Supporting engineering construction and equipment installation

The general contracting of power engineering construction covers many specific contents, mainly including the following aspects:

Construction preparation

• Technical preparation: familiarize yourself with the construction drawings and conduct drawing review; prepare construction organization design, construction plan and technical briefing, etc.

• Material preparation: purchase various types of power equipment and materials, such as transformers, switchgear, wires and cables, etc. according to the construction schedule, and ensure that their quality meets the requirements.

• Personnel preparation: organize construction management personnel, technical personnel and construction teams to conduct pre-construction training and safety education.

Foundation engineering construction

• Line foundation construction: including excavation and pouring of tower foundations, cable trench foundations, etc., to ensure that the stability and bearing capacity of the foundation meet the design requirements.

• Substation foundation construction: carry out the foundation construction of substation buildings, such as the main transformer foundation, distribution room foundation, etc., and do a good job in the construction of the grounding system.

Equipment installation

• Electrical equipment installation: install electrical equipment such as transformers, circuit breakers, disconnectors, mutual inductors, switchgear, etc., debug and test the equipment, and ensure that its performance meets the specifications and design requirements.

• Transmission line erection: Assemble poles and towers, including iron towers and cement poles; erect overhead transmission lines, lay out ground wires, tension wires, tighten wires, and install accessories.

• Cable laying: Lay cables, including laying in cable trenches, laying directly buried cables, laying through pipes, etc., and make cable connections and terminal heads.

System commissioning and testing

• Electrical equipment testing: Conduct various tests on installed electrical equipment, such as insulation tests, withstand voltage tests, relay protection tests, etc., to verify the performance and reliability of the equipment.

• System commissioning: Conduct overall commissioning of the power system, including parameter testing of transmission lines, commissioning of automation systems of substations, joint commissioning of power systems, etc., to ensure the normal operation of the power system.

Supporting project construction

• Communication and automation engineering: Install communication equipment, lay communication optical cables, and realize the communication function of the power system; install automation systems to realize remote monitoring and automatic control of power equipment.

• Fire protection and security engineering: install fire protection systems, such as fire alarm systems, fire extinguishing systems, etc.; set up security facilities, such as monitoring systems, access control systems, etc., to ensure the safe operation of power facilities.

Project acceptance

• Intermediate acceptance: During the construction process, intermediate acceptance is carried out for key processes and sub-projects, such as foundation engineering acceptance, tower assembly acceptance, electrical equipment installation acceptance, etc., to timely discover and solve problems.

• Completion acceptance: After the completion of the project, organize relevant units to conduct completion acceptance, including inspection of the project entity, review of materials and trial operation of the system, etc., and deliver it for use after passing the acceptance.