(3)Protection against lightening. - Protection from lightening shall be provide for-(a)buildings in which explosive or highly flammable substances are manufactured, used, handled or stored;(b)storage tanks containing oils, paints or other flammable liquids;(c)grain elevators;(d)buildings, tall chimneys or stacks where flammable gases, fumes, dust or lint are likely to be present; and(e)substation buildings and out-door transformers and switch yards.
