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.

The application relates to a grounding conductor and an electrical system including such a grounding conductor including a plurality of conductive aluminium strands where each such strand is provided with at least one sheath of an electrically conductive polymer material having a volume resistivity (ρ) below 100 Ω.Math.cm.

A through roof connector assembly for connecting an air termination conductor to a conducting rod through a roof of a structure while limiting water ingress into the roof. The through roof connector assembly includes a universal top, a threaded stud, a conduit connection component with an upper threaded tap hole and a lower threaded tap hole which do not meet to provide a completely weatherproof connection, and a conduit extending through a roof membrane when installed in the roof. The conduit has within a conducting rod, the conducting rod threaded the lower threaded tap hole of the conduit connection component. The air terminal also threads into the threaded stud. An o-ring is located between the conduit connection component and the conduit to provide a further weatherproof connection.

A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly may be configured to allow the base mast section to hinge relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.

A portable lightning protection system including a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; and a base assembly attachable to the base mast section via a hinge assembly, wherein the hinge assembly may be configured to allow the base mast section to hinge relative to the base assembly. A catenary lightning protection system including at least two lightning protection systems, each lightning protection system may include a multi-section conductive mast assembly including at least a base mast section and a top mast section; an air terminal attachable to the top mast section; a base assembly attachable to the base mast section; and may further include a catenary wire connected between the at least two lightning protection systems.

The technology relates to techniques for lightweight brackets for storm hardening of aircraft components. A bracket flange for protecting an electronics assembly from electrical storm activity can include a leg element coupled to and extending from a component of a vehicle and a first bar element extending from another end of the leg element on a plane substantially parallel to the component and over a part of an electronics assembly. The location of the bracket flange can be determined using a lightning attachment survey configured to indicate a part of the electronics assembly to which a lightning streamer attaches during an electrical surge. The location and size of the bracket flange may be configured to divert surge current away from the part of the electronics assembly to which the lightning streamer attaches in the lightning attachment survey.

A lightning protector device for laying on a structure that is to be protected the device comprises: a surface coating including at least one conductive paint layer. A plurality of electrically conductive elements is arranged in spaced-apart manner on the structure, and the elements are in contact with the conductive paint layer. A protective coating is arranged on the surface coating and comprises a material that is thermally insulating and electrically conductive. The protective coating covers the electrically conductive elements in part.

A fully insulated tip unit (1) for a lightning protection system for a wind turbine blade (2) is disclosed, comprising an electrically conducting tip (3), which tip consists of an external part (4) and an internal part (5), at least one side receptor base (6), an internal tip unit conductor (8), an insulated electric cable (9) for forming the outermost part of a down conductor (10), and a connection element (12) for establishing electrical connection between the insulated electric cable and the other conducting parts of the tip unit, wherein the internal part of the tip, the side receptor base(s), the internal tip conductor, the connection element and one end of the insulated electric cable are all embedded by casting in an insulating material (13) leaving only the external part of the tip and the other end of the insulated electric cable uncovered by the insulating material. Furthermore, a wind turbine blade comprising such a tip unit is disclosed.

An equipotential bonding system can be provided for a lightning protection system that includes a mast assembly with an internal passageway that includes an internal surface, and a conductor that extends through the internal passageway. The equipotential bonding system can include a deflection member that is disposed at least partly within the internal passageway. The deflection member can be configured to urge the conductor into contact with the internal surface to form a conductive pathway between the mast assembly and the conductor.

A lightning protection system for a tower of a wind turbine is provided. The tower includes a reinforced concrete tower wall in which a plurality of electrically conductive structural reinforcing elements are embedded during construction. The lightning protection system includes a plurality of the structural reinforcing elements connected in an electrically conductive manner with each other and with a ground terminal. Further, a method of incorporating such a lightning protection system in a reinforced concrete tower, and a wind turbine with such a lightning protection system is provided.