Basic Electrical Installation Work

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Strana 377 z 399

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39. 45. 42. 38. 34. . Use bullet points state why the IEE Regulations require all new installations both inspected and tested. Very briefly state the meaning of: ● noise ● clean supplies and ● secure supplies ● with regard computer power supplies. State five regulations which are specifically relevant special installations locations horticultural premises. Use sketch show how the computer power supplies question 27 above should connected. 40. 33. Why carry out continuity protective conductors test? State the values satisfactory test result. State five regulations which are specifically relevant special installations locations agricultural premises. Use bullet points describe safe isolation procedure. 32. 31. Who can carry out live testing? Why live working not allowed? 43. five brief statements summarize the main requirements bathroom electrical installations. 29. 41. Why carry out polarity test? State the values indications satisfactory result. Why carry out insulation resistance test? State the values satisfactory test result. State five regulations which are specifically relevant special installations locations caravan parks and caravans. 44. Use sketch with notes explanation show how trunking and tray may suspended from the girders building structure by appropriate brackets. five brief statements summarize the main requirements of emergency lighting. Explain the meaning ‘segregation’ circuits.28. 30