AVSS Wire
AVSS wire is a type of thin PVC insulated stranded copper wire used in essentially all modern Japanese vehicles where wire temperatures are under 80C.
AV wire is the oldest type of electrical wires for automotive. Recently, the industry has moved to wires which have thinner insulation and smaller outside diameter like AVSS and DIVUS(CIVUS) etc.
AVSS wire properties and specifications are dictated by the Japanese Automotive Standards Organization (JASO), especially JASO D625.
The full description of AVSS wire is as follows:
- Very Thin PVC Insulated Low-voltage Copper Wires for Automobiles (Thin wall 2)
A: Low-voltage wires for automobiles
V: Vinyl
SS: Super thin type
AVSS wire is available from Japanese manufacturers such as Sumitomo.
AVSS Specifications
| Conductor
(Annealed copper stranded conductors) |
Insulation | Overall
diameter (㎜） |
Identification
marking |
Heat
resistance class (℃) ＊1 |
MAX.
Conductor resistance 20℃） mΩ/m） |
Approx.
weight g/m） |
Standard
packing style |
Standard
length (m） ＊2 | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Construction
（Strand №/Diam. mm） |
Calculated
area （mm2） |
Outer
diameter （㎜） |
Thickness
（㎜） |
Standard | Max. | Band
marking |
Code
marking | |||||
| 0.3 | 7/0.26 | 0.3716 | 0.8 | 0.3 | 1.4 | 1.5 | 2pcs. | ― | 80 | 50.2 | 5 | Coil shape | 1,500 |
| 0.5 | 7/0.32 | 0.5629 | 1.0 | 0.3 | 1.6 | 1.7 | 1pc. | ― | 80 | 32.7 | 7 | Coil shape | 1,000 |
| 0.85 | 19/0.24 | 0.8596 | 1.2 | 0.3 | 1.8 | 1.9 | 2pcs. | ― | 80 | 21.7 | 10 | Coil shape | 1,000 |
| 1.25 | 19/0.29 | 1.255 | 1.5 | 0.3 | 2.1 | 2.2 | 1pc. | ― | 80 | 14.9 | 14 | Coil shape | 800 |
| 2(f)＊2 | 37/0.26 | 1.964 | 1.8 | 0.4 | 2.6 | 2.7 | ― | SS-2 | 80 | 9.50 | 22 | Coil shape | 500 |
AVSS Allowable Current
| Size | Ambient temperature（℃） | |||||
|---|---|---|---|---|---|---|
| 20 | 30 | 40 | 50 | 60 | 70 | |
| 0.3 | 10 | 9 | 8 | 7 | 6 | 4 |
| 0.50 | 14 | 12 | 11 | 10 | 8 | 5 |
| 0.85 | 18 | 16 | 14 | 12 | 10 | 7 |
| 1.25 | 23 | 21 | 19 | 16 | 13 | 9 |
| 2（f） | 31 | 29 | 26 | 22 | 18 | 13 |
AVSS Insulation Colors
AVSS Color naming scheme is important for interpreting Japanese wiring diagrams, wire harness drawings, and electrical distributions.
| B | BG | BR | CH | DG | G | GR | L | LG | P | PU | R | SB | V | W | Y |
| black | beige | brown | dark
brown |
dark
green |
green | gray | blue | light
green |
pink | light
violet |
red | sky
blue |
violet | white | yellow |
See also:
