To limit the probability of unauthorized access to electrical equipment that controls lighting inside and outside buildings, which could lead to extinguishing of lighting fixtures, which could lead to inadequate lighting, which could lead to persons being unable to see obstructions, which could lead to persons tripping, colliding or falling, which could lead to harm to persons.
To limit the probability of unauthorized access to electrical-supply-related or other equipment, which could lead to electric shock, which could lead to harm to persons.