公开(公告)号：WO2021232026A1

公开(公告)日：2021-11-18

申请号：PCT/US2021/033498

申请日：2021-05-20

Applicant: CTC GLOBAL CORPORATION

Inventor： WEBB, William ,  DONG, Xiaoyuan ,  WONG, Christopher ,  BOSZE, Eric

IPC: H01B7/18 ,  H01B7/02 ,  H02G7/02

Abstract: Fiber-reinforced strength elements that include sensing strands and overhead electrical cables incorporating such strength elements. The sensing strands may include conductive sensing wires or radiopaque strands. Utilizing interrogation techniques such as electrical resistance measurements or x-ray interrogation, fractures in the sensing strands may be detected that are indicative of fractures or similar defects in the strength elements.

公开(公告)号：WO2021222663A1

公开(公告)日：2021-11-04

申请号：PCT/US2021/030016

申请日：2021-04-29

Applicant: CTC GLOBAL CORPORATION

Inventor： WEBB, William ,  DONG, Xiaoyuan ,  WONG, Christopher ,  PILLING, Ian M. ,  PILLING, Douglas A.

IPC: H01B7/18 ,  H01B9/00 ,  H01B11/22

Abstract: Strength member assemblies including a strength member and at least one glass optical fiber operatively coupled to the strength member. The optical fiber is coupled to the strength member in a manner such that mechanical strains experienced by the strength member are transferred to the optical fiber so that the optical fiber may be interrogated to assess the state of the strength member.

公开(公告)号：WO2021127659A1

公开(公告)日：2021-06-24

申请号：PCT/US2020/066490

申请日：2020-12-21

Applicant: CTC GLOBAL CORPORATION

Inventor： DONG, Xiaoyuan ,  WEBB, William ,  PILLING, Ian M. ,  PILLING, Douglas A. ,  WONG, Christopher

IPC: H02G7/02 ,  H02G1/02 ,  H02G15/06 ,  H02G15/08

Abstract: Electrical line hardware such as termination arrangements and splices for use with overhead electrical cables that enable the interrogation of the overhead electrical cables through the hardware. The hardware includes at least one port to facilitate access to the strength member of the electrical cable so that interrogation instruments may operatively couple to the strength member and to interrogation elements such as optical fibers associated with the strength member. The interrogation may occur after the overhead electrical cable has been fully tensioned and secured by the hardware, e.g., secured to a support tower.

公开(公告)号：WO2020181248A2

公开(公告)日：2020-09-10

申请号：PCT/US2020/021535

申请日：2020-03-06

Applicant: CTC GLOBAL CORPORATION

Inventor： DONG, Xiaoyuan ,  WEBB, William

IPC: G01M11/08

Abstract: Systems and methods for the interrogation of an overhead electrical cable using a coherent light source, such as a laser. The systems and methods may include the isolation of one or more optical fibers that are embedded in or attached to a strength member of the electrical cable, and the connection of an interrogation device such as an OTDR device to the optical fibers for the purpose of interrogating the overhead electrical cable to determine a state of the cable, such as temperature or mechanical strain.

公开(公告)号：WO2019168998A1

公开(公告)日：2019-09-06

申请号：PCT/US2019/019853

申请日：2019-02-27

Applicant: CTC GLOBAL CORPORATION

Inventor： DONG, Xiaoyuan ,  WEBB, William ,  WONG, Christopher ,  PILLING, Ian

IPC: G01M11/00

Abstract: Systems, methods and tools for the interrogation of fiber-reinforced composite strength members to assess the structural integrity of the strength members. The systems and methods utilize the transmission of light through optical fibers that are embedded along the length of the strength members. The inability to detect light through one or more of the optical fibers may be an indication that the structural integrity of the strength member is compromised. The systems and methods may be implemented without great difficulty and may be implemented at any time in the life cycle of the strength member, from production through installation. The systems and methods have particular applicability to bare overhead electrical cables that include a fiber-reinforced strength member.