公开(公告)号：US5711143A

公开(公告)日：1998-01-27

申请号：US566409

申请日：1995-12-01

申请人： Takeo Munakata ,  Jun Katoh ,  Naoshi Kikuchi ,  Naoyoshi Shimokura ,  Yuji Ishikubo

发明人： Takeo Munakata ,  Jun Katoh ,  Naoshi Kikuchi ,  Naoyoshi Shimokura ,  Yuji Ishikubo

IPC分类号： H01B5/10 ,  D07B1/06

CPC分类号： H01B5/104 ,  D07B2201/2086 ,  H01B5/006

摘要： An overhead cable provided with a plurality of segment strands of a sector-shaped cross-section twisted at the outermost layer and having grooves of a substantially arc-shaped cross-section at the surface at the adjoining portions of the segment strands. Also, a low sag, low wind load cable provided with tension-bearing cores comprised of strands having a linear expansion coefficient of -6.times.10.sup.-6 to 6.times.10.sup.-6 /.degree.C. and an elastic modulus of 100 to 600 PGa and with a plurality of sector-shaped cross-section segment strands twisted around the outermost circumference of the cable including the tension-bearing cores comprised of a super-high-heat resisting aluminum alloy or extra-high heat resisting aluminum alloy, grooves of a substantially arc-shaped cross-section being provided at the surface at adjoining portions of the twisted segment strands. This enables the wind load to be reduced. Further, a low wind load cable can be easily fabricated at a low cost. In addition, by using invar strands for the cores and using segment strands of a super-high heat resisting aluminum alloy or extra-high heat resisting aluminum alloy at the outermost layer, the sag at high temperatures can be greatly suppressed. Accordingly, even the amount of the sideways swinging caused when the overhead cable is struck by a strong wind from the lateral direction can be greatly suppressed together with the low wind load construction.

摘要翻译： 一种架空电缆，其设置有在最外层处扭曲的扇形横截面的多个分段股线，并且在分段股线的相邻部分处的表面处具有基本上为弧形的横截面的槽。 另外，一种低垂度，低风荷载电缆，其具有由线性膨胀系数为-6×10 -6〜6×10 -6 /℃，弹性模量为100〜600GGa以及多个 围绕电缆的最外周扭转的扇形横截面段绞线，包括由超高耐热铝合金或超高耐热铝合金构成的承载芯，其基本上为弧形 横截面设置在扭转的链节的相邻部分的表面处。 这样可以减轻风荷载。 此外，可以以低成本容易地制造低风载电缆。 此外，通过在最外层通过使用内芯和使用超高耐热铝合金或超高耐热铝合金的链段，可以大大抑制高温下垂。 因此，即使当架空电缆从横向方向被强风撞击时引起的侧向摆动的量也可以与低风荷载结构一起被极大地抑制。

公开(公告)号：US06331677B1

公开(公告)日：2001-12-18

申请号：US09308625

申请日：1999-10-28

申请人： Takeo Munakata ,  Naoshi Kikuchi ,  Takashi Shinohara ,  Hideo Banse ,  Takao Kaneko ,  Hiroji Akasaka ,  Yukikatsu Aida ,  Naoyoshi Shimokura ,  Yuji Ishikubo ,  Tetsuya Okada ,  Tamezo Suzuki

发明人： Takeo Munakata ,  Naoshi Kikuchi ,  Takashi Shinohara ,  Hideo Banse ,  Takao Kaneko ,  Hiroji Akasaka ,  Yukikatsu Aida ,  Naoyoshi Shimokura ,  Yuji Ishikubo ,  Tetsuya Okada ,  Tamezo Suzuki

IPC分类号： H01B508

CPC分类号： H01B5/104 ,  H01B5/006

摘要： An overhead cable includes an outermost surface formed by twisting together a plurality of segment strands. A plurality of spiral grooves form recesses having substantially rectangular cross-sections and are provided at intervals in a circumferential direction of either the outer surface of the segment strands or the outer surface regions of boundary portions where twisted segment strands adjoin each other. Thin segment strands and at least one thick segment strand form the outermost layer. A recessed portion is provided at one side surface among two surfaces of the segment strands forming the outermost layer, a projecting portion is provided at the other side surface, and the strands are twisted together so that the recessed portions and the projecting portions mate. The recessed and projecting portions formed at the two side surfaces of the segment strands mate with each other to form recess-projection mating portions, and the lengths of the contact of the recessed and projecting surfaces at the recess-projection mating portions is configured to be no more than 10% of the length of the recess-projection mating portions.

摘要翻译： 架空电缆包括通过将多个分段线扭转在一起形成的最外表面。 多个螺旋槽形成具有基本上矩形横截面的凹部，并且在分段线束的外表面或扭曲的线束彼此相邻的边界部分的外表面区域的周向间隔设置。 细链段和至少一个粗链段形成最外层。 在形成最外层的分段线束的两个表面中的一个侧表面处设置有凹部，在另一侧表面设置有突出部，并且将绞合线绞合在一起，使得凹部和突出部配合。 形成在分段线束的两侧面的凹凸部相互配合形成凹凸配合部，凹凸配合部的凹凸面的接触长度构成为 不超过凹部 - 突出配合部分的长度的10％。