Abstract: A method of manufacturing a last chance screen for an aircraft engine includes forming an array of holes through a metal sheet with a wire electrode using electrical discharge machining. The array of holes comprises a plurality of holes. Each hole of the plurality of holes comprises a first end and a second end and is surrounded by a wall section such that the last chance screen is defined by the plurality of holes and the plurality of wall sections. The first and second end of each hole are widened by either applying a flow of an abrasive flow medium to the array of holes in two directions or using a conical sinker electrode on either side of the metal sheet. Shaping the first and second end of each hole results in an airfoil-shaped cross-section of each wall section.

Abstract: A cable termination assembly for testing the quality of insulation surrounding a power cable has one termination design to fit a large range of cable constructions, does not require different insulation shield cut-back distances, provides a secure electrical connection, and is environmentally friendly. A cable grip assembly is attached to an exposed conductor. The bottom outer surface of an inner cup is attached to the inner bottom surface of an outer cup wherein the inner cup is fully contained in the outer cup. When the two cups are attached, the cable grip assembly is mateably connected into the top of the inner cup and the outer cup is filled with a high dielectric strength liquid covering the inner cup and the cable grip assembly. After the high dielectric strength liquid has been added, a voltage is applied and the partial voltage discharge of the power cable is measured.

Abstract: A cable termination assembly for testing the quality of insulation surrounding a power cable has one termination design to fit a large range of cable constructions, does not require different insulation shield cut-back distances, provides a secure electrical connection, and is environmentally friendly. A cable grip assembly is attached to an exposed conductor. The bottom outer surface of an inner cup is attached to the inner bottom surface of an outer cup wherein the inner cup is fully contained in the outer cup. When the two cups are attached, the cable grip assembly is mateably connected into the top of the inner cup and the outer cup is filled with a high dielectric strength liquid covering the inner cup and the cable grip assembly. After the high dielectric strength liquid has been added, a voltage is applied and the partial voltage discharge of the power cable is measured.