(b) Cooling. Electrical equipment that depends on the natural
circulation of air and convection principles for cooling of exposed
1.10.1.14 Electrical Connections. Because of different characteristics of dissimilar metals, devices such as pressure terminal or pressure splicing connectors and soldering lugs shall be identified for the
material of the conductor and shall be properly installed and used.
Conductors of dissimilar metals shall not be intermixed in a terminal
or splicing connector where physical contact occurs between
dissimilar conductors (such as copper and aluminum, copper and
copper-clad aluminum, or aluminum and copper-clad aluminum),
unless the device is identified for the purpose and conditions of use.
Materials such as solder, fluxes, inhibitors, and compounds, where
employed, shall be suitable for the use and shall be of a type that will
not adversely affect the conductors, installation, or equipment.