T/CES 050-2020 Active Group standards

T/CES 050-2020 Specification for Single-side Power Shutdown and Replacement of OPGW Optical Cable System on 220kV Double-circuit Lines with the Same Pole

T/CES 050-2020

Publish Date: 2020-10-26 Implement Date: 2020-10-29 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/CES 050-2020

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Electrician

ICS Name: Other equipment related to the transmission and distribution networks

Publish Date: 2020-10-26

Implement Date: 2020-10-29

Scope

Scope: This standard specifies the general principles, operational procedures, safety precautions, and measures for replacing OPGW optical cable systems on one side of a 220kV double-circuit line during a power outage. This standard applies to 220kV double-circuit lines. When one circuit conductor is powered off and the other is powered on, construction machinery such as tensioning machines are used to replace the OPGW optical cable on the powered-off side while the other side remains powered, under predefined relaxed tension conditions. Main technical content: This specification stipulates the inspection and replacement of OPGW optical cables on 220kV double-circuit lines. The technical requirements mainly include the applicable scope of the operation, personnel deployment, tool and equipment provision, operational procedures, and safety precautions and measures. The applicable scope specifies the OPGW optical cable status and tower type suitable for the operation; personnel deployment stipulates the qualifications and number of workers involved in the construction; tool and equipment provision specifies the tool and equipment configuration and site arrangement used in the operation; operational procedures specify the key construction processes during live operation; and safety precautions and measures stipulate the safety protection requirements for live operation. The operational procedures specification mainly includes site survey, inspection and verification, tool storage and inspection, pre-operation preparation, and operation steps.