Braider for electric cable

The Problem

braider for electric cable

Braiders are used to braid the outer sheath on electrical cables. In many respects they are very akin to many textile machines. The core travels into the braider and a series of bobbins plat or braid the sheath around the cable core. The noise climate is characterised by many mechanical interaction noises.

The Solution

  • The wire reel and drive shaft had covers constructed from a thin metal sheet. The mechanical interactions were putting considerable vibration energy into the cover that then behaved like a loud speaker cone and radiated airborne noise. A 3mm pitch-based damping sheet was fixed to the wire reel and drive shaft covers.
  • As an experiment the braider was placed on a make shift anti-vibration mount to reduce the amount of vibration travelling into the main body of the machine.

The Results

The application of the damping sheet reduced the noise level by 3dB and the anti-vibration mount produced a further 2dB reduction. A total noise reduction of 5dB.

The Costs

£150 per braider (2005 rates).

Information supplied by

PDA Ltd.

Browse similar case studies

Activity

Processing[46]

Noise control technique

Industry

Link URLs in this page

  1. Noise at workhttps://www.hse.gov.uk/noise/index.htm
  2. Regulationshttps://www.hse.gov.uk/noise/regulations.htm
  3. Worried about your hearing?https://www.hse.gov.uk/noise/worried.htm
  4. Overview - Worried about your hearing?https://www.hse.gov.uk/noise/worried.htm
  5. Audio demonstrationhttps://www.hse.gov.uk/noise/assets/video/index.htm
  6. Overview - Advice for employershttps://www.hse.gov.uk/noise/advice.htm
  7. Employers' responsibilitieshttps://www.hse.gov.uk/noise/employers.htm
  8. How do I assess the risks?https://www.hse.gov.uk/noise/risks.htm
  9. Managing noise risks checklisthttps://www.hse.gov.uk/noise/checklist.htm
  10. Overview - How do I protect my workers?https://www.hse.gov.uk/noise/protect.htm
  11. How do I control the risks from noise?https://www.hse.gov.uk/noise/controlrisks.htm
  12. Use the information from my risk assessment?https://www.hse.gov.uk/noise/useinfo.htm
  13. Reduce noise?https://www.hse.gov.uk/noise/reducenoise.htm
  14. Choose quieter equipment and machinery?https://www.hse.gov.uk/noise/choosequieter.htm
  15. Hearing protectionhttps://www.hse.gov.uk/noise/hearingprotection.htm
  16. What do I need to tell my employees?https://www.hse.gov.uk/noise/assets/video/tell-index.htm
  17. Employee and safety representativeshttps://www.hse.gov.uk/noise/safetyrep.htm
  18. Health surveillancehttps://www.hse.gov.uk/noise/healthsurveillance.htm
  19. Advice for manufacturershttps://www.hse.gov.uk/noise/advice-for-manufacturers.htm
  20. Noise calculatorshttps://www.hse.gov.uk/noise/calculator.htm
  21. Key messageshttps://www.hse.gov.uk/noise/keyfacts.htm
  22. Overview - Industry good practicehttps://www.hse.gov.uk/noise/goodpractice/index.htm
  23. Overview - Managing noise riskshttps://www.hse.gov.uk/noise/goodpractice/managingrisks.htm
  24. Over-protectionhttps://www.hse.gov.uk/noise/goodpractice/hearingoverprotect.htm
  25. Accounting for 'real-world' factorshttps://www.hse.gov.uk/noise/goodpractice/hearingrealworld.htm
  26. Advice on issuing hearing protectionhttps://www.hse.gov.uk/noise/goodpractice/hearingadvice.htm
  27. Workplace designhttps://www.hse.gov.uk/noise/goodpractice/workplacedesign.htm
  28. Plastic productshttps://www.hse.gov.uk/noise/goodpractice/plastics.htm
  29. Overview - Wood workinghttps://www.hse.gov.uk/noise/goodpractice/woodworking.htm
  30. Saw millinghttps://www.hse.gov.uk/noise/goodpractice/sawmilling.htm
  31. Air turbulencehttps://www.hse.gov.uk/noise/goodpractice/airturbulence.htm
  32. Planing and mouldinghttps://www.hse.gov.uk/noise/goodpractice/planingmoulding.htm
  33. Overview - Concrete and cementhttps://www.hse.gov.uk/noise/goodpractice/concrete.htm
  34. General informationhttps://www.hse.gov.uk/noise/goodpractice/concretegeninfo.htm
  35. Avoiding impactshttps://www.hse.gov.uk/noise/goodpractice/avoidingimpacts.htm
  36. Music and entertainmenthttps://www.hse.gov.uk/noise/goodpractice/music-and-entertainment.htm
  37. Overview - Case studieshttps://www.hse.gov.uk/noise/casestudies/index.htm
  38. Full indexhttps://www.hse.gov.uk/noise/casestudies/fullindex.htm
  39. Sound solutionshttps://www.hse.gov.uk/noise/casestudies/soundsolutions/index.htm
  40. Overview - Resourceshttps://www.hse.gov.uk/noise/furtherinfo.htm
  41. Publicationshttps://www.hse.gov.uk/noise/publications.htm
  42. Researchhttps://www.hse.gov.uk/noise/research.htm
  43. Statisticshttps://www.hse.gov.uk/noise/statistics.htm
  44. Overview - Policy statementshttps://www.hse.gov.uk/noise/policy.htm
  45. Acoustic shockhttps://www.hse.gov.uk/noise/acoustic.htm
  46. Processinghttps://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=PROCESSING&TECH=NONE&IND=NONE
  47. Isolationhttps://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=NONE&TECH=ISOLATION&IND=NONE
  48. Dampinghttps://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=NONE&TECH=DAMPING&IND=NONE
  49. Design (equipment)https://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=NONE&TECH=DESIGN_EQUIPMENT&IND=NONE
  50. Textileshttps://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=NONE&TECH=NONE&IND=TEXTILES
  51. Engineeringhttps://www.hse.gov.uk/noise/casestudies/searchresults.htm?ACT=NONE&TECH=NONE&IND=ENGINEERING
  52. Noise calculatorshttps://www.hse.gov.uk/noise/calculator.htm
  53. Noise: Don't lose your hearing https://www.hse.gov.uk/pubns/indg363.htm
  54. Noise at work: A brief guide to controlling the riskshttps://www.hse.gov.uk/pubns/indg362.htm
  55. Hearing loss - what's it like?https://www.hse.gov.uk/noise/assets/video/index.htm

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Updated 2021-02-09