NOTICE

• 목록
• 답변
• 글쓰기
• 게시판 리스트 옵션
  • 수정
  • 삭제

FIG. 12 exhibits a series of photographs for 2 different cables 1200 (left) and seven-hundred (right). As proven in FIG. 12, the cable 700 with the cushion layer 760 lacks the sharp, cut-like indentations of the cable 1200 with the braided fibers 1260. Within the photographs associated with the cable 700, a comparatively straight, longitudinal line is an artefact from a knife used to cut the cushion layer 760 for its removing to expose the lead (Pb) barrier layer. As to materials price, the cable 700 of FIG. 12 can exhibit lesser materials value when compared to the cable 1200 of FIG. 12. As extrusion can make the most of a raw base polymer, the cost of buying a resin that has been formed right into a fiber or tape might be averted, because the resin might be purchased in raw materials pellet kind for a lowest doable materials value. For example, indentations in the lead (Pb) barrier layer for the cable 700 do not include sharp edges from an armoring process as shown for the cable 1200. Further, the shapes of the lead (Pb) barrier layers for the cable seven-hundred are considerably circular as originally assembled previous to the armoring process; whereas, for the cable 1200, the shapes are distorted.

In some round cable embodiments, two or more individual coated conductors may be twisted together earlier than armor is utilized. Ignoring the knife lower, the difference is substantial between the two approaches. However, line speeds could also be slower than with a number of different approaches (e.g., to allow cure to finish). Given the foregoing data, XLPE annealing at ambient conditions is achieved in about one month and is achieved in sizzling water or steam for 12 hours at approximately 80 levels C. (e.g., to finish the curing course of). As proven in the plot 1400, the curing course of has a slight effect on each the melting level and melting enthalpy of XLPE. Per the plot 1600, there's a plateau within the storage modulus at approximately 150 degrees C. for the pattern annealed for one month at room temperature; a much like that of the totally cured pattern. However, then again, the modulus considerably increased and the strain decreased by adding PP and talc. FIG. 22 reveals a plot 2200 of the effect of PP and talc on the plateau modulus of fully cured XLPE. As an example, an extrudable material can include crosslinkable polyethylene and polypropylene and/or talc.

For instance, crosslinking can involve chemically reacting polyethylene polymer in a method to induce everlasting chemical bonding between polymer chains. PET is a thermoplastic polymer resin of the polyester family. As to electron beam crosslinking (E-beam crosslinking or EBC), such a processes utilized a centered electron beam that may take away hydrogens from a most important polymer chain to create free radicals that can provoke crosslinking. Parameters of an armoring process can embrace force, pitch and overlap as well as, for example, pace. As a energy cable could also be better than one hundred meters in size, or better than 1,000 meters in length, reductions in a cross-sectional thickness of lead (Pb) can allow for substantial discount in weight, which, in flip, can facilitate manufacturing, transport, deployment, retrieval, and many others. Further, a reduction in an quantity of lead (Pb) may be environmentally favorable as well. For example, a cable that includes cushion layers could also be made to be flatter than a cable that doesn't include such cushion layers. For example, a cable and/or cable supplies might be tested by publicity to brine (e.g., from about 1 % to about 5 % salt in water), which may approximate seawater or different types of saline environments.

As to a reel, a reel generally is a cylindrical structure (e.g., a cylinder) having a diameter and an axial size onto which cable could be wound where the cable is wound flat to a floor of the cylinder. Such a power cable can include an armor layer about an outer floor of the protecting layer. An ESP cable that included the aforementioned PET braided materials was topic to brine in a stress vessel for a interval of days (e.g., low voltage armored power cable 7 days in a stress vessel at 240 degrees C.). As an example, a check may be performed in a pressure vessel that includes brine the place at least a portion of a cable and/or a number of cable materials may be submersed within the brine. As shown in FIG. 10, the cable 1000 includes a conductor 1010, insulation 1030, a lead (Pb) barrier layer 1050 and armor 1080. Arrows in FIG. 10 represent drive as could also be utilized throughout an armoring process.