1. Safety Training Presentation No 3 Electrically isolate and lock off when power is not required and when working close to unguarded machinery V5-12 August 2015

2. Accidents Over the last 20 years there have been 12 fatal accidents within the UK lift and escalator industry How have the fatal accidents occurred?  Falling from height  Crushing/ struck by moving equipment  Electricity 2

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4. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Risk…  Approximately 20 fatalities per year in UK (all industries).  Electrical injuries caused by a range of voltages – dependant upon circumstances  230V can, and does kill…  Equipment flashovers, burns, loss of muscle control, consequential falls from height etc. 4

5. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Risk… Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Risk…  Shock is the effect of current flowing through the body  Current does the damage  Causes muscles to contract, tissue damage and internal burning  Can cause cardiac arrest and respiratory failure  The higher the current: the shorter the duration for injury 5

6. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Risk…  Threshold of sensation: 0.5mA  Threshold of pain: 5mA  ‘Let-go’ current ( ): 10mA  Ventricular fibrillation (heart spasms): 50mA  60W light takes 250mA Source: DD IEC/TS 60479-1:2005 6 sufficient to cause spasms, but still allowing ‘let go’

7. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  NOTE: Electrically isolate and lock off applies equally to escalators, service lifts, lifting platforms and other equipment in addition to conventional lifts 7

8. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Always take precautions when working on or near live electrical equipment.  Lock and tag out the supply [or, if not possible, remove the fuses and take them with you] when power is not required to perform the task.  Ensure that you verify that the disconnection has been made 8

9. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Always take precautions when working near electrical equipment. 9

10. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 10

11. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 11

12. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  These are the ones that survived 12

13. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Always take precautions when working near electrical Remember  Lock and tag out the supply [or, if not possible, remove the fuses and take them with you] when power is not required to perform the task. 13

14. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 14

15. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Two engineers each apply their own locks to secure isolation by using multi-lock hasp lock off devices 15

16. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Isolator with handle drilled and padlocked 16

17. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Ellison switch with handle drilled and padlocked 17

18. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity NOT a good example of isolation 18

19. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Always take precautions when working near electrical equipment. Lock and tag out the supply [or remove the fuses and take them with you] when power is not required to perform the task.  Ensure that you verify that the disconnection has been made 19

20. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Verify test device by confirming voltage present 20

21. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Isolate 21

22. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Why looking away? To avoid injury from flashover 22

23. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 23 Lock Off and Tag Out

24. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 24 Why tag? To give info on who’s working and what on

25. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Always take precautions when working near electrical equipment. Lock and tag out the supply [or remove the fuses and take them with you] when power is not required to perform the task. Confirm isolated 25

26. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Always take precautions when working near electrical equipment. Lock and tag out the supply [or remove the fuses and take them with you] when power is not required to perform the task. Verify test device on separate circuit 26

27. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Never assume the disconnection has been successful – you need to check that the disconnect is effective and secured 27

28. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Lock off and tag out to secure the equipment after isolating 28

29. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Always take precautions when working near electrical equipment. Lock and tag out the supply [or remove the fuses and take them with you] when power is not required to perform the task. NOTE: The procedure for proving dead should be by use of a proprietary test lamp or two-pole voltage detector as recommended in HSE Guidance Note GS38: Electrical test equipment for use by electricians 29

30. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Consider other sources which could remain live – see later slide 30

31. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Electricity at Work Regulations 1989 Prohibits work on live conductors where it can be avoided 31

32. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Consider whether you have to work live  If you must work live use suitable PPE, electrical gloves, insulating mats, shrouds.  Avoid the chance of earthing yourself by removing or covering jewellery. 32

33. Fit an insulating shroud to protect against accidental contact with live terminals and wear eye protection to protect against flash Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Wear insulating rubber gloves (BS EN 60903) until isolation is proven 33

34. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Verification of rubber gloves 34

35. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Use an insulating rubber mat (BS 921) 35

36. Fit an insulating shroud to protect against accidental contact with live terminals and wear eye protection to protect against flash Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 36

37. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Precaution if equipment is accidentally live - use insulated tools (BS EN 60900) and maintain them in good condition –Standard says not more than 18mm exposed tip 37

38. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Without an insulating shroud it would be easy to make accidental contact with the live terminals 38

39. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Poorly insulated tools – more than 18mm of tip exposed. These should be discarded 39

40. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity Replacement leads required 40

41. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity The charred remains of an electricians glasses after being caught unprotected in a flash 41

42. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity When the equipment must remain energised, effective insulation and safe electrical working practices must be used e.g. rubber gloves, rubber mats on floor, insulating Remembertain, electrically insulated tools.  Avoid the chance of earthing yourself by removing or covering jewellery. 42

43. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity When the equipment must remain energised, effective insulation and safe electrical working practices must be used e.g. rubber gloves, rubber mats on floor, insulating Remove or cover watches, rings, necklaces (And bracelets? And earrings?) 43

44. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Give yourself as much room as possible and remember – keep the area free of surplus materials.  There should be suitable light levels (similar to a well-lit office) at point of work  Replace all equipment covers on completion of work as soon as possible. 44

45. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Even though the mains three phase isolator to the control panel is switched off, other sources may remain live. Think of isolation during the whole process – not just in the controller. What about the rest of the installation? 45 SignalsLighting TransformersAlarms Door detectorsFans

46. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Even though the mains three phase isolator to the control panel is switched off, other sources may remain live. 46 SignalsLighting TransformersAlarms Door detectorsFans Are any other devices connected to the lighting circuit?

47. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Even after all power has been isolated there is also the danger of electric shocks from sources of stored energy. 47 Charged capacitorsVF drives

48. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity  Even after all power has been isolated there is also the danger of electric shocks from sources of stored energy. 48 Charged capacitorsVF drives These should be marked, but what if they aren’t?

49. Discharge these or take precautions against any stored energy with a Safe System of Work before working on them Electrically isolate and lock off when power is not required and when working close to unguarded machinery Safe Working with Electricity 49

50. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Charter also covers works close to or on unguarded machinery 50

51. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Charter also covers works close to or on unguarded machinery 51

52. Electrically isolate and lock off when power is not required and when working close to unguarded machinery The Charter also covers works close to or on unguarded machinery 52

53. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery...  Display a sign at all landings – discourages interference  Switch off the electrical or hydraulic supply and post a sign  Lock off the switch or remove the valve lever, or use another method to ensure that the supply cannot be restored while work is going on 53

54. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery...  Display a sign at all landings – discourages interference 54

55. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery...  Display a sign at all landings – discourages interference 55

56. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Remember a sign at all landings – discourages interference  Switch off the electrical or hydraulic supply and post a sign 56

57. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Switch off electrical supply and/ or… 57

58. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... …hydraulic oil supply… 58

59. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... …and post a sign 59

60. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Display a sign at all landings – discourages interference Rememberoff the electrical or hydraulic supply and post a s  Lock off the switch or remove the valve lever, or use another method to ensure that the supply cannot be restored while work is going on 60

61. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Display a sign at all landings – discourages interference Switch off the electrical or hydraulic supply and post a sign Lock off the switch to ensure it cannot be restored while work is going on 61

62. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Display a sign at all landings – discourages interference Switch off the electrical or hydraulic supply and post a sign Remove hydraulic control lever and… 62

63. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Before starting work on machinery... Display a sign at all landings – discourages interference Switch off the electrical or hydraulic supply and post a sign Lock off the switch to ensure it cannot be restored while work is going on …put it in a secure place 63

64. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Working on machinery  Guards must be kept in position unless you need to remove them to carry out work  Machinery must not be operated with the guards removed unless: 64

65. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Working on machinery  Guards must be kept in position unless you need to remove them to carry out work  Machinery must not be operated with the guards removed unless: it is not practicable to work on or adjust the equipment whilst stationary and with the guards in position AND You have a safe system of work to do so 65

66. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Working on machinery  Inspect ropes only whilst they are stationary and wear gloves to inspect them  Cleaning or lubricating rotating parts: ropes, chains, sheaves etc. must be done with the power isolated. Restore the power only to move the machinery to a new position and isolate again 66

67. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Working on machinery  After handwinding, remove separate winding wheel and brake release  After completing the work re-fix the guards with the correct number of bolts or screws  Before supply is restored check no-one will be harmed 67

68. Electrically isolate and lock off when power is not required and when working close to unguarded machinery If you are supervising somebody  HSE advise that supervision arrangements must be appropriate and proportionate to the risk – work on or near to live conductors, inexperienced staff etc…  Personnel under training need to be supervised  Auditing arrangements for roaming workers  Ideally a formal inspection when manager goes on site to review and record evidence of safe working procedure. 68

69. Electrically isolate and lock off when power is not required and when working close to unguarded machinery Summary  Don’t work live if you can avoid it  Lock out, tag out AND verify  Maintain control of the energy sources  Don’t work in close proximity to unguarded moving machinery 69

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71. LEIA Safety Charter  Protect yourselves and others from falls and falling objects.  Use and verify Stop and other devices when accessing, egressing and working on car tops and in lift and escalator pits to ensure total control of the equipment.  Electrically isolate and lock off when power is not required and when working close to unguarded machinery. 71

72. LEIA Safety Charter  Now incorporated into the latest edition of the LEIA Site Safety Handbook.  We ask you to sign in this handbook, to commit to the three elements of the Safety Charter 72

73. Thank You for attending 73