Komatsu PC20R-8 Shop Manual page 14

ELECTRIC WIRE CODE
CABLE
In the wiring diagrams various colours 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
Nominal
Number
number
strands
1 14
1.5 21
2.5 35
4 56
6 84
35 266
CLASSIFICATION BY COLOUR AND CODE
Primary
Code A
Colour Light blue
Code B
Colour White
Code C
Colour Orange
Code G
Colour Yellow
Code H
Colour Gray
Code L
Colour Blue
Code M
Colour Brown
Code N
Colour Black
Code R
Colour Red
Code S
Colour Pink
Code V
Colour Green
COMPOSITION OF THE COLOURS
The coloration of two-colour wires is indicated by the composition of the symbols listed.
Example: G-V = Yellow-Green with longitudinal colouring.
G/V = Yellow-Green with transversal colouring.
00-10
ELECTRIC WIRE CODE
Copper wire
ù of strands Cross section
2
(mm) (mm )
0.30 0.99
0.30 1.48
0.30 2.47
0.30 3.95
0.30 5.93
0.40 9.20
A ± R A/R A ± V
Light blue - Red Light blue - Green
B ± G ± B ± N
White ± Yellow White ± Black
C ± N C/N C ± L
Orange ± Black Orange ± Blue
G ± N ±
Yellow ± Black
H ± N ± H ± L
Gray ± Black
L ± R ± L ± N
Blue ± Red
M ± V ± M ± N
Brown ± Green Brown ± Black
± ±
±
R ± V ± R ± N
Red ± Green
S ± N ± S ± G
Pink ± Black Pink ± Yellow
V ± N ±
Green ± Black
Cable O.D. Current rating
(mm) (A)
2.80 11
3.35 14
3.80 20
4.60 28
5.20 37
12.20 125
Auxiliary
± A ± N
Light blue - Black
± B ± R
White ± Red
± ±
± G/R ±
Yellow ± Red
± H ± R
Gray ± Blue Gray Red
± ±
Blue ± Black
± M ± B
Brown ± White
± ± ±
±
± R ± G
Red ± Black Red ± Yellow
± ±
± ± ±
±
Applicable circuit
Warning light, light etc.
Working beam, solenoid valve, etc.
Control panel, etc.
Pre-heating
Control panel
Battery - Ground
± ±
±
± ±
±
± ±
± ±
± ±
± ±
± H ± G
Gray ± Yellow
± ±
± ±
± ±
±
± ±
± ±
± ±
±
± ±
± ±
± ±
± ±
PC20R-8 PC27R-8
±
±
±
±
±
±
±
±
±
±
±