A surface protection composition forms a uniform film, and a terminal fitted electric wire coated with the composition, the composition containing (a) a phosphorus compound represented by the formula (1) in an amount of 0.1 to 10 mass % in terms of phosphorus element, (b) a metal-containing compound in an amount of 0.1 to 10 mass % in terms of metal element or an amine compound in an amount of 0.1 to 5.0 mass % in terms of nitrogen element, (c) a (meth)acrylate compatible with a solvent with a solubility parameter of 8.2 or lower and has a hydrocarbon chain with 4 or higher carbon atoms in an amount of 1.0 to 70 mass %, and (d) at least one of a photopolymerization initiator and a thermal polymerization initiator in an amount of 0.1 to 10 mass %, with respect to the total amount of the composition.

An electrical grounding assembly includes an electrically conductive metal grounding plate, and a corrosion-protective jacket enclosing the grounding plate. The jacket is electrically conductive and water impermeable. The electrical grounding assembly further includes an electrically conductive line having a first end in electrical contact with the grounding plate and enclosed in the jacket, and an opposed second end outside of the jacket for connection to a structure to be electrically grounded.

Methods and apparatus are disclosed. The apparatus includes a substantially cylindrical mount body (350) comprising a first open mouth at a first end of the cylindrical body (350) and a further open mouth at a remaining end of the cylindrical body, a substantially cylindrical inner surface, and an outer surface that includes a plurality of spaced apart substantially parallel recessed regions that extends circumferentially around the body, wherein the cylindrical body (350) is tapered at each end and at least one securing element is located between the recessed regions.

An electric submersible pumping system includes a motor, a pump driven by the motor, and a cable that provides electrical power to the motor. The cable includes a conductor and an insulator surrounding the conductor. The insulator includes a first layer surrounding the conductor and a second layer surrounding the first layer. The insulator may include an H.sub.2S scavenger and an H.sub.2S reactant in the first or second layers surrounding the conductor. The cable optionally includes a sub-insulator layer that includes a metal or nitride coating applied directly to the conductor.

Electrical cables and methods of forming such cables are disclosed, comprising a layer of a two dimensional material. In some embodiments, the cable is a subsea cable. In other embodiments, the cable may be an overhead power cable or a cable for forming electrical windings in a motor, generator or transformer. In some embodiments, the cable comprises a conductive core for carrying an electric current, and the layer of two dimensional material is disposed on the conductive core. In some embodiments, the subsea cable is a subsea power cable, umbilical cable or telecommunications cable. In some embodiments, the two dimensional material is configured to be superconducting or near-superconducting.

A flexible pipe body and a method of providing electrical continuity are disclosed. The flexible pipe body comprises a first armour layer formed from a helical winding of a metal tape element, a further armour layer formed from a helical winding of a further metal tape element, and at least one intermediate layer between the first and further armour layers, said intermediate layer comprising a helically wound electrically insulating tape element (800.sub.0, 800.sub.1, 800.sub.2, 800.sub.3, 800.sub.4) and a helically wound electrically conductive tape element (810.sub.0, 810.sub.1, 810.sub.2, 810.sub.3, 810.sub.4).

An anti-corrosive material includes an ultraviolet curable resin including, as a main component, a polymerizable compound including a photopolymerizable (meth)acrylate monomer and a photopolymerizable (meth)acrylate oligomer. The polymerizable compound includes a combination of a monofunctional (meth)acrylate monomer and a bifunctional (meth)acrylate monomer, or a combination of at least one of a monofunctional (meth)acrylate monomer or a bifunctional (meth)acrylate monomer and at least one of a trifunctional (meth)acrylate monomer or a polyfunctional (meth)acrylate monomer having four or more functional groups. The photopolymerizable (meth)acrylate oligomer has a polycarbonate diol-derived structure as a main skeleton. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less.

An anti-corrosive material contains an ultraviolet curable resin including a polymerizable compound including at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less. The anti-corrosive material has an elongation rate of 60% or greater as a result of heating at 120° C. for 4,000 hours after curing.

An anti-corrosive material contains a ultraviolet curable resin including a polymerizable compound including at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer. The polymerizable compound includes a combination of certain substances. The photopolymerizable (meth)acrylate oligomer contains a low molecular-weight (meth)acrylate oligomer. The polymerizable compound contains a certain cross linking density increasing agent. 35 to 100 parts by mass of the cross linking density increasing agent are contained for 100 parts by mass of the ultraviolet curable resin. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less, the viscosity being measured at 25° C. according to JIS Z8803.

An anti-corrosive material includes an ultraviolet curable resin including a polymerizable compound and a photopolymerization initiator. The polymerizable compound includes at least one of a photopolymerizable (meth)acrylate monomer or a photopolymerizable (meth)acrylate oligomer. The photopolymerization initiator includes a combination of a first polymerization initiator and a second polymerization initiator. The first polymerization initiator is at least one of a benzyl ketal-based photopolymerization initiator or a hydroxyalkylphenone-based photopolymerization initiator, and the second polymerization initiator is at least one selected from a group consisting of an aminoalkylphenon-based photopolymerization initiator, an acylphosphine oxide-based photopolymerization initiator, and an oxime ester-based photopolymerization initiator. A mass ratio of the first polymerization initiator and the second polymerization initiator is 2:0.1 to 0.5. The anti-corrosive material has a viscosity of 18,900 mPa.Math.s or less.