T/CES 072-2021 Active Group standards

T/CES 072-2021 Helicopter suspended live inspection operation technical guidelines for overhead transmission lines

Publish Date: 2021-09-28 Implement Date: 2021-09-30 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 072-2021

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: Energy, nuclear technology

ICS Name: \nTransmission lines and distribution lines

Publish Date: 2021-09-28

Implement Date: 2021-09-30

Scope

Scope: This document specifies the general requirements, operational procedures, implementation measures, and safety emergency measures for helicopter live-line inspection and maintenance operations. This document applies to helicopter live-line inspection and maintenance operations for 500 kV to 1,000 kV AC and ±500 kV to ±1,100 kV DC transmission lines at altitudes of no more than 1,000 m, using manned helicopters. Other voltage levels and altitudes shall be implemented as references. Main technical content: The standard primarily covers the general requirements, operational procedures, pre-operation preparations, work permits, takeoff checks, basket/personnel suspension, basket (suspended cable) entering the work position, conducting inspection and maintenance tasks, basket (suspended cable) exiting the work position, work termination, and safety emergency measures. The standard consists of 16 chapters, with the main structure and content as follows: - Chapter 1: Scope, which specifies the scope of application of this standard. - Chapter 2: Normative references and documents. - Chapter 3: Terms and definitions. - Chapter 4: General requirements for operations. - Chapter 5: Main operational procedures. - Chapter 6: Pre-operation preparations. - Chapter 7: Work permit requirements. - Chapter 8: Basket/personnel suspension requirements. - Chapter 9: Approaching the work site. - Chapter 10: Deploying to the work position. - Chapter 11: Conducting inspection and maintenance tasks. - Chapter 12: Exiting the work position. - Chapter 13: Returning the helicopter to the landing point. - Chapter 14: Work termination. - Chapter 15: Safety emergency measures. - Appendix A: Informative appendix - Inspection task details table. - Appendix B: Informative appendix - Schematic diagram of helicopter live-line inspection and maintenance operations. - Appendix C: Normative appendix - Arrangement forms and potential entry methods of overhead transmission lines for UHV AC and DC lin