ELECTRIC WIRE CODE ELECTRIC In the wiring diagrams various colour and symbols are employed to indicate the thickness of wires. This wire code table will help you understand WIRING DIAGRAMS. Example: R–N 1.5 indicates a cable having a nominal number 1.5 and red coating with black stripe. CLASSIFICATION BY THICKNESS CLASSIFICATION BY COLOUR AND CODE COMPOSITION OF THE COLOURS The coloration of two-colour wires is indicated by the composition of the symbol listed. Example: G–V = Yellow-Green with longitudinal colouring G/V = Yellow-Green with transversal colouring SK714-5 SK815-5 00-11 Nominal number Copper wire Cable O.D.
(mm) Current rating (A) Number strands Ø of strands (mm) Cross section (mm) 0.5 16 0.20 0.35 1.55 3.5 1 14 0.30 0.99 2.80 11 1.5 21 0.30 1.48 3.35 14 2.5 35 0.30 2.47 3.80 20 4 56 0.30 3.95 4.60 28 6 84 0.30 5.93 5.20 37 Primary Auxiliary Code A A–B A/B A–G – A–N A/N A–R A–V A/V Colour Light Blue Light Blue – White Light Blue–Yellow Light Blue–Black Light Blue–Red Light Blue–Green Code B B–G – B–N B/N B–R B/R – – – – Colour White White–Yellow White–Black White–Red – – Code C C–B C/B C–L – C–N C/N – – – – Colour Orange Orange–White Orange–Blue Orange–Black – – Code G G–N G/N – G/R – – – – – – Colour Yellow Yellow–Black Yellow–Red – – – Code H H–L – H–N – H–R H/R – – – – Colour Grey Grey–Blue Grey–Black Grey–Red – – Code L – L/B L–G L/G L–N L/N L–R L/R – – Colour Blue Blue–White Blue–Yellow Blue–Black Blue–Red – Code M M–B M/B M–N – M–V – – – – – Colour Brown Brown–White Brown–Black Brown–Green – – Code N – – – – – – – – – – Colour Black – – – – – Code R R–G – R–N R/N R–V – – – – – Colour Red Red–Yellow Red–Black Red–Green – – Code S S–G – S–N S/N – – – – – – Colour Pink Pink–Yellow Pink–Black – – – Code V V–B V/B V–N V/N – – – – – – Colour Green Green–White Green–Black – – – Code Z Z–B – Z–N Z/N – – – – – – Colour Violet Violet–White Violet–Black – – –