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1. WO2020109226 - A SUBSEA FUSE ASSEMBLY

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[ EN ]

CLAIMS

1. A subsea fuse assembly (10) comprising

an enclosure (11) filled with a dielectric fluid (80) and provided with an equalization opening (22, 32) in a wall (20, 30) of the enclosure (11), the enclosure (11) being of an electrically conductive material,

a flexible element (40) sealing the equalization opening (22, 32) in a fluid tight manner,

a first electric conductor (61) extending into the enclosure (11) through a lead-through (70) positioned in a wall (15) of the enclosure (11),

a second electric conductor (62) extending within the enclosure (11), a fuse (50) connected between the first electric conductor (61) and the second electric conductor (62) within the enclosure (11),

characterized in that

the second electric conductor (62) is attached to an inner surface of a wall (14) of the enclosure (11),

a third electric conductor (63) extending outside the enclosure (11) is attached to an outer surface of a wall (14) of the enclosure (11), whereby

an electrically conductive path is provided between the second electric conductor (62) and the third electric conductor (63) through the enclosure (11).

2. The subsea fuse assembly according to claim 1, wherein the second electric conductor (62) and the third electric conductor (63) is attached to the same wall (14) of the enclosure (11).

3. The subsea fuse assembly according to claim 2, wherein the wall (15) through which the first electric conductor (61) passes in the enclosure (11) is opposite to the wall (14) on which the second electric conductor (62) is attached.

4. The subsea fuse assembly according to any of claims 1 to 3, characterized in that the flexible element (40) is a membrane.

5. The subsea fuse assembly according to claim 4, wherein the membrane (40) is selected from the group comprising a rubber membrane, a nitrile rubber membrane, a thermoplastic polyurethane membrane, a membrane comprising polyester filaments, a membrane comprising polyvinyl chloride, and a butyl rubber membrane.

6. A subsea installation comprising

a pressure compensated main tank (110) filled with a dielectric fluid (160),

an electric component (100) submerged in the dielectric fluid (160) in

the main tank (110),

a subsea fuse assembly (10) according to any of claims 1-5, the subsea fuse assembly (10) being submerged in the dielectric fluid (160) in the main tank (110).