Extreme temperature rise at the clamping point
If the contact resistance between the aluminum conductor and clamping point is too
high, the clamping point can become very hot and even catch fire in extreme cases.
To ensure a safe and reliable contact, always perform the following work steps:
Please select the Al wire size according to rules due to lower conductivity of Al.
Keep the installation location as free as possible from moisture or corrosive
atmospheres.
Connect the aluminum cables quickly.
Tighten the clamping screw in the clamping body with the maximum permissible
tightening torque.
NOTICE
For cables and terminals:
Delta recommends the cables used should be flexible unarmored multi-strand
and with suitable ampacity.
Delta would highly recommend that the material surface of copper wire /
aluminum wire lug should be tin or nickel electroplated.
34
Installation
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