Technical Specifications for Air Cooled Jumpers
Every Watteredge Dry Jumper (DJ) has completely silver plated terminals
compressed under tons of pressure. Terminals can be manufactured up to
3 7/8" long for special applications.
DJ Terminal Thickness
| MCM |
1.250" wide |
1.375" wide |
1.500" wide |
| 500 |
0.510" |
0.465" |
0.425" |
| 600 |
0.540" |
0.490" |
0.450" |
| 750 |
0.650" |
0.590" |
0.545" |
| 1000 |
0.825" |
0.750" |
0.690" |
| 1200 |
0.965" |
0.880" |
0.805" |
| 1500 |
1.165" |
1.060" |
0.975" |
| 2000 |
|
1.575" |
1.440" |
Note:
The standard terminal width is 1 1/4".
If a 1 3/8" or 1 1/2" wide
terminal is required, please specify when ordering. |
How To Order Type DJ Dry Jumper:
The length is measured from the bolt hole centers at each end of the
cable on straight or 45° terminals. It is measured from the extreme
ends of 90° terminals. On terminals with two holes, measure from
the centers of the outer holes. Standard hole sizes are 17/32" or
21/32". The following information should be provided:
| Terminals |
| Type |
MCM
Size |
Length |
1st
End |
2nd
End |
| DJ |
6C
or 600 MCM |
16" |
F |
V |
Example:
DJ 6C 16" FV.
See Graphics (RIGHT) for more Dry Jumper Terminal types. |
Installation Methods
Air-cooled jumpers should be installed in such a manner that the mechanical
stresses at the terminals will be reduced to a minimum. This may be
accomplished by installing the jumper with a little slack, which will
allow the jumper to flex freely.
Bend radii should not be sharp. (See "Jumper Bend Specifications" chart
below for minimum bend radii)
 |
Jumper Bend
Specifications
Recommended Minimum Bend Radii:
500 MCM and below ..... 2"
600 MCM - 1500 MCM ... 3" |
Minimum
Distance from the Bolt Hole Center to the point where the Bend Radius begins
is as follows:
350 MCM - 600 MCM ... 2"
750 MCM ....... 2 1/2"
1000 MCM ....... 3"
1200 MCM ...... 3 1/2"
1500 MCM ........ 4" |
Maintain the bend radii as large as possible in an effort to distribute
the frictional wear over the entire jumper length rather than to concentrate
it in one area.
Technical Data
DC Resistance Single Conductor Air-Cooled
and Water-Cooled Cables
| MCM |
DC
Resistance
Ohms per ft. at 70°C |
| 350 |
.0000376 |
| 400 |
.0000322 |
| 500 |
.0000263 |
| 600 |
.0000217 |
| 750 |
.0000172 |
| 1000 |
.0000130 |
| 1200 |
.0000110 |
| 1500 |
.0000088 |
| 2000 |
.0000066 |
|
