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System Choice.

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System Choice For this Case Study I am going to investigate visual communication systems involved in electrical safety. Peguform UK Limited, a car polymer components manufacturer situated on Kimpton Road, Luton, will be used to investigate within the context of an industrial environment. Visual communication systems are used thoroughly at Peguform UK Limited to ensure a potentially fatal energy source is harnessed correctly and safely, therefore keeping injuries to a minimum. In the wider context, visual systems are a key factor in working with electricity from a health and safety perspective throughout the industrial world. An investigation using Peguform UK Limited may reveal downfalls or model systems that could lead to improvements. Objectives The objectives of the study will be to reveal downfalls, which can be improved, or model systems that could lead to improvements in safety which are possible for utilisation throughout industry. Analysis of the Main Elements of the System For this case study, the main elements of the system can be grouped into four main areas: Safety Signs Safety signs are prominent in industry and have direct fitness for purpose in conveying warnings and instructions. The materials they are made from, size, colours used and positioning all relates to the applicability of safety signs. They also rely strongly on human interpretation. Peguform make use of various signs within the plant. Information needed: Information on materials, size, colours used and positioning will be required to see if they are fit for their purpose and convey their electrical safety message through visual communication systems. This information is important to the objectives as signs are utilised both at Peguform and in extended industry and if used correctly, can lead to safety improvements. Colour Coding A principle part of working with electricity is colour coding. This is true for Peguform and the wider industry. Various colour coding systems convey information by relying on the interpretation of specific colours by the user. ...read more.


Industrial Sockets All sockets on the factory floor of Peguform follow a European standard colour coding system based on the voltage the power point delivers. Also, the extension leads from the sockets comply with the colour coding. The visual communication system is as follows. Purple = 24V Yellow = 110V Blue = 240V Red = 415V Minimisation Due to technological advances, components involved in electricity can be made increasingly smaller. This has led to the recent trend of minimisation. Colour coding systems are now required to represent numbering which would otherwise be too small to read easily and therefore safely. The table below indicates how numbers are represented by colour to exhibit information such as voltage and resistance on components and cable bands. Colour Number represented Black 0 Brown 1 Red 2 Orange 3 Yellow 4 Green 5 Blue 6 Violet 7 Grey 8 White 9 Above: a selection of " minimised " components showing the need for colour coding. Marks and Symbols The British Standards Institution is a prominent awarder of safety marks in electrical safety. They are a non-profit making, independent body for the preparation of British Standards. Research into this area follows. British Standard Associated Marks Kitemark: This award displays that BSI has checked the manufacturer's claim that the product complies in every way with the standard quoted and monitors the manufacturer's production system. Mark of the British Electrotechnical Approvals Board: This is a valued award displayed on electrical equipment for being highly safe. Double insulation mark: An appliance having double insulation and/or reinforced insulation throughout is depicted by this mark. It displays the information that there is no provision for earthing. Electrical Graphical Symbols Any electrical plans that are used at Peguform are formed using the visual communication system of graphical symbols. All components and circuits can be represented from the system. A selection of electrical graphical symbols from left to right: earth, fuse and heater. ...read more.


This is due to the design of the plugs and sockets. A plug will not physically fit into a socket unless its voltage value matches that of the socket. Colour coding simply reinforces to the user what voltage is being applied and therefore operates as an effective system. The colour coding system used in minimisation is also already effective. It makes successful use of prior knowledge and familiarity to aid memorisation for those who work with electricity. Evaluation of Marks and Symbols Marks and symbols demonstrate their success by being well recognised and highly valued. Safety has become more necessary as a result of this visual communication system and the vast majority of appliances display some form of safety mark. Hence changes to award marks would hinder safety instead of forming improvements. Graphical symbols for electrical representation also displayed effectiveness as their relatively simple designs and removal of confusion and individual interpretation display their success as a visual communication system. Alterations to the double insulation mark would though improve safety and be possible for utilisation throughout industry.Geen and yellow are traditionally associated with earthing and the inclusion of the colours would further improve the link with earthing and the mark. Proposed improvement to the double insulation mark. Green and yellow would strengthen the relationship with earthing, consequently assisting human use through interpretation. Summary of My Approach to the Study From the decision of system choice and the formation of objectives I was able to research. A range of information was collected from a variety of sources including an actual industrial environment. This information was edited and recorded for analysis and further evaluation. By this process I was able to carryout a study which led to proposed improvements. An aspect that could be improved in future work would be to expand the study industrially. Different industrial sites could be compared and contrasted to obtain the wider picture of visual communication systems in electrical safety. Also future work may benefit from developing the investigation into the wider area of health and safety. ...read more.

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