A bus bar assembly includes, among other things, a nonconductive terminal cap that is configured to at least partially surround an electrically conductive terminal. The terminal cap has a perimeter wall that is configured to circumscribe at least a portion of the terminal to provide a gap that is configured to expose the terminal. The terminal cap includes a first attachment feature. The terminal cap also includes a bus bar that has an end that is configured to mechanically and electrically engage the terminal in an assembled condition. The terminal cap further includes a nonconductive shroud that encloses the bus bar. The shroud includes a second attachment feature that is configured to removably engage the first attachment feature in the assembled condition to secure the shroud to the terminal cap.

A bus bar assembly includes, among other things, a nonconductive terminal cap that is configured to at least partially surround an electrically conductive terminal. The terminal cap has a perimeter wall that is configured to circumscribe at least a portion of the terminal to provide a gap that is configured to expose the terminal. The terminal cap includes a first attachment feature. The terminal cap also includes a bus bar that has an end that is configured to mechanically and electrically engage the terminal in an assembled condition. The terminal cap further includes a nonconductive shroud that encloses the bus bar. The shroud includes a second attachment feature that is configured to removably engage the first attachment feature in the assembled condition to secure the shroud to the terminal cap.

An overhead power distribution line (10) comprises a tension resistant pole (101), two composite crossbeams (102) and tension resistant fixing members (103). A middle portion of the composite crossbeam (102) is horizontally secured on the tension resistant pole (101), and end portions of the composite crossbeam (102) are connected to the tension resistant fixing members (103). The tension resistant fixing members (103) enable the two composite crossbeams (102) to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams (102) are secured on the same horizontal plane of the tension resistant pole (101), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (102), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams (102) are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams (102) can further eliminate the use of tension insulators and simplify the structure of lines.

A support system for supporting power distribution or transmission lines includes a support pole having a first end and a second and a crossarm attached to the support pole, proximate the first end of the support pole. The crossarm has a first end, a second end and one or more side walls extending between the first and second ends of the crossarm. The side walls of the crossarm define an elongated interior space. The support system further includes an internal conduit formed in the interior space of the crossarm. The internal conduit extends along an axial direction of the crossarm. The internal conduit is made from insulative material.

A support system for supporting power distribution or transmission lines includes a support pole having a first end and a second and a crossarm attached to the support pole, proximate the first end of the support pole. The crossarm has a first end, a second end and one or more side walls extending between the first and second ends of the crossarm. The side walls of the crossarm define an elongated interior space. The support system further includes an internal conduit formed in the interior space of the crossarm. The internal conduit extends along an axial direction of the crossarm. The internal conduit is made from insulative material.

A power distribution system comprising a bus bar, a frame member, a support block formed from a non-conductive material and having a first side and an opposite second side, one or more first fasteners extending beyond the second side and mechanically coupled to the bus bar, one or more second fasteners extending beyond the first side and mechanically coupled to the frame member, a first insulator located between the first side of the support block and the frame member, and a second insulator located between the second side of the support block and the bus bar. Other apparatus and methods are also disclosed.

A power distribution system comprising a bus bar, a frame member, a support block formed from a non-conductive material and having a first side and an opposite second side, one or more first fasteners extending beyond the second side and mechanically coupled to the bus bar, one or more second fasteners extending beyond the first side and mechanically coupled to the frame member, a first insulator located between the first side of the support block and the frame member, and a second insulator located between the second side of the support block and the bus bar. Other apparatus and methods are also disclosed.

The present invention provides a connection module that allows miniaturization of a coupling structure for insulating protectors. A connection module includes a plurality of bus bars and a plurality of insulating protectors that insulate and hold the plurality of bus bars. Each of the insulating protectors includes at least one of a lock portion that includes a lock protrusion and that is provided for coupling with an adjacent insulating protector and a guide portion that guides the lock protrusion of the lock portion provided in the adjacent insulating protector such that the lock protrusion is engaged with the guide portion. The lock portion includes a guide receiving portion into which the guide portion is to be inserted, and the guide portion includes a lock engagement portion with which the lock protrusion is to be engaged.

The present invention provides a connection module that allows miniaturization of a coupling structure for insulating protectors. A connection module includes a plurality of bus bars and a plurality of insulating protectors that insulate and hold the plurality of bus bars. Each of the insulating protectors includes at least one of a lock portion that includes a lock protrusion and that is provided for coupling with an adjacent insulating protector and a guide portion that guides the lock protrusion of the lock portion provided in the adjacent insulating protector such that the lock protrusion is engaged with the guide portion. The lock portion includes a guide receiving portion into which the guide portion is to be inserted, and the guide portion includes a lock engagement portion with which the lock protrusion is to be engaged.

A post insulator, a post insulator keeper, and a method of securing a conductor on a post insulator are provided. A post insulator includes: an electrically insulative case including an abutment surface defining a recess; and a keeper rotatably coupled to the case between an open position in which a conductor is receivable into the recess, and a closed position to maintain the conductor in the recess.