The present invention relates to a wind turbine comprising a lightning protection system comprising a waveguide interconnecting a communication device and a signal-carrying structure. In other aspects, the present invention relates to the use of a waveguide in a lightning protection system of a wind turbine, a power splitter and its use in a lightning protection system of a wind turbine.

Herein is described a n electrical earthing device formed from a sheet of material and comprising: an earthing device connector portion, for connection of the earthing device to a component to be earthed; and an earth cable connector portion, for connection to an earth cable. A first part of the earth cable connector portion is disposed in relation to a second part of the earth cable connector portion so as to define a clamping mechanism. In use, an earth cable positioned between the first and second parts is retained in position and maintained in electrical contact with the clamping mechanism by resilient biasing between the first and second parts of the clamping mechanism.

Herein is described a n electrical earthing device formed from a sheet of material and comprising: an earthing device connector portion, for connection of the earthing device to a component to be earthed; and an earth cable connector portion, for connection to an earth cable. A first part of the earth cable connector portion is disposed in relation to a second part of the earth cable connector portion so as to define a clamping mechanism. In use, an earth cable positioned between the first and second parts is retained in position and maintained in electrical contact with the clamping mechanism by resilient biasing between the first and second parts of the clamping mechanism.

The metal graphite grounding brush including silver is made in slide contact with a peripheral surface of an axle and grounds the axle. The mass ratio between silver and carbonaceous components including a volatile component in the brush is silver above 30% and up to 90% and carbonaceous components less than 70% and down to 10%. When the total of silver and carbonaceous components is made 100%, the volatile component is down to 2.0% and up to 15%. The brush grounds the axle reliably so that noise from a car radio is reduced and has a long service life and mechanical strength.

The metal graphite grounding brush including silver is made in slide contact with a peripheral surface of an axle and grounds the axle. The mass ratio between silver and carbonaceous components including a volatile component in the brush is silver above 30% and up to 90% and carbonaceous components less than 70% and down to 10%. When the total of silver and carbonaceous components is made 100%, the volatile component is down to 2.0% and up to 15%. The brush grounds the axle reliably so that noise from a car radio is reduced and has a long service life and mechanical strength.

A separable and reconnectable connector for semiconductor devices is provided that is scalable for devices having very small contact pitch. Connectors of the present disclosure include signal pins shielded by pins electrically-coupled to ground. Embodiments provide one or more signal pins in a contact array electrically-shielded by at least one ground pin coupled to a ground plane. Embodiments thereby provide signal pins, either single-ended or a differential pair, usable to transmit signals with reduced noise or cross-talk and thus improved signal integrity. Embodiments further provide inner ground planes coupled to connector ground pins to shield pairs of differential signal pins without increasing the size of the connector. Inner grounding layers can be formed within isolation substrates incorporated into connector embodiments between adjacent pairs of signal pins. These buried ground layers provide additional crosstalk isolation in close proximity to signal pins, resulting in improved signal integrity in a significantly reduced space.

The invention relates to a connection device for earthing an electrical apparatus or putting it at a reference potential. It is inserted between a first electrically conductive part belonging to said electrical apparatus and a second part belonging to a support structure on which said electrical apparatus is mounted and which may be at least partly electrically insulating. It is characterized in that it comprises a first automatic connection area for automatically creating electrical contact with said first part, and a second automatic connection area for automatically creating electrical contact with an electrical conductor that is earthed or connected to a reference potential, when said electrical apparatus is mounted on said support structure. The electrical apparatus is thus automatically earthed or connected to a reference potential when it is mounted on said support structure via said connection device and said electrical conductor, specifically without any tools, screws or any other fastening member.

The invention relates to a connection device for earthing an electrical apparatus or putting it at a reference potential. It is inserted between a first electrically conductive part belonging to said electrical apparatus and a second part belonging to a support structure on which said electrical apparatus is mounted and which may be at least partly electrically insulating. It is characterized in that it comprises a first automatic connection area for automatically creating electrical contact with said first part, and a second automatic connection area for automatically creating electrical contact with an electrical conductor that is earthed or connected to a reference potential, when said electrical apparatus is mounted on said support structure. The electrical apparatus is thus automatically earthed or connected to a reference potential when it is mounted on said support structure via said connection device and said electrical conductor, specifically without any tools, screws or any other fastening member.

Electrical grounding assemblies for electrically grounding cables in cable closures. A grounding unit of the grounding assembly can serve as a common ground connection to multiple cables. The grounding unit includes mounting features that allow it to be easily mounted and unmounted from a slotted base plate positioned within the cable closure.

Electrical grounding assemblies for electrically grounding cables in cable closures. A grounding unit of the grounding assembly can serve as a common ground connection to multiple cables. The grounding unit includes mounting features that allow it to be easily mounted and unmounted from a slotted base plate positioned within the cable closure.