Advertisement
00 Index and foreword
How to read electric wire code
How to read electric wire code
In the electrical circuit diagram, material, thickness and color of each electric wire are indicated by sym-
q
bols. The wire code is helpful in understanding the electrical circuit diagram.
Example) AEX 0.85 L: Indicates blue, heat-resistant, low-voltage wire for automobile, having nominal No. of
0.85
Indicates type of wire by symbol.
Type, symbol, and material of wire are shown in Table 1.
AEX
(Since the use of AV and AVS wires depends on size (nominal No.), their symbols are not
indicated on the diagram.)
Indicates size of wire by nominal No.
0.85
Size (Nominal No.) is shown in Table 2.
Indicates color of wire by color code.
L
Color codes are shown in Table 3.
Type, symbol, and material
AV and AVS are different in thickness and outside diameter of the coating. CAVC has a circular com-
q
pressed conductor. It differs from AV and AVS in the outside diameter of conductor and thickness of the
coating. And AEX is similar to AV in thickness and outside diameter of the coating but different from AV
and AVS in material of the coating.
(Table 1)
Type
Symbol
Low-voltage
wire for automo-
AV
bile
Thin-cover
low-voltage wire
AVS
for automobile
(Type 1)
Thin-cover
low-voltage wire
CAVS
for automobile
(Type 2)
Heatresistant
lowvoltage wire
AEX
for automobile
00-40
Conductor
Insulator materia
material
Soft polyvinyl chloride
Annealed
copper for
electric
appliance
Heat-resistant cross
linked polyethylene
Temperature
range (°C) in
Example of use
use
For large current wiring
(nominal No. 5 and above)
General wiring
-30 to +60
(nominal No. 3 and lower)
For mid- to small-size
(nominal No. 1.25 and lower)
General wiring for extremely
-50 to +110
cold weather specification Wiring at
high ambient
(Rev. 2012/10)
excavators
temperature place
WA200-7
Advertisement
