4Application of Regulation

4 Application of Regulation

4 Application of Regulation

(1) This Regulation does not apply to—

(a) a galvanic anode system installed to protect a compact structure, if the maximum current flowing through the system does not exceed 250 milliamperes, or

(b) a galvanic anode system that has been installed to protect another primary structure, if—

(i) the maximum current flowing from a single anode bed does not exceed 250 milliamperes, and

(ii) the total current output from the system does not exceed 250 milliamperes for each 500 metres of the length of the structure along its greatest dimension, or

(c) a corrosion protection system installed to protect the internal surface of a water storage tank, reservoir or other similar structure for storing water if the structure isolates the system current from the external environment, or

(d) a corrosion protection system installed to protect marine vessels that are not permanently moored, or

(e) a corrosion protection system installed on a fixed offshore structure not connected with land above sea level, or

(f) a corrosion protection system installed in a fresh or sea water environment if the anode is permanently—

(i) fixed to the primary structure, and

(ii) submerged below the low water mark.

(2) This Regulation applies to all other corrosion protection systems.

(3) In this clause—

compact structure means a structure, including a storage tank, if the greatest dimension of height, length or breadth, is no greater than 5 times the size of the smallest of those dimensions.

galvanic anode system means a corrosion protection system that operates by means of an electrochemical reaction in which a metallic anode corrodes.