Specifications for Telephone Drop Wire
(Hard
Drawn Copper)
| SIZE |
AWG
#18/2 |
AWG
#17/2 |
AWG
#17/2 |
| CONDUCTORS |
Parallel |
Parallel |
Twisted |
| Diameter,
mm |
2C
X 1.020mm |
2C
X 1.15mm |
2C
X 1.15mm |
| max.
1.05mm |
max.
1.16mm |
max.
1.16mm |
| min.
0.96mm |
min.
1.138mm |
min.
1.138mm |
| Resistivity,
ohm-mm2/m |
0.01793
max. |
0.01793
max. |
0.01793
max. |
| Conductivity
per conductor, % |
96.16
min. |
96.16
min. |
96.16
min. |
| Elongation
per conductor, % |
0.85
nominal |
1.0
nominal |
1.0
nominal |
| Tensile
strength, kg/mm2 |
47.1
nominal |
48.42
nominal |
48.42
nominal |
| Insulated
dimension: Major Diameter, mm |
8.05
|
8.3
|
4.40
|
| Insulated
dimension: Minor Diameter, mm |
4.75
|
4.15
|
n/a |
Reference:
1. REA PE -7, Specification for Parallel Conductor Drop
Wire for Aerial Application
2. ASTM B 1, Standard Specification for Hard-Drawn Copper
Wire
Specifications
for Telephone Drop Wire
(Copper-Clad
Steel Wire)
| SIZE |
#18/2
awg |
| Conductor |
Parallel |
| Grade
of Wire |
Grade
30 HS |
| High
strength,30% conductivity |
| Diameter |
2C
x 1.020mm nominal |
| max.
+0.030 mm |
| min.
-0.060 mm |
| Resistance,
ohm/km |
80.40
max @ 20oC |
| Breaking
strength |
760
Newton (77.5 kg) |
| Elongation |
1.5%
minimum |
| Thickness
of copper clad |
0.1016
mm minimum |
| Insulation
material |
PE
BLK |
| Insulated
Dimensions |
| Minimum
thickness @ any point |
1.0
mm |
| Major
diameter |
5.5
to 8.0 mm |
| Minor
diameter |
3.0
to 5.0 mm |
Reference:
1. Rural Electrification Administration (REA), BULLETIN 345-36
PE-7, Specification for Parallel Conductor Drop Wire for Aerial
Application
2. ASTM B 227, Standard Specification for Hard-Drawn Copper-Clad
Steel Wire
|
