Within the general scope defined in Section I,American National Standard B30.5 applies to crawlercranes, locomotive cranes, wheel-mounted cranes, andany variations thereof that retain the same fundamentalcharacteristics. The scope includes only cranes of theabove types that are basically powered by internal combustionengines or electric motors. Side boom tractorsand cranes designed for railway and automobile wreckclearance, digger derricks, cranes manufactured specificallyfor, or when used for, energized electrical line service,knuckle boom, trolley boom cranes, and craneshaving a maximum rated capacity of one ton or less areexcluded.