Electrical safety and lightning protection of medium voltage input and up to ±400 VDC output power system in ICT data centres and telecommunication centres

ITU-T K.118 - Requirements for lightning protection of fibre to the distribution point equipment - Modelling earth potential rise

ITU-T K.118 - Requirements for lightning protection of fibre to the distribution point equipment - Overview

Roofers face enough challenges; the importance of involving specialists for lightning protection systems to meet strict standards — and avoid potential issues with dissimilar metals and corrosion — is crucial for compliance.

A wind turbine blade with a lightning protection for a blade with a shell body has at least one lightning receptor arranged freely accessible in or on a surface of the shell body surface, and a lightning down conductor electrically connected to the lightning receptor and comprising an inner conductor made of electrically conductive material imbedded in a bedding insulation made of an electrically non-conductive material. The lightning down conductor further includes a first conductive layer having a resistance in the range of 10 to 10,000 Mega Ohm per meter (MΩ/m). The first conductive layer is located in a transverse distance from the inner conductor and being electrically isolated from the inner conductor.