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Foreword and general information
How to read electric wire code
How to read electric wire code
In the electric circuit diagram, the material, thickness, and color of each electric wire are indicated by symbols.
The electric wire code is helpful in understanding the electric circuit diagram.
Exam-
AEX
0.85
ple:
1. Type, symbol, and material
AV and AVS are different only in thickness and outside diameter of the cover. CAVS has a circular
compressed conductor. It differs from AV and AVS in the outside diameter and thickness of the cover. And
AEX is similar to AV in thickness and outside diameter of the cover but different from AV and AVS in mate-
rial of the cover.
(Table 1)
Type
Symbol
Low-voltage
wire for automo-
AV
biles
Thin low-volt-
age wire for
AVS
automobile
(type 1)
Thin low-volt-
age wire for
CAVS
automobile
(type 2)
Heat resistant
low-voltage wire
AEX
for automobiles
00-36
L
- - -
Indicates blue, heat-resistant, low-voltage wire for automobile, having nominal No.
of 0.85
Indicates color of wire by color code.
Color codes are shown in Table 3.
Indicates size of wire by nominal No.
Size (Nominal No.) is shown in Table 2.
Indicates type of wire by symbol.
Type, symbol, and material of wire are shown in Table 1.
(Since the use of AV and AVS wires depends on size (nominal No.), their symbols
are not indicated on the diagram.)
Material
Annealed copper for electric
Conductor
appliance
Insulator
Soft polyvinyl chloride
Annealed copper for electric
Conductor
appliance
Insulator
Soft polyvinyl chloride
Annealed copper for electric
Conductor
appliance
Insulator
Soft polyvinyl chloride
Annealed copper for electric
Conductor
appliance
Heat-resistant crosslinked
Insulator
polyethylene
Tempera-
ture range
Example of use
for use ( °C)
General wiring
(nominal No. 5 and above)
General wiring
-30 – +60
(nominal No. 3 and below)
For mid- to small-size excavators
(nominal No. 1.25 and below)
General wiring in extremely cold
-50 – +110
weather district, wiring at high
ambient temperature place
0 0 - 3 6
(Rev. 2010/03)
PC600, 650, 700-8E0
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