.-(1) Cathodic protection system where employed shall be designed and installed in accordance with the current recognised practice and so maintained as-(a)not to affect adversely metallic bodies in the zone of protection; and(b)to eliminate the danger of sparking in a hazardous area.(2)The metallic structures, pipelines, valves, plants and associated equipments under cathodic protection shall not be broken for repair or maintenance unless a heavy gauge conducting cable is clamped to each side of the intended break for establishing between them an electrical bond and the cable shall remain clamped until repair or maintenance work is completed and the break rejoined.
