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.

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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 to look for when Buying a Smoke Alarm

 Which Type Of Smoke Detector I should buy?

Photoelectric or Ionisation?

The latest advancement In Smoke Detection Technology is the Photoelectric alarm they are widely regarded as being superior to ionisation alarms in most aspects. Not only do they respond faster than other alarms  and are less likely to cause annoying false alarms. Photoelectric alarms are particularly effective at detecting smouldering fires, which provides the earliest possible warning of a fire developing in an enclosed area.

If a smoke alarm has symbol a radioactive warning symbol, then it ionisation smoke alarm.

How many do I need to buy?

It is generally recommended that you should install smoke alarms in all rooms where people sleep and the hallways leading to sleeping areas.

In most states of Australia residents must have at least one working smoke alarm installed on each level of their home. This includes owner occupied, rental properties, relocatable homes, caravans and campervans or any other residential building where people sleep. Contact your Local Fire Authority

Are there approved smoke alarms?

The Australian Standard symbol on the packaging shows if the alarm is approved and safe.Smoke Alarms must meet the requirements of Australian Standard AS 3786.

Hard-wired or battery operated?

In some circumstances your alarms cannot be hard-wired, then it is recommended that these photoelectric alarms run on 10-year lithium batteries. Inbuilt 10-year lithium batteries last as long as the smoke alarm so you don’t need to worry about replacing them every year – you simply replace the entire smoke alarm unit once every 10 years.

Hard-wired smoke alarm

A hard-wired smoke alarm consists of a 240-volt smoke alarm connected to a home’s electrical system with a battery back-up power supply.

Battery operated smoke alarm

Most smoke alarms come with a battery but not all batteries are the same:

  • 10 year lithium batteries: These batteries are recommended and last as long as the smoke alarm.
  • Lead or alkaline batteries: Need to be replaced yearly.

Where can I buy them?

Available at most major supermarkets and hardware stores buy approved smoke alarms meeting Australian Standard AS 3786.

Strobe light and vibrating pad alarms

Strobe light and vibrating pad smoke alarms are available for people who are deaf or hard of hearing. For more information contact the Deaf Society in your local state of Australia

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At Tested & True we can help you advise install and maintain smoke detectors for your workplace and residential requirements!

Call and ask for a quote. 040 7605568..At Tested and True …we come to you at a time convenient to you. We can do an assessment of your Smoke Alarm needs. We will provide a full service and report  for your Fire Safety Integrity. 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 |

 

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!

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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 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

Electrical Risk Assessment in test & tag

Electrical Risk Assessment is a necessary step prior to determining a Test & Tag interval of testing

After the work area has been determined as either electrically non-hostile or hostile, a regular inspection schedule can be developed. It is recommended that regular workplace safety inspections are synchronised with the checking periods which are required for electrical equipment.

Non-hostile electrical environment This is a workplace that is dry, clean, With equipment and leads are away from danger from sharps and flexing  or anything else that may result in damage to electrical equipment or the flexible supply cord. In accordance with Safe Work Australia: Code of Practice – Managing Electrical Risks in the Workplace, electrical equipment used in electrically non-hostile operating environments does not require tagging. It is sufficient to visually inspect equipment and cords for damage prior to use and thereafter on a regular basis.

Hostile electrical environment This is a workplace where the equipment or appliance may be subjected to events or operating conditions which could result in damage to the equipment or a reduction in its expected lifespan. What is a Hostile Environment? Is the electrical equipment, when used in normal operation, exposed to any of the following items that might result in damage to the equipment or reduction in its expected life span:

  • Mechanical damage?
  • Moisture?
  • Heat?
  • Vibration?
  • Corrosive substances?
  • Dust?
  • Sharps?
  • Grease/Oil?

If ‘YES’ to any of the above, the environment is considered ‘hostile’ according to the Australian Standards AS/NZS 3760  for testing & tagging.. Just as a general guide see the table Below… It is taken from the Australian Standards AS/NZS 3760  for testing and Tagging and it forms the basis of State and Industry testing and tagging requirements. Below is a key for identifying the categories in the table and the type of environment in which they are found.

coloured text = Intervals for retesting in a hostile environment.

coloured text = Intervals for retesting in a Non hostile environment.

coloured text  = Intervals for retesting for specific equipment/circumstances without regard to the environment it will be used.

Type of environment &/or equipment Interval between inspection & tests
Equipment including Class 1 equipment, Class II equipment, cord sets, cord extension sets & EPODs Residual current devices (RCDs)
Push-button test – by user Operation time&push-button test
Fixed Portable
Factories, workshop, places of manufacture, assembly, maintenance or fabrication. 6 months Daily use, whichever is the longer 6 months 12 months 12 months
  Environment where the equipment or supply flexible cord is subject to flexing in normal use OR is open to abuse OR is in a hostile environment 12 months 3 months 6 months 12 months 12 months
Environment where the equipment or supply cord is NOT subject to flexing in normal use & is NOT open to abuse & is NOT in ahostile environment 5 years 3 months 6 months 2 years 2 years
  Residential type areas of: hotels, residential institutions, motels, boarding houses, halls, hostels accommodation houses & the like 2 years 6 months 6 months 2 years 2 years
Equipment used for commercial cleaning 6 months Daily, or before every use, whichever is the longer N/A 6 months N/A
  Hire equipment Prior to hire Including push-button test by hirerprior to hire N/A N/A
Hire equipment – Inspection N/A
Hire equipment – Test & Tag 3 months N/A 3 months 12 months
  Repaired, serviced & second hand equipment After repair or service which could affect electrical safety, or on reintroduction to service, refer to AS/NZS 5762.

We do the risk assessment for you of  Electrical Hazards taking in environmental concerns 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 july 2014

Surge Power Board Protection 101

We have such a large number of gadgets today and they nearly all have sensitive electronic components particularly for our entertainment and computing equipment. We are told that we need to protect that equipment for Electrical surges from our mains power supply. The easiest and most convenient way is to buy a Surge Protected Power Board … However, not all surge protectors are alike, and some even put your gadgets at risk. So what is the Difference between a Surge Protected Power Board and a plain power board? Firstly, not every power board is a surge protected power board. It may sound basic, but it’s a fundamental piece of knowledge you’ll need. While a power board just splits your outlet into multiple ports, a surge protector is designed to protect your computer, TV, and other electronics against power surges and any interference or noise on your power line. Power surges may not be an everyday event, but they’re common enough that they can damage your equipment. What to look for: Look for a Label that states its Surge Protected and also look for a led light on the board which indicates that it the Surge Protection is working when the board is plugged in. This will act as a check if there has been major surge event in the Mains power supply.  If the led light goes off the Surge protection may be blown and it will indicate that it is no longer working even though the board is still supplying power to connected devices. Buy one with right number of outlets they come in typically 6,8,12 outlets (this avoids connecting many boards together compromising your protection and potentially overloading power to appliances from the power-point.) DO NOT buy single a single outlet device they are usually cheap and provide poor protection your expensive appliances. Do not connect High current appliances to a Surge Protected power Board they are designed for sensitive Low Power Devices (Tvs, DVD Players, Game Consoles, Hi-fi, Computer Devices etc) for example, do not connect Kitchen appliances, Air Conditioners, Tools and Workshop equipment to a Surge Protected Power Board Always check the design specifications

  • 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 200joules. For better protection, look for a rating of 600 joules or more.
  • Clamping voltage. The clamping voltage is the voltage that will trigger the surge protector—or essentially when the surge protector wakes up and starts absorbing energy. Look for something around 400 V or less. Lower is better here. Finally, see if response time is listed in the product details—it’s good to know, and lower is better
  •  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 20 nanoseconds.
  • As mentioned before,It is best to look for a Surge protected board with an indicator light that tells you if the protection components are functioning

Importantly: Make sure you’re informed before you buy, and read the back of the box or the product details before you buy anything. You don’t want to invest in a surge protector only to find out that it’s far too weak to protect your devices, or it’s a surge protector in name only. Remember,  the most expensive is not always the best. The best thing to do is figure out what you need to protect and buy accordingly.

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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 April 2014