LOW VOLTAGE ELECTRICAL INSTALLATIONS:3

1 LOW VOLTAGE ELECTRICAL INSTALLATIONS: 3. Methods of installation and current-carrying capacities based on IEC 60364-5-52 Methods of installation and current-carrying capacities based on IEC 60364-5-52 1. SUMMARY page Methods of installation : Table Examples of methods of installation providing instructions for obtaining current-carrying capacity 3-9. Current-carrying capacities: Table installation reference methods forming basis of tabulated current-carrying capacities 10. Table Current-carrying capacities in amperes for methods of installation in Table : 11. - PVC insulation/two loaded conductors, copper or aluminium - Conductor temperature: 70 C, ambient temperature: 30 C in air, 20 C in ground Table Current-carrying capacities in amperes for methods of installation in Table : 12.

2 - xlpe or EPR insulation, two loaded conductors/copper or aluminium - Conductor temperature: 90 C, ambient temperature: 30 C in air, 20 C in ground Table Current-carrying capacities in amperes for methods of installation in Table : 13. - PVC insulation, three loaded conductors/copper or aluminium - Conductor temperature: 70 C, ambient temperature: 30 C in air, 20 C in ground Table Current-carrying capacities in amperes for methods of installation in Table : 14. - xlpe or EPR insulation, three loaded conductors/copper or aluminium - Conductor temperature: 90 C, ambient temperature: 30 C in air, 20 C in ground Table Current-carrying capacities in amperes for installation method C of Table : 15. - Mineral insulation, copper conductors and sheath - PVC covered or bare exposed to touch - Metallic sheath temperature: 70 C, reference ambient temperature: 30 C.

3 Table Current-carrying capacities in amperes for installation method C of Table : 16. - Mineral insulation, copper conductors and sheath - Bare cable not exposed to touch and not in contact with combustible material - Metallic sheath temperature: 105 C, reference ambient temperature: 30 C. Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 17. - Mineral insulation, copper conductors and sheath/PVC covered or bare exposed to touch - Metallic sheath temperature: 70 C, reference ambient temperature: 30 C. Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 18. - Mineral insulation, copper conductors and sheath Bare cable not exposed to touch - Metallic sheath temperature: 105 C, reference ambient temperature: 30 C.

4 Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 19. - PVC insulation, copper conductors - Conductor temperature: 70 C, reference ambient temperature: 30 C. Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 20. - PVC insulation, aluminium conductors - Conductor temperature: 70 C, reference ambient temperature: 30 C. Methods of installation and current-carrying capacities based on IEC 60364-5-52 2. SUMMARY page Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 21. - xlpe or EPR insulation, copper conductors - Conductor temperature: 90 C, reference ambient temperature: 30 C. Table Current-carrying capacities in amperes for installation methods E, F and G of Table : 22.

5 - xlpe or EPR insulation. aluminium conductors - Conductor temperature: 90 C, reference ambient temperature: 30 C. Table Correction factor for ambient air temperatures other than 30 C to be applied to 23. the current-carrying capacities for cables in the air Table Correction factors for ambient ground temperatures other than 20 C to be applied to 24. the current-carrying capacities for cables in ducts in the ground Table Reduction factors for one circuit or one multi- core cable or for a group of more than one circuit, 25. or more than one multi- core cable, to be used with current-carrying capacities of Tables to Table Reduction factors for more than one circuit, cables laid directly in the ground 26. - installation method D2 in Tables to - Single- core or multi- core cables Table Reduction factors for more than one circuit, cables laid in ducts in the ground 27-28.

6 - installation method D1 in Tables to METHODS OF installation 3. METHODS OF installation 4. METHODS OF installation 5. METHODS OF installation 6. METHODS OF installation 7. METHODS OF installation 8. METHODS OF installation 9. CURRENT-CARRYING CAPACITIES 10. CURRENT-CARRYING CAPACITIES 11. CURRENT-CARRYING CAPACITIES 12. CURRENT-CARRYING CAPACITIES 13. CURRENT-CARRYING CAPACITIES 14. CURRENT-CARRYING CAPACITIES 15. CURRENT-CARRYING CAPACITIES 16. CURRENT-CARRYING CAPACITIES 17. CURRENT-CARRYING CAPACITIES 18. CURRENT-CARRYING CAPACITIES 19. CURRENT-CARRYING CAPACITIES 20. CURRENT-CARRYING CAPACITIES 21. CURRENT-CARRYING CAPACITIES 22. CURRENT-CARRYING CAPACITIES 23. CURRENT-CARRYING CAPACITIES 24. CURRENT-CARRYING CAPACITIES 25. CURRENT-CARRYING CAPACITIES 26. CURRENT-CARRYING CAPACITIES 27.

7 CURRENT-CARRYING CAPACITIES 28. TOP CABLE 29. Top Cable International Top Cable Singapore SCANKAB Cables A/S. Parc d'Activitats Econ miques Tel +65 626 211 61 Malervaenget 3. Can Sant Joan Fax +65 626 211 71 DK-5560 Aarup Cam Vell de Sant Cugat s/n Tel +45 70 20 34 55. 08191 Rub (Barcelona) SPAIN Fax +45 64 43 37 19. Tel +34 935 880 911 / Top Cable South Africa +34 935 882 800 Tel +27 11 397 35 54. Fax +34 935 883 558 Fax +27 11 397 3765.