<<<<<<<<<<<<<<<<<<< 0 >>>>>>>>>>>>>>>>>>>>>>>>>>>

Of course the best way is to ensure that your computer and UPS systems are not hazardous in the first place by ensuring that no dangerous electrical currents are present on the external parts of the appliance or hidden faults inside. We at Tested & True ~ test & tag 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 recommendations 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 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 Lonsdale SA November 2015

Home Fire Safety Electrical

In Australia hundreds of fires are caused by potential electrical hazards found in the home apart from fitting a smoke alarm would it not be best that you can reduce these hazards in the first place!

  • Replace or repair damaged or loose electrical cords.
  • Avoid running extension cords across doorways or under carpets.
  • In homes with small children, make sure your home has tamper-resistant (TR) receptacles.
  • Consider having additional circuits or outlets added by a qualified electrician so you do not have to use extension cords.
  • Follow the manufacturer’s instructions for plugging an appliance into a receptacle outlet.
  • Avoid overloading outlets. Plug only one high-wattage appliance into each receptacle outlet at a time.
  • If outlets or switches feel warm, frequent problems with blowing fuses or tripping circuits, or flickering or dimming lights, call a qualified electrician.
  • Place lamps on level surfaces, away from things that can burn and use bulbs that match the lamp’s recommended wattage.
  • Make sure your home has a Safety Switch or Separate RCD breakers for power outlets especially in the kitchen bathroom(s), laundry, basement, and outdoor areas.

We can check your Electrical safety and test your fire Alarms and safety Switches

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/ … September 2015

Your Electrical SwitchBoard your backup defence for Electrical 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 and RCD devices

Safety switches or RCD device look similar to circuit breakers and will have a test button to provide a test for the correct earth tripping of the device. The purpose is to 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. It is imperative that commercial premises have them installed and tested regularly.. New homes and Commercial premises 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  and these portable RCD should also be tested on a regular Basis!

<<<<<<<<<<<<<<<<<<<<<<<<<< 0 >>>>>>>>>>>>>>>>>>>>>>>>>>>

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 September 2015

Electrical Risk in the Workplace

Electrocution incidents can be fatal, since the year 2000 25-30 people die from Electrocution in Australia (http://www.erac.gov.au/ ) 90 percent of these deaths involve non Electrical workers! Many more are seriously injured while non-fatal shocks can result in serious and permanent burn injuries to skin, internal tissues and damage to the heart depending on the length and severity of the shock.

Electric shocks from faulty electrical equipment may also lead to related injuries, including falls from ladders, scaffolding or other elevated work platforms. Other injuries or illnesses may include muscle spasms, palpitations, nausea, vomiting, collapse and unconsciousness. Those working with electricity may not be the only ones at risk. Poor electrical installation and faulty electrical appliances can lead to electric shock to others at or near the workplace.

How can I avoid electrical hazards?

Dependant on the context and conditions, but may include for example:
  • Ensure only appropriately licensed or registered electricians carry out electrical work
  • Switch off electricity where possible before working on equipment
  • Ensure electrical equipment is in good working order (testing and tagging)
  • Use battery operated tools rather than mains power tools where possible
  • Remove damaged, unsafe electrical equipment or cords from the workplace
  • Ensure tag out and isolation procedures are in place and used
  • Use residual current devices (or safety switches) with portable equipment (as per the WHS Regulations)
  • Don’t overload power sockets. Use power boards not double adaptors
  • Meet electrical safety standards

The best way is to meet electrical safety standards is to have your appliances tested and tagged…

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. 0407605568 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 2015