CGLI 2330 Certificate in Electrotechnical Technology Level 2 Inst Tech: Unit 201 – Working Effectively & Safely in an Electrotechnical Environment
Unit 09 - Electrical Industry
Electrical Industry Unit Aims By the end of the unit participants should be able to: Describe briefly the service provided within the following specialisms a) lighting installations i) computer installations b) power installations j) fibre optics c) emergency lighting k) data infrastructure cabling d) security systems/alarms l) HV/LV jointing e) building management systems m) highway electrical systems f) control systems n) panel building g) instrumentation o) electrical machine drive installations h) electrical maintenance p) consumer/commercial electronics (Syllabus Reference: 1.2.01) State that organisations that have electrotechnical activities can be a) Electrical Contractors g) Panel Builders b) Factories h) Motor rewind & repair companies c) Process Plants i) Railways d) Local Councils j) Armed Forces e) Commercial/Business buildings k) Hospitals and complexes l) Equipment and machine f) Leisure Centres manufacturers (Syllabus Reference: 1.2.02)
Services Provided Areas of work that Electrotechnical people are involved in Lighting installations: Involved with the design of light levels, types and positions of lighting fittings. Power installation: Involved with the distribution of electrical energy within an installation to ensure that energy efficiency and functionality is achieved. Fire alarms and emergency lighting: Designing and installation of systems to ensure that the correct light levels are maintained when power fails and that people can be safely warned about fire. Security systems: Dealing with external light levels for cameras, door entry, burglar alarms, automatic barriers etc. Building management systems: Usually integrated with control systems to enable automatic control of systems within the building. BMS can manage security, fire systems, energy use and heating systems. Instrumentation: Dealing with the measurement of flow, quantity, speed, volume etc. again usually linked to the control system.
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Unit 09 Page 1
August 2011
CGLI 2330 Certificate in Electrotechnical Technology Level 2 Inst Tech: Unit 201 – Working Effectively & Safely in an Electrotechnical Environment
Unit 09 - Electrical Industry Electrical maintenance: Involved with making sure that things already installed keep working, as they should, so that safety and production are maintained. Computer installations: Allied with data and fibre optic cabling for network purposes. Allows larger organizations to control and manage data and information technology systems. HV/LV jointing: Dealing with both underground and over ground joins in cables. Safety is a key component here. Highway electrical systems: Involved with lighting roads, telephone systems etc. common problems related to the length of runs. Panel building: Controlling items of plant, such as air conditioners or heating systems. The panel holds contactors, relays, transformer etc. Electrical machine drive installations: Related to power installations, starters are required to manage starting loads, overload setting, needs managing and regular maintenance is required. The right type of motors etc must be chosen for cost efficiency and control purposes Consumer/commercial electronics: This area is rapidly changing. Boards are now removed and replaced without the old time consuming fault finding and replacement. For more information see pages 11-15 of ‘Electrical Installations NVQ & Technical Certificate Book 1’.
Electrotechnical Organisations Organisation Who Have Electrotechnical People Working Within Them Electrical Contracting: These companies are responsible for installing Electrotechnical systems into all kinds of installations including domestic, commercial, industrial and agricultural/horticultural installations. Factories: Many factories employ Electrotechnical people to install and maintain machinery and equipment within those factories. Process plants: These will have a large amount of electrical equipment to enable the relevant processes to be carried out thus necessitating Electrotechnical people to install and maintain them. Local councils: Apart from the commercial premises, e.g. council offices, etc., they will also generally have a large number of domestic premises for rent. The electrical systems within these premises need maintaining as well as new works being carried out on the same. Additionally, street lighting furniture is generally the responsibility of local authorities. Commercial/business buildings and complexes: These will include offices and shops including large shopping malls. All of these will include heating, lighting and ventilation systems that will require installing and maintaining. Leisure centres: These establishments will have extensive heating, lighting and ventilation requirements and in many cases a plant room to service a swimming pool. Again, Electrotechnical specialists will be required to keep this equipment functioning.
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August 2011
CGLI 2330 Certificate in Electrotechnical Technology Level 2 Inst Tech: Unit 201 – Working Effectively & Safely in an Electrotechnical Environment
Unit 09 - Electrical Industry Panel builders: Manufacturing and process plant equipment usually requires extensive control gear to run them. This control gear is generally contained within a panel the nature of which is generally quite complicated. These panels are generally manufactured by specialists companies employing specialist Electrotechnical personnel. Motor rewind and repair companies: These organisations manufacture and repair all forms of rotating machinery, i.e. motors and generators, and this role requires highly trained and skilled personnel. Railways: The most obvious example where electrotechnical personnel are required is in the building and maintenance of the actual trains many of which are now electric. In addition to this electrotechnical personnel are employed to install the signalling and telecommunications systems that the railway system relies on for safe operation. Also, the railway companies have many buildings including stations and offices that need to have electrical systems installed and maintained. Armed forces: There are many permanent and temporary military establishments including army camps, air-bases and not to forget ships. Additionally, particularly in the case of the army, temporary camps and bases are established in combat zones. For example, field hospitals and field maintenance areas. All of these require a large service infrastructure involving an extremely large number of electrotechnical people, e.g. Royal Electrical & Mechanical Engineers (REME). Hospitals: These obviously rely on large amounts of electrical equipment, much of which is life-saving. Obviously, these need to be maintained to a very high standard, as does the supply itself, if lives are not to be put at risk. Equipment and machine manufacturers: Many manufacturers employ Electrotechnical people to install and maintain machinery and equipment within their production areas. For more information see pages 38 to 44 of ‘Electrical Installations Level 2 2330 Technical Certificate’ – revised for the 17th Edition IEE Wiring Regulations (ISBN 978 0 435401 09 2).
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August 2011