• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

risks of electricity

Extracts from this document...


WHAT ARE THE RISKS FROM ELECTRICITY? Harm can be caused to any person when they are exposed to 'live parts' that are either touched directly or indirectly by means of some conducting object or material. Voltages over 50 volts AC or 120 volts DC are considered hazardous. Electricity can kill. Each year about 1000 accidents at work involving electric shocks or burns are reported to the Health and Safety Executive (HSE). Around 30 of these are fatal, most of them arising from contact with overhead or underground power cables. WHO IS MOST AT RISK FROM ELECTRICITY? Anyone can be exposed to the dangers of electricity while at work and everyone should be made aware of the dangers. Most electrical accidents occur because individuals: * are working on or near equipment which is thought to be dead but which is, in fact, live * misuse equipment or use electrical equipment which they know to be faulty. ...read more.


Also, contact with live parts can cause shocks and burns. Fire Electrical faults can cause fires. This is particularly true where the equipment contains a heat source (e.g. heaters, including water heaters, washing machines, ovens, heat-seal packaging equipment). Flammable or explosive atmospheres Electricity can be a source of ignition in a potentially flammable or explosive atmosphere, e.g. in spray paint booths or around refuelling areas. WHERE AND HOW ELECTRICITY IS USED The risks from electricity are greatest in harsh conditions.In wet conditions, unsuitable equipment can easily become live and can make its surroundings live. While outdoors, equipment may not only become wet but may be at greater risk of damage. In cramped or confined spaces with a lot of earthed metalwork, such as inside tanks, ducts and silos, if an electrical fault develops it can be very difficult to avoid a shock. TYPES OF EQUIPMENT IN USE Some items of equipment can also involve greater risk than others. ...read more.


Reduce the voltage: Using lower voltages can reduce or eliminate the risks of electric shocks and burns:. Use Residual Current Devices (RCDs) for extra safety: An RCD can provide additional safety. An RCD detects some faults in the electrical system and rapidly switches off the supply. MAINTAINING ELECTRICAL EQUIPMENT AND INSTALLATIONS. If a fault is identified, the item should be removed from use and repaired before being used again. Staff should be trained to carry out these simple visual checks. There should also be a system where formal visual inspections are carried out the legislation requires employers to decide on the frequency of testing based on their risk assessment. WORK SAFELY Make sure that: * suspect or faulty equipment is taken out of use immediately * people working with electricity are competent to do the job. * suspect or faulty equipment is kept secure until examined by a competent person * tools and power socket-outlets are switched off before plugging in or unplugging * equipment is switched off and/or unplugged before cleaning or making adjustments * where possible, all electrical appliances are switched off at the mains at the end of the working day. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Physical Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Here's what a star student thought of this essay

4 star(s)

Response to the question

The candidate gives a very in depth response, they have included the main risks and how these occur and have given safety information relating to the use of electricity. In addition to this they have clearly undergone independent research as ...

Read full review

Response to the question

The candidate gives a very in depth response, they have included the main risks and how these occur and have given safety information relating to the use of electricity. In addition to this they have clearly undergone independent research as they mention the legal obligations involved when dealing with electricity and they have provided information regarding the maintenance and insulation of electrical equipment. This is a good way to develop your essay and it shows a thorough understanding of the set topic.

Level of analysis

This piece of writing is in the form of an informative leaflet rather than an essay therefore the fact that there is no conclusion is irrelevant, that said the information provided is accurate and the candidate has given a great deal of detail. In addition to this, the candidate has sensibly included a link to the resources they have used when researching information for this piece of work. It is always a good idea to include references to any sources you have used.

Quality of writing

The candidate often uses bullet-points which is I feel is appropriate for this type of work as the candidate is listing safety features and specific legal obligations, sometimes important information is easier to see if listed this way than if it were in a standardised paragraph. Furthermore scientific terms are used accurately and there no errors with spelling punctuation or grammar.

Did you find this review helpful? Join our team of reviewers and help other students learn

Reviewed by pictureperfect 08/07/2012

Read less
Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Physical Chemistry essays

  1. Drug: Antacid Effectiveness Analysis To determine the neutralizing ability of antacids in different ...

    100ml volumetric flasks * Electric balance * Mortars and pestles * Hot plates * White tiles * Thermometer * Stop watch * Dropper * Conical flask * Distilled water in wash bottle * Tap water. * Burettes * Filter funnel * Labels * Glass rods * Stands and clamps *

  2. The principles of colorimetry - testing the composition of a paperclip

    salts). 5. Pour the solution the solution into 100cm3 volumetric flask using a small funnel. Rinse the remaining solution from the beaker and funnel into the flask with distilled water and add further more distilled water to the flask till the graduation mark.

  1. Science at Work Research . Dulux Paints, a Hospital, a leisure centre and a ...

    Making the paste: Pigment manufacturers send bags of pigments to the paint factory where it is them premixed with the resin, the solvent and additives to form a paste. Dispersing the pigment: The paste mixture is then routed to a sand mill (shown below)

  2. Outline and examine some uses of different metals through history, including contemporary uses, as ...

    layer is an impervious layer that forms on a metal surface and thus prevents any corrosion of the metal beneath. 1. Outline the relationship between the relative activities of metals and their positions on the Periodic Table. 1. In general as you go across the period reactivity decreases and as you go down a group reactivity increases.

  1. AQA As Applied Science Unit 3. Colorimetry experiment on Ribena juices

    If I was to fall or anyone else was to I will call for help from a teacher, if I feel too much pain I will then go seek first aid to make sure everything is ok. I will make sure that the graph paper is used and placed appropriately to avoid any harm from occurring.

  2. How does the temperature of water affect the amount of dissolved oxygen it contains?

    The Mn(SO4)2 then converts the iodide ion (I-) to iodine (I2). Under controlled conditions, the amount of sodium thiosulfate titrated, is equivalent to the amount of dissolved oxygen present in the sample. REAGENTS: 1. Manganese sulfate solution * 2. Alkaline potassium iodidesodium solution * 3.

  1. Fertilizers and testing for nitrates.

    Fertilizer adds nutrients and texture to soil that needs to provide nutrients to trees, vegetables, herbs, shrubs and flowers. There are several ways to categorize fertilizer, and the most basic is whether it is organic or inorganic. It also can be classified according to its ingredients, whether it is solid

  2. Acids and Bases in the World - acid rain, chlorine in pools and cleaning ...

    Too basic can cause scaling on the pool surface and plumbing equipment and cloudy water 4. However both being too acidic or basic will have an effect on how well Chlorine will work, if its too acidic the Chlorine will dissipate too quickly, too basic and it wont destroy pathogen as well 5.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work