(under the class definition) Subject matter wherein the resistor includes mechanical protecting structure such as a guard, screen, or mechanical shield which is secured to the remaining resistor structure and is spaced from the resistance elements and/or terminals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
57, for resistors with vented or ventilating casings or housings.
64+, for resistors with electrical shields.
226+, for incased, embedded, or housed resistors, the casing or housing forming a protecting structure.
311, for a resistor whose element is mounted in a groove in the base. 334, for resistors with heat shielding structure, not otherwise classifiable.
SEE OR SEARCH CLASS
174, Electricity: Conductors and Insulators,
5, for miscellaneous electric shock hazard protecting devices. See also the Notes under this subclass for an extended field of search for this subject matter.