health and saftey issues week 8

1. CO2 Fire Extinguisher  because Dry powder fire extinguishers are the best type of extinguisher for use on flammable liquids and gases.  Certain types of dry powder extinguishers are specially designed for use on particular fire types, and have powders geared towards dealing most effectively with these specific situations.

2. it is necessary to use ant-static equipment incase of an electric shock Always use an anti-static wrist strap when working on a computer except when working on monitors: more about that. One end is an elastic band that fits around your wrist and which is connected to an alligator clip by a wire. The clip connects to a metal part of the computer chassis, which equalizes the voltage between you and the computer, thus avoiding static sparks.

3. If you follow the instructions about how to unpack a package with anti-static instructions there is no risk, otherwise you might get an electric shock; hope not across the heart; it could be fatal even with a fraction of one amp.

4.The cable between the plug and appliance is vulnerable to physical damage, which  can lead to a breakdown of insulation between the internal conductors (live,  neutral and earth) causing a short-circuit current to flow. Without the fuse in  the plug this could lead to fire. The fuse senses the short-circuit current and  interrupts it before damage can occur.

5.The Electricity at Work Regulations 1989 came into force on 1st April 1990; their purpose is to require precautions to be taken against the risk of death or personal injury from electricity, in work activities.

In the main, the Regulations are concerned with the prevention of danger from electric shock, electric burn, electrical explosion or arcing or from fire or explosion initiated by electric energy.

All places of work covered by the Health and Safety at Work Act (shops, offices, factories, workshops, farms, garages, sports and entertainment centres, etc.) are covered under these new Electricity at Work Regulations.

The regulations convey principles of electrical safety, as applied to any electrical equipment, any work activity having a bearing on electrical safety – in other words they all apply to all electrical systems and equipment, in connection with work activities, whenever manufactured, purchased, installed or taken into use, even if its manufacture or installation pre-dates the regulations.

6. Computers, televisions, lab analyzers, EKG monitors, and other  types of biomedical electronic equipment may contain hazardous materials.  Of particular  concern are heavy metals such as lead (used in cathode ray tube [CRT] monitors and lead solder),  mercury (used in the lights behind Liquid Crystal Displays [LCD]), and cadmium (used in batteries,  resistors, CRTs, and plastic components), chlorinated plastics (PVC) used in cable wiring,  brominated flame retardants (used in plastic computer housing and circuit boards).


  • Large household appliances e.g. fridges, cookers, microwaves, washing machines and dishwashers
  • Smallhousehold appliances e.g. vacuum cleaners, irons, toasters and clocks
  • IT and telecommunications equipment – e.g. personal computers, copying equipment, telephones and pocket calculators
  • Consumer equipment e.g. radios, televisions, hi-fi equipment, camcorders ad musical instruments
  • Lighting  equipment e.g. straight and compact fluorescent tubes and high intensity discharge lamps
  • Electrical and electronic tools – e.g. drills, saws and sewing machines, electric  lawnmowers
  • Toys, leisure and sports equipment e.g. electric rains, games consoles and running machines
  • Medical devices e.g. (non infected) dialysis machines, analysers, medical freezers and cardiology equipment
  • Monitoring and control equipment e .g. smoke detectors, thermostats and heating regulators
  • Automatic dispensers e.g. hot drinks dispensers and money dispensers





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