Basic Electrical Installation Work

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Strana 377 z 399

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