CSA B72:20

1 Scope 1.1 This Standard covers the protection from lightning of a) recreational, residential, institutional, medical, agricultural, industrial, commercial, military, and telecommunications buildings and structures; b) tall, slender structures such as smokestacks, silos, tanks, towers, masts, and poles; c) immobile property such as equipment, tents, fences, trees, and solar arrays; and d) high-risk structures with dangerous contents such as explosives and flammable goods. 1.2 This Standard covers the protection from lightning of structures housing electrical generation, transmission, and distribution systems, as well as structures housing communication systems, but not the equipment or installation requirements for such systems. 1.3 This Standard does not cover installation requirements for early streamer emission systems or charge dissipation/charge transfer systems. No recognized standards body or testing agency exists for Canadian installations of these devices.