Some causes are well-known and easily preventable. For example, Power transmission systems use arrestors and other devices to protect their system from lightni

Some causes are well-known and easily preventable. For example, Power transmission systems use arrestors and other devices to protect their system from lightning and other badness. Taking a hit may result in the device blowing apart, including hot metal bits. Knowing this, a regulatory agency may implement vegetation clearance rules around transmission towers, knowing that these are high-risk areas. If the initiation point for a fire is in an area that's supposed to be bare mineral soil (and maybe isn't), that's interesting.