Abstract: A method of installing a lightning protection system can include forming a blade wall of a wind turbine to at least partly include a socket. A part of the socket can be removed, after forming the blade wall, to provide an opening through the blade wall. A receptor plug and a receptor element can be secured to the socket at the opening.

Abstract: A method of installing a lightning protection system can include forming a blade wall of a wind turbine to at least partly include a socket. A part of the socket can be removed, after forming the blade wall, to provide an opening through the blade wall. A receptor plug and a receptor element can be secured to the socket at the opening.

Abstract: A lightning protection system can include a socket, a receptor plug, a tip receptor, and a tip receptor mount. The socket can extend at least partly through a blade wall, and can include a socket body, a first retention shoulder, and a plurality of first teeth. The receptor plug can include a plug body, a plug conductor, a second retention shoulder, and a plurality of second teeth. The first retention shoulder can engage the second retention shoulder to secure the receptor plug to the socket. The first plurality of teeth can engage the second plurality of teeth to resist rotation of the receptor plug. The tip receptor mount can include latticed bonding wings that can be secured to a wind turbine blade with bonding material. The receptor plug can be accessed to be secured to the socket via an opening in another socket that is formed into the blade wall.

Abstract: A lightning protection system can include a socket, a receptor plug, a tip receptor, and a tip receptor mount. The socket can extend at least partly through a blade wall, and can include a socket body, a first retention shoulder, and a plurality of first teeth. The receptor plug can include a plug body, a plug conductor, a second retention shoulder, and a plurality of second teeth. The first retention shoulder can engage the second retention shoulder to secure the receptor plug to the socket. The first plurality of teeth can engage the second plurality of teeth to resist rotation of the receptor plug. The tip receptor mount can include latticed bonding wings that can be secured to a wind turbine blade with bonding material. The receptor plug can be accessed to be secured to the socket via an opening in another socket that is foamed into the blade wall.

Abstract: A tire tread of a vehicular tire has, in a peripheral tire direction, a plurality of tread block rows that are separated from one another by wave-shaped longitudinal grooves arranged essentially in the peripheral tire direction. The individual tread blocks within each individual tread block row are separated form one another by transverse grooves, whereby the transverse grooves are arranged such that in a left tread half as well as in a right tread half the transverse grooves are aligned with one another. The groove center lines of the transverse grooves at the outer rims of the tire tread are slanted relative to a tire axis at an angle of 3.degree. to 15.degree.. The groove center lines of the transverse grooves of the center tread block rows are slanted relative to the tire axis at an angle of 15.degree. to 50.degree. whereby the transverse grooves create a design of transversely arranged elongated S-shaped grooves.