摘要:
An electric motor assembly configured for use in a downhole pumping system includes a number of electrically conductive components that are insulated from fluids, mechanical abrasion, electrical current and electrical grounds using an advanced polyimide film. Preferred polyimide films include poly(4,4'-oxydiphenylene-pyromellitimide) and biphenyl-tetracarboxylic acid dianhydride (BPDA) type polyimide films. Magnet wire, stator laminates, stator coil end turns, motor leads and power cables can all be insulated with the selected polyimide film.
摘要:
Polymer compositions composed of a polyethylene resin (e.g., LLDPE), carbon black and an olefin block interpolymer are provided, which are useful for, among other things, the production of wire and cable jacketing that possess an increased high temperature rating, flexibility and comparable ease of removal of the jacket from the cable core.
摘要:
Die Erfindung betrifft eine Schutzvorrichtung, die leicht montierbar ist, zum Schutz von Transportleitungen vor Hitze, Abrieb, Klappern, Schnitt, Stich, leichtem Crash und Biss. Weiterhin betrifft die Erfindung eine Transportvorrichtung, bestehend aus einer oder mehreren Transportleitungen und einer Schutzvorrichtung.
摘要:
An improved high electrical current conductive marine sweep cable particularly for use in minesweeping application. The cable includes an elongated flotation core (15), which may include an axial tensile member (12), electrical conductors (13) with thin insulation (14) that are juxtaposed to the outer surface of the core, and an outer jacket (16) surrounding the associated insulated conductors and core. The cable is designed to transfer heat generated by the high current to the ambient seawater as it is pulled along the water surface in order to prevent cable temperature from rising above a preselected maximum value and causing degradation of the cable insulation. This design includes thin insulation surrounding each conductor, which provides high thermal conductivity therethrough, and openings in the outer jacket, which permits seawater to enter the jacket radially and thus promote cooling.
摘要:
본 발명은 전력 케이블에 관한 것이다. 구체적으로, 본 발명은 친환경적이고, 내열성 및 기계적 강도가 우수한 동시에, 이들 물성과 상충관계(trade-off)에 있는 유연성, 굴곡성, 내충격성, 내한성, 포설성, 작업성 등이 우수한 절연재료로 이루어진 절연층을 갖는 전력 케이블에 관한 것이다.