These cables are used for power supplies with Protective Multiple Earthing (PME) systems, where a combined Protective Earth (PE) and Neutral (N) - together known as the PEN - connects the combined neutral-and-earth to real earth at multiple locations to reduce the risk of electric shock in the event of a broken PEN.

Concentric Cable Specification

S. N. SIZE(SQ.MM) Cond. Dia(MM) InsulationThickness No/Dia ofArmor SheathThickness OverallDiameter CurrentCapacity
1 4 2.25 1.00 21/0.61 1.00 7.47 27
2 6 2.80 1.00 21/0.71 1.00 8.22 35
3 10 3.57 1.00 21/0.91 1.20 9.39 47
4 16 4.50 1.20 23/0.91 1.20 11.12 64
5 25 5.64 1.30 21/1.21 1.30 13.26 84