Technical training for stringing construction of transmission line project

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Construction checking calculation: calculate the setting out tension according to the traction section and the control file,   And listed in table form.

For example, in combination with the characteristics of the project, the overall scheme of stringing construction is to use power parachute to fly and lay out Ø 3.5 dinima primary guide rope, pull Ø 8 dinima rope, □ 9 guide rope, □ 15 guide rope and □ 25 traction rope step by step, and use □ 15 Guide rope to pull and tension the ground wire and OPGW, Use □ 25 traction rope to stretch the conductor with one traction and four tension 04 construction plan overall construction schedule: specify the stringing construction traction and tension sections and the stringing construction time of each traction and tension section.

02 project overview (1) brief project overview.

Technical parameters of conductor, ground wire and OPGW, insulator model parameters, hardware string type, important crossing, etc.

Material supply plan: specify the material supply schedule matching with the project stringing construction plan.

The number of test pieces shall not be less than 3, and one test piece is allowed to be made of connecting pipe and strain clamp.

Example: 4.1 overall construction schedule the planned stringing period of this bid section is ×××× year ×× month ×× Solstice ××××  year ×× month ×× Day, divided into ×× The average stringing time of each traction and tension section is ×× Days shall be reserved between each traction and stringing line × Transition preparation period of days 05 technical measures for construction scheme the technical measures for each working procedure shall be described in detail according to the stringing construction process.

Key analysis and pre control measures of quality control: combined with the characteristics of stringing construction, analyze the difficulties and key points of quality control, and put forward pre control measures.

Starting and ending points of the line, number of circuits, length, tower base, scope and content of stringing construction, etc.

Relevant drawings: list the design plane and section drawings related to stringing, tower list, hardware string diagram, conductor and ground wire installation diagram, jumper installation diagram, spacer installation diagram and other design drawings 2.

5.1 preparation before setting out: person (safety education, technical disclosure, work with certificate),   Machine (specification and quantity of tools and equipment shall be configured according to the scheme, inspection and maintenance), material (materials shall be accepted in place, and tensile test shall be qualified), method (preparation and approval of construction technical scheme, technical disclosure),   Ring (related crossing treatment, channel treatment, anti induced electricity measures).

(2) Introduce relevant design parameters.

(5) The construction difficulties can also be explained in combination with the characteristics of the project 03.

Thread Swivel Eye

Before crimping construction, press the bonding process to carry out inspection crimping test for conductor and ground wire, crimping pipe and supporting crimping die.

During construction, the construction site shall be reasonably selected and arranged according to local conditions to avoid large-scale leveling of the construction site, so as to meet the requirements of water and soil conservation.

Implementation of quality standards: put forward implementation measures according to the requirements of standard process library and mandatory provisions of State Grid Corporation of China 08 civilized construction and environmental protection measures environmental factor analysis and control measures: environmental protection measures shall be taken for the hazards that may cause pollution to the environment during construction, such as waste oil control, noise control, solid waste treatment, water and soil conservation, vegetation protection, etc.

(3) Describe relevant technical requirements.

Selection of tools and instruments: list all tools and instruments required for stringing construction, including specification and quantity.

The overall construction scheme briefly describes the laying mode of lead rope, the traction mode of conductor and ground wire, and the main process flow.

01 revised specification for hydraulic connection operation of conductor and ground wire……………………………………

The grip force of the test piece in the line shall not be less than 95% of the designed and calculated breaking force of the conductor and ground wire..

5.2 setting out pulley hanging: specify the setting out pulley hanging connection mode of tangent tower and tension tower in the way of illustration 06 construction safety assurance measures: define the safety management organization system, personnel, machines and tools and other guarantee measures.

02 crimping method 03 inspection test for edge distance dimension 04 after crimping.

Safety inspection requirements: specify the safety supervision network system and relevant requirements for regular and special inspection 07 organization guarantee of construction quality control measures: clarify the quality management organization system and relevant organization and management measures.

01 preparation description……………………………………

Construction safety risk identification, assessment and pre control measures: combined with the characteristics of stringing construction, analyze the possible hazards of each process operation, and put forward pre control measures.

Civilized construction and finished product protection measures: put forward specific measures from the aspects of improving civilized construction level and strengthening stringing finished products.

More contents reflecting green construction and green construction should be added 09 attached table (drawing) construction machinery: according to the construction scheme, clarify the technical parameters and performance of main construction machinery and equipment such as main tractor, main tension machine, traction rope, guide rope and paying off pulley to be used for construction.

The design parameters of the original project, the scope of reconstruction construction and relevant parameters are added, such as the demolition of poles and towers and the construction of new poles and towers.

Personnel organization: clarify personnel organization and post responsibilities.

Environmental protection measures: put forward corresponding environmental protection measures in combination with the characteristics of stringing construction.

(4) Reconstruction works.

1 outline requirements of stringing construction scheme template 00……………………………………

Line direction and tower leg number, the file number of conductor and ground wire not allowed to be connected, the inverted tower number of tension insulator, the layout position of ground wire and OPGW, the phase layout of conductor, the hanging rack position of linear angle tower, the cross arm position of transposition tower, the special requirements for hardware string connection or conductor and ground wire installation in the design drawing, the provisions on accessory installation bolts, threading nails, insulator bowl opening orientation, etc.