Abstract: A protective cover has a body in which an electrical wire connection part of a battery connection terminal is installed and a cover piece covering a clamping part of the terminal and hinged to the body. The cover piece contains a pair of elastically deformable locking arms extending vertically. The body has receiving portions locking lip portions of the locking arms thereto when the cover piece is closed. The locking arms are protected inside the cover piece and are sufficiently flexible to reduce risk of breakage on repeated opening and closing.

Abstract: An auxiliary support system for use with a line-post insulator of an electric power transmission system includes a tension member of electrically insulating material coupled between a tower and the junction of a conductor support with the outboard terminus of the line-post insulator. A clamp formed of two juxtaposed jaws bends downwards to clear the conductor and support, and then bends inwardly to grip the terminus and secure it to the tension member. Attachment of the auxiliary support can be accomplished without disruption of the electric power.