The present disclosure relates to an electrically powered aircraft comprising: a propulsion system; a navigation control system operatively coupled to said propulsion system to navigate the aircraft to a desired location; a rechargeable electrical power storage to power the aircraft during operation; and a power line charging unit comprising a current transformer operatively coupled to said rechargeable electrical power storage and remotely operable to engage a power line in flight to recharge said rechargeable electrical power storage and remotely disengage said power line once recharged.

System and method for determining real-time sag and shape information of an electrical power line based on strain distribution along a length of an optical fiber associated with the power line. An embedded fiber coupled to an overhead transmission line measures strain using the backscatter of an optical signal, the optical signal is then interrogated using an interferometer.

System and method for determining real-time sag and shape information of an electrical power line based on strain distribution along a length of an optical fiber associated with the power line. An embedded fiber coupled to an overhead transmission line measures strain using the backscatter of an optical signal, the optical signal is then interrogated using an interferometer.

The present invention describes an insulator stack cleaner to remove dust and dirt from power line transmission insulators. The cleaner autonomously cleans an insulator stack. The cleaner has two cleaning cups that counter-rotate during cleaning. The cleaner moves along an insulator stack by opening one cleaning cup while the other cup is locked onto an insulator, then the cleaner's transitional motors somersault the open cup onto the next insulator in the stack, and the open cup subsequently closes around the next insulator. A rack and pinion mechanism rotates the closed cup around an insulator and a cam mechanism opens and closes the cup around an insulator. Bristles on the cleaning cups scrub the insulators. The cleaner can be installed onto an insulator stack by a drone.

A utility pole system that provides for easy temperature inspection of the fiberglass reinforced plastic utility pole. The system may include utility pole and a sleeve arranged around the pole, and a temperature sensor positioned underneath the sleeve.

A passive-intermodulation-mitigating mounting assembly for a fixture, such as can be affixed to a utility or communications monopole can include a first bracket and a second bracket respectively defining a first through hole and a second through hole. In some examples, a mounting plate supports an antenna or a radio. A fastener can extend through the first through hole and the second through hole, for instance to couple the first bracket with the second bracket to attach the mounting assembly to a fixture. The passive-intermodulation-mitigating mounting assembly can include a bushing that can be inserted into a through hole, and the bushing can physically and electrically isolate the fastener from one or more of the brackets. The isolation of the bushing helps inhibit the passive-intermodulation of the mounting assembly when the fastener extends, via the first bushing, through at least one of the through holes.

A passive-intermodulation-mitigating mounting assembly for a fixture, such as can be affixed to a utility or communications monopole can include a first bracket and a second bracket respectively defining a first through hole and a second through hole. In some examples, a mounting plate supports an antenna or a radio. A fastener can extend through the first through hole and the second through hole, for instance to couple the first bracket with the second bracket to attach the mounting assembly to a fixture. The passive-intermodulation-mitigating mounting assembly can include a bushing that can be inserted into a through hole, and the bushing can physically and electrically isolate the fastener from one or more of the brackets. The isolation of the bushing helps inhibit the passive-intermodulation of the mounting assembly when the fastener extends, via the first bushing, through at least one of the through holes.

The invention relates to a contamination protection device for high-voltage insulators and an arrangement consisting of the contamination protection device and a high-voltage insulator. The contamination protection device for high-voltage insulators according to the invention is designed to be mounted on the insulator cap of the high-voltage insulator and comprises for this purpose a mounting region, which is designed to be interlockingly connected to the insulator cap and comprises a through-opening for the connecting element of the insulator cap. A protective shield is furthermore provided, which extends radially around the mounting region in order to cover the high-voltage insulator. The arrangement comprises a high-voltage insulator with an insulator cap and a contamination protection device disposed on the insulator cap, wherein the contamination protection device is designed according to the invention and is connected to the insulator cap by means of an interlocking connection.

A splice for connecting a first and second cable tray includes first and second connectors. The first connector has a first base, a first tine extending from the first base having a first female connecting feature, and a second tine extend from the first base having a first male connecting feature. The first and second tine are separated by a first opening. The second connector has a second base, a third tine extending from the second base having a second female connecting feature, and a fourth tine extend from the second base having a second male connecting feature. The third tine and the fourth tine are separated by a second opening. The first and second connectors are configured to be connected together with the first female connecting feature mating with the second male connecting feature and the first male connecting feature mating with the second female connecting feature.

The invention relates to a contamination protection device (10) for high-voltage insulators (3), and to an assembly of a contamination protection device (10) and a high-voltage insulator (10). The contamination protection device (10) is designed for fastening to the insulator cap (5) of the high-voltage insulator (3) and has a protective shield (11), which extends radially around a feed-through opening (12) for the connection element (7) of the insulator cap (5), the feed-through opening (12) being surrounded, on the one side of the protective shield (11), by a fastening region (23) for interlocking connection to the insulator cap (5). On the other side of the protective shield (11), two eyes (14) for the insertion of a tab element (30) are provided and a tab element (30) is provided. The eyes (14) are arranged in such a way that the tab element (30) extends over the feed-through opening (12) after having been inserted