(under subclass 148) Structures in which all of the insulators are arranged in a series between the conductor and a supporting structure.
(1) Note. For strings and stacks combined with arcing or conductive stress distributing means, see this class, subclass 141.
(2) Note. Multiple insulator assemblies in which some of the insulators are arranged in series, and some are not, have been placed in this class, subclass 148 or 149, and cross-referenced here when necessary.
