Instrumentation Cables 
BS5308 Cable ESI Cable BS 6231 Cable DEF Standard Cable Italian standard

Instrumentation Cables

(For Multipair PE insulated Collective Screened Cables to BS 5308 Part1.)
Two-pair unscreened cables are cabled in quad formation and colour coded in clockwise order of rotation,
black,blue,green,brown.
All other cables up to 50 pairs conform to the following coding:

 

Pair No. ‘A' Wire ‘B' Wire Pair No. ‘A' Wire ‘B' Wire
1. Black Blue 26. White Yellow
2. Black Green 27. Red Yellow
3. Blue Green 28. Orange Yellow
4. Black Brown 29. Black Grey
5. Blue Brown 30. Blue Grey
6. Green Brown 31. Green Grey
7. Black White 32. Brown Grey
8. Blue White 33. White Grey
9. Green White 34. Red Grey
10. Brown White 35. Orange Grey
11. Black Red 36. Yellow Grey
12. Blue Red 37. Black Violet
13. Green Red 38. Blue Violet
14. Brown Red 39. Green Violet
15. White Red 40. Brown Violet
16. Black Orange 41. White Violet
17. Blue Orange 42. Red Violet
18. Green Orange 43. Orange Violet
19. Brown Orange 44. Yellow Violet
20. White Orange 45. Grey Violet
21. Red Orange 46. Black Turquoise
22. Black Yellow 47. Blue Turquoise
23. Blue Yellow 48. Green Turquoise
24. Green Yellow 49. Brown Turquoise
25. Brown Yellow 50. White Turquoise