"Harmonized" is one of the European Committees' favorite words, as anyone living in this part of the world will know!
The coding breaks down into seven categories.
Identification of designation:
H = Harmonized standards
A = Authorized national standards
Nominal voltage:
03 = 300/300V
05 = 300/500V
07 = 450/750V
Insulating materials:
V = PVC
R = Rubber
S = Silicone
Sheathing materials:
V = PVC
R = Rubber
N = Polychloroprene (PCP)
J = Glassfiber braid (GFB)
T = Textile braid
T2 = Textile braid with flame resistance
Special constructions:
H = Flat divisible cords (Figure-of-8)
H2 = Flat non-divisible cords
D5 = Central core (non-supported element)
Conductor form:
U = Solid wire
R = Stranded wire
K = Fine wire (for permanent installation)
F = Fine wire (for flexible cables)
H = Superfine wire
Y = Tinsel
Number of cores:
2 = 2 cores
3 = 3 cores, etc.
Notice that for this system to apply the first character has to be "H" for harmonized standard. It's curious that a supposed international standard then specifies that "A" can be used for varying "authorized national standards."
