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MHT1064.2-2017: Safety code of power working with the helicopter. Part 2-Inspection operation
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Safety code of power working with the helicopter. Part 2-Inspection operation
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Basic data | Standard ID | MH/T 1064.2-2017 (MH/T1064.2-2017) | | Description (Translated English) | Safety code of power working with the helicopter. Part 2-Inspection operation | | Sector / Industry | Civil Aviation Industry Standard (Recommended) | | Classification of Chinese Standard | V53 | | Classification of International Standard | 03.220.50 | | Word Count Estimation | 10,162 | | Date of Issue | 2017-01-02 | | Date of Implementation | 2017-04-01 | | Regulation (derived from) | Civil Aviation Industry Standards Announcement No. 1 of 2017 | | Issuing agency(ies) | Civil Aviation Administration of China | | Summary | This standard stipulates the general requirements for the inspection of overhead transmission lines by manned helicopters (hereinafter referred to as helicopters), the safety requirements of different inspection methods, and the work requirements before and after operation. This section applies to the inspection of overhead transmission lines by manned helicopters equipped with special equipment. | MHT1064.2-2017: Safety code of power working with the helicopter. Part 2-Inspection operation---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Safety code of power working with the helicopter-Part 2.Inspection operation
ICS 03.220.50
Civil Aviation Industry Standard of the People's Republic of China
Safety Regulations for Helicopter Electric Operation
Part 2.Inspection work
2017 – 01 – 02 released
2017-04-01 Implementation
Issued by Civil Aviation Administration of China
Foreword
MH/T 1064 "Safety Regulations for Helicopter Electric Operation" is divided into the following seven parts.
--Part 1.General requirements;
--Part 2.Inspection operation;
--Part 3.Laser scanning operation;
--Part 4.Live work;
--Part 5.Electric water washing operation;
--Part 6.Hoisting and assembly tower operations;
--Part 7.Unfold the guide rope operation.
This part is part 2 of MH/T 1064.
This section was drafted in accordance with the rules given in GB/T 1.1-2009.
This part was proposed by the Transportation Department of the Civil Aviation Administration of China.
This part was approved by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China.
This part is under the jurisdiction of the China Academy of Civil Aviation Science and Technology.
Drafting organizations of this section. The Second Research Institute of Civil Aviation Administration of China, State Grid General Aviation Co., Ltd.
The main drafters of this section. Yan Fengshuo, Shang Kejia, Wang Bingxi, Tang He, Liu Weidong, Kong Lingyu, Ma Li, Wenhua.
Safety Regulations for Helicopter Power Operation Part 2.Inspection Operation
1 Scope
This part of MH/T 1064 stipulates the use of manned helicopters (hereinafter referred to as helicopters) to inspect overhead transmission lines
General requirements, safety requirements of different inspection methods, and work requirements before and after operations.
This section applies to the inspection of overhead transmission lines by manned helicopters equipped with special equipment.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB 26859 Electric Safety Work Regulations (Part of Power Lines)
DL/T 288 Technical Guidelines for Helicopter Inspection of Overhead Transmission Lines
DL/T 289 Helicopter inspection operation warning signs for overhead transmission lines
RTCA/DO-160 Aviation Radio Technology Committee/Airborne Equipment Environmental Conditions and Test Procedures
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Helicopter inspection
Use helicopters to carry infrared, ultraviolet, visible light and other equipment to the transmission line related facilities (main body, auxiliary facilities) and channel environment
Conduct inspections and inspections.
3.2
Helicopter optoelectronic pod
Integrate one or more photoelectric sensors (such as visible light camera, visible light camera, infrared thermal imager, ultraviolet imager, etc.) in the top
The screw stabilized platform can be mounted on the enclosed equipment under the helicopter body.
3.3
Control and display equipment
A complete set of equipment used to receive and display the status and data of the optoelectronic pod, and to control the task of the optoelectronic pod, generally including a display and control
3.4
Adapter bracket
A bracket that realizes the mechanical connection between the pod shock absorber and the aircraft bracket so that the pod installation hole position and the aircraft installation hole position can be matched.
3.5
Visible inspection
Use helicopters to carry relevant visible light equipment to inspect the main body of the transmission line, auxiliary facilities and line corridors and record relevant information.
3.6
Infrared inspection
Use helicopter-mounted thermal imaging cameras to detect temperature and record phases of wire connection points, clamps, insulators and other components of transmission lines
Related information.
3.7
UV inspection
Use helicopter-mounted ultraviolet imager to perform corona detection on wires, insulators and fittings of transmission lines and record relevant information
interest.
3.8
Fault inspection
After the line fails, the line inspection is carried out to find out the line fault point, the cause of the fault and the fault situation.
3.9
Post-disaster inspection
After severe weather and natural disasters occur, the operation status, damage and environmental changes of the corridors of the section of the line
Inspections.
4 General requirements
4.1 Personnel
4.1.1 The captain performing helicopter inspection operations shall meet the following requirements.
--The total flight time of the helicopter not less than 600 h;
--Not less than 100 hours of helicopter inspection flight experience;
--Have the flight qualification of the operating model, and complete the technical training for landing at ultra-low altitude and temporary outdoor landing sites, and have the ability to fly in mountains,
Low-altitude flight, hovering, hovering and other stable flight technology level.
4.1.2 The personnel on board performing helicopter inspection operations shall meet the following requirements.
-Meet the requirements of GB 26859 for staff in terms of physical conditions, safety production knowledge and skills, electrical knowledge and business skills, etc.
Requirements;
--Familiar with aviation, meteorology, geography and other related professional knowledge, and have undergone professional training in helicopter inspection operations.
4.2 Equipment
4.2.1 The photoelectric pod of a helicopter shall include a gyro stabilized platform, photoelectric sensors, display and control equipment and supporting software.
4.2.2 The photoelectric sensor of the helicopter should be one or more groups of visible light camera, visible light camera, infrared thermal imager, ultraviolet imager, etc.
Together.
4.2.3 The electromagnetic compatibility design of the electro-optical pod of the helicopter shall comply with the relevant regulations of RTCA/DO-160.The distance between AC and DC transmission lines of 500 kV and above
It should be able to be used normally when the road is 20 m.
4.2.4 The gyro stabilized platform shall have a self-locking function.
4.2.5 The pod adapter bracket (shock-absorbing bracket) should have the function of vibration isolation, and the mechanical strength should meet the requirements for pod mounting.
4.2.6 The pod adapter bracket (damping bracket) should be universal and interchangeable between different helicopter platforms.
4.2.7 Operating helicopters should be equipped with navigation, flight records, remote real-time monitoring and command and hazard warning systems.
4.3 Operating environment and weather
4.3.1 For mountainous operations, the visibility under clouds should be no less than 3 km, and the wind speed should be no more than 5 m/s. For plain operations, the visibility under clouds should not be less than
2 km, the wind speed should not exceed 8 m/s.
4.3.2 Under special or emergency conditions, if it is necessary to conduct inspections in severe weather, the site climate and working conditions
Safety measures can only be carried out after approval by the operator.
4.4 Personnel fatigue prevention measures
4.4.1 The working hours of crew members should not exceed 14 hours throughout the day.
4.4.2 During any continuous 24 hours, the accumulated flight time should not exceed 10 hours.
4.4.3 Within 7 consecutive days, the accumulated flight time should not exceed 40 hours.
4.4.4 In a calendar month, the accumulated flight time should not exceed 120 hours.
4.5 Warning signs for transmission lines
Warning signs should be installed on transmission lines where helicopter inspections are carried out. The production and installation of signs should be implemented in accordance with DL/T 289.
5 Preparation before homework
5.1 Preparation stage
5.1.1 The crew should formulate a production mission statement according to the operation project, and formulate a helicopter inspection plan to determine the inspection method and focus.
5.1.2 The helicopter model should be selected according to the characteristics and requirements of the operation project (see Appendix A), and the configuration of the airborne instruments and equipment can be found in Appendix B.
5.1.3 The data of the line to be inspected shall be collected, including the list of poles and towers, the external insulation account, the longitude and latitude coordinates of the poles, etc., and the specific coordinates
Store it in GPS for chart drawing and navigation calculation.
5.2 Direct preparation phase
5.2.1 The crew should understand the flight dynamics of the flight area and obtain the latest aeronautical information, communications and navigation data.
5.2.2 The crew should go through relevant procedures such as the flight mission statement and the flight release form.
5.2.3 Aircraft maintenance personnel should conduct pre-takeoff inspections of the helicopter to ensure that the helicopter is in a state of airworthiness.
5.2.4 On-board operators should install and start-up the inspection equipment to ensure the normal operation of the equipment.
5.2.5 The support personnel should understand the task and schedule, and inspect and prepare the support vehicles.
6 Work implementation
6.1 Types of inspection
Inspection operations are divided into general inspection, fault inspection and special inspection (disaster inspection and other special inspections).
6.2 Work safety
6.2.1 During the disaster inspection, helicopters should be selected reasonably according to the site conditions, and necessary emergency devices should be installed, such as fuel waterproof system,
Rotor deicing device, stabilizing device, etc.
6.2.2 During the disaster inspection, the helicopter pilot should pay attention to observe and judge the weather trend, actively contact the ground, and obtain the weather along the route.
forecast.
6.2.3 Other special patrol inspections should be based on task requirements, select and install corresponding equipment, determine the technical parameters of flight and patrol operations, and formulate special patrol inspections
Work plan.
6.2.4 After the helicopter arrives at the patrol area, first verify the name of the patrol route and the number of the tower, and observe the terrain and geomorphology around the patrol route.
And choose to enter the working position with an angle of about 45° to the line.
6.2.5 During the inspection operation, it should be based on the requirements of the inspection operation entrusting party, combined with the geographical environment, meteorological conditions and helicopter
Performance and limitations, reasonably adjust the operating altitude and speed, and avoid the shadow area of the altitude-speed graph in the helicopter flight manual.
6.2.6 The hovering time should not exceed the limit specified in the helicopter flight manual, and generally should not exceed 3 minutes.
6.2.7 The minimum safe distance between the helicopter rotor and the line and tower should not be less than 15 m.
6.2.8 During inspection operations, the main pilot of the helicopter should be located on the side close to the line to be inspected, and the helicopter should not fly directly above the line for inspection.
6.2.9 During the inspection operation, if the helicopter needs to be transferred to the other side of the line, it should fly over the tower instead of crossing the stall.
6.2.10 When the distance between the sidelines of two adjacent circuits is less than 100 m (150 m in mountainous areas), it is not advisable for a helicopter to fly between the two circuits.
Air flight.
6.2.11 During the inspection operation, the helicopter should not hover over the substation or fly at low altitude.
6.2.12 When the helicopter is hovering for inspection, the helicopter should be hovering against the wind; if the helicopter attitude needs to be adjusted, the personnel on board should pay attention to the obstacles around the line.
Obstruction.
6.2.13 During inspection operations, it is not advisable for the helicopter to go uphill, downhill or hover at high altitude without remaining power.
6.2.14 Helicopter pilots should always be able to see the working route and know the direction of the route.
6.2.15 During the inspection operation, the helicopter should not blindly follow the line when the line sag is large or the line crosses.
6.2.16 When inspecting the lines arranged vertically on the same tower with multiple circuits, and the lower parts cannot be seen clearly, the helicopter should ensure flight safety.
The height can be lowered for inspection.
6.2.17 During the inspection operation, if the observation point is missed, the helicopter should turn to the outside of the line and re-enter, and should not fly backwards.
6.2.18 When the inspection site is in a narrow and long area or special terrain such as a large range or large drop, the pilot should follow the helicopter’s performance and meteorological conditions
Determine whether to continue flying, or adjust helicopter flight parameters.
6.2.19 The captain should adjust the flight altitude and flight speed according to the operating environment and electrical operation category, and implement it in accordance with DL/T 288.
6.3 Data Security
6.3.1 For related electronic documents and collected raw data, special storage devices should be set up, and media with good performance and high stability should be selected
As a storage device.
6.3.2 Data should not be processed on the mobile hard disk where the original data is stored.
6.3.3 Attention should be paid to data backup and storage to prevent data loss caused by equipment damage or human deletion. The original data should be well preserved,
Prevent leakage.
7 Work after homework
After the completion of the task, a flight commentary should be carried out. The main content includes but not limited to a summary of the flight situation on the day,
Evaluate the situation, flight safety and various guarantees, propose improvement measures for the problems found, and educate those who violate the rules and regulations
criticism.
AA
Appendix A
(Informative appendix)
Model selection
The main technical parameter requirements of helicopters performing inspection operations on overhead transmission lines are as follows.
- Rotor diameter. 9 m～15 m;
--Maximum load. 600 kg and above;
--Maximum level flight speed..200 km/h and above;
--Maximum range. 550 km and above;
--Maximum oil load. 280 kg and above.
The optional models for the inspection of overhead transmission lines are shown in Table A.1.
BB
Appendix B
(Informative appendix)
Basic configuration of airborne mission equipment
The basic configuration of airborne instruments and equipment is shown in Table B.1.
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