HJ 1113-2020Technical requirements for environmental protection in electric power transmission and distribution construction project (English PDF)

6.1 General requirements

6.1.1 The preliminary design and construction drawing design documents of the power transmission and transformation construction project shall include relevant environmental protection content, and prepare environmental protection Protect chapters, develop special designs for environmental protection, and implement measures, facilities and corresponding funds for the prevention and control of environmental pollution and ecological damage.

6.1.2 Reconstruction and expansion of power transmission and transformation construction projects shall take measures to treat the original environmental pollution and ecological damage related to the project.

6.1.3 When the transmission line enters the environmentally sensitive areas such as the experimental area of the nature reserve, the secondary protection area of drinking water source, etc., the tower shall be used for Environmental protection measures such as avoiding position, reducing the length of entry, and controlling the height of wires, reduce the adverse impact on environmental protection objects.

6.1.4 The substation project should be equipped with an accident oil pool of sufficient capacity and its supporting measures and facilities such as interception, rain prevention and seepage prevention. Once posted If leakage occurs, it should be intercepted and treated in time to ensure that all oil and oil-water mixtures are collected and not discharged.

6.2 Electromagnetic environmental protection

6.2.1 The engineering design shall check and calculate the electromagnetic environment influence factors such as the power frequency electric field, the power frequency magnetic field, and the DC composite electric field.

Take corresponding protective measures to ensure that the electromagnetic environmental impact meets the requirements of national standards.

6.2.2 The design of transmission lines should select line type, erection height, tower type, conductor parameters, phase sequence layout, etc. according to local conditions.

Reduce the influence of electromagnetic environment.

6.2.3 When overhead transmission lines pass electromagnetic environment-sensitive targets, measures such as avoiding or increasing the height of conductors to the ground should be taken to reduce the electromagnetic environment impact.

6.2.4 New urban power lines are located in the downtown area, high-rise building complexes, urban arterial roads, densely populated areas, bustling streets, etc.

Underground cables should be used in the area to reduce the electromagnetic environment impact.

6.2.5 The layout design of substation engineering should consider the influence of incoming and outgoing wires on the surrounding electromagnetic environment.

6.2.6 When transmission lines with voltage levels of 330kV and above cross over or parallel, consider their sensitive targets for electromagnetic environment Comprehensive impact.

6.3 Acoustic environmental protection

6.3.1 The noise control design of substation engineering should firstly control the intensity of noise source and choose low-noise equipment;

Noise reduction measures such as sound insulation, sound absorption, noise reduction, anti-vibration, and vibration reduction should be adopted for radical noise reduction to ensure that the factory boundary emits noise and the surrounding acoustic environment Sensitive targets meet the requirements of GB 12348 and GB 3096 respectively.

6.3.2 The overall layout of the outdoor substation project should comprehensively consider the acoustic environment influence factors, make reasonable plans, and use buildings, terrain, etc. to block Noise propagation reduces the impact on sensitive targets in the acoustic environment.

6.3.3 In the design process of outdoor substation engineering, the layout should be optimized, and the main transformer, converter transformer, high-voltage reactor the main sound source equipment is arranged in the central area of the site or the area away from the sensitive target side of the acoustic environment outside the station.

6.3.4 When the substation project is located in Class 1 or Class 2 acoustic environment functional areas with many surrounding noise-sensitive buildings, the construction unit shall strictly control Control the noise level of main noise sources such as main transformers, converter transformers, and high-voltage reactors, and reserve appropriate margins on the basis of meeting GB 12348.

6.3.5 The substation located in the Class 1 acoustic environment functional area in the urban planning area shall be arranged in the whole house. Located in the urban planning area the substation project of the acoustic environment function area can be arranged indoors and half-indoors with less environmental impact.

6.3.6 The substation project shall take preventive measures to reduce the impact of low-frequency noise to reduce noise disturbance to the residents.

6.4 Ecological environment protection

6.4.1 During the design process of power transmission and transformation construction projects, measures for ecological impact protection and restoration shall be proposed in the order of avoidance, mitigation and restoration.

6.4.3 Temporary land occupation for power transmission and transformation construction projects shall be designed for land function restoration according to local conditions.

6.4.4 For the transmission lines entering the nature reserve, the corresponding protection plan shall be formulated based on the results of the ecological status survey. Taki positioning the habitats of rare and endangered species, protected plants and protected animals should be avoided, and corresponding ecological environmental protection should be designed according to the characteristics of the protected objects.

Protection measures, facilities, etc.

6.5 Water environmental protection

6.5.1 Water-saving measures shall be adopted in the substation project to strengthen water reuse and reduce waste (sewage) water discharge. Rainwater and domestic sewage should Adopt a diversion system.

6.5.2 The domestic sewage generated in the substation engineering station should be considered to be included in the urban sewage pipe network after treatment; it is not included in the urban sewage pipe network for substation projects subject to conditions, domestic sewage treatment devices (septic tanks, buried sewage treatment Installations, reuse pools, evaporation ponds, etc.), the domestic sewage shall be recycled, cleaned or discharged regularly after treatment.

Relevant requirements of national and local water pollutant discharge standards.

6.5.3 For the treatment of circulating cooling water in converter stations, scale and corrosion inhibitors should be selected with little environmental pollution, and the circulating cooling water should be discharged strictly.

The relevant requirements of the corresponding national and local water pollutant discharge standards shall be implemented.

7.1 General requirements

7.1.1 The construction of power transmission and transformation projects should implement the design documents, environmental impact assessment documents and the approval decisions of the approval department Environmental protection requirements. Equipment procurement and construction contracts should specify environmental protection requirements, implementation of environmental protection measures and environmental protection facilities the quality of construction and installation shall meet the requirements of the design and technical agreement and relevant standards.

7.1.2 For transmission lines entering environmentally sensitive areas such as nature reserves and drinking water source protection areas, the construction unit shall strengthen the construction process Management, carry out environmental protection training, clarify protection objects and protection requirements, strictly control the scope of construction impact, and determine suitable construction Seasons and construction methods reduce the adverse impact on environmental protection objects.

7.2 Acoustic environmental protection

7.2.1 During the construction of the substation project, the environmental noise emission at the boundary of the site shall meet the requirements in GB 12523.

7.2.2 In urban areas where noise-sensitive buildings are concentrated, construction operations that produce environmental noise pollution are prohibited at night.

However, emergency repairs, emergency operations, and continuous operations due to production process requirements or special needs are excluded. Night work must be announced to nearby residents.

7.3 Ecological environment protection

7.3.1 Temporary land use during the construction period of power transmission and transformation projects should be combined with temporary use, and wasteland and poor land should be used first.

7.3.2 The cultivated land, garden land, woodland and grassland occupied by power transmission and transformation construction projects shall be stripped of topsoil, classified storage and backfilled.

7.3.3 For the transmission lines entering the nature reserve, the environmental impact assessment documents and the ecological environment protection plan formulated at the design stage shall be implemented.

case. Airships, powered parachutes, unmanned aerial vehicles, etc. should be used during construction. Cableway transportation, human and animal transportation materials, etc. will damage the ecological environment.

Small construction process.

7.3.4 For the transmission lines entering the nature reserve, the protected plants in the project affected area shall be protected in situ, with fences and Plant protection warning signs. When it is unavoidable and requires remote protection, a suitable habitat should be selected for plant transplantation and the survival rate of transplantation should be ensured.

7.3.5 For the transmission lines entering the nature reserve, reasonable construction time should be selected to avoid the important physiological activity period of protecting animals.

When a protected animal is found in the construction area, construction shall be suspended and a protection plan shall be implemented.

7.3.6 Existing roads such as mechanical farming roads and forest roads should be used as much as possible for temporary roads for construction. New roads should be strictly controlled in width.

To reduce the impact of temporary projects on the ecological environment.

7.3.7 When using mechanical equipment with oil at the construction site, measures should be taken to prevent the oil from running, spilling, dripping and leaking, and preventing pollution of the soil and water bodies.

7.3.8 After the completion of the construction, the construction site should be cleaned up in time, and the land function should be restored according to local conditions.

7.4 Water environmental protection

7.4.1 When constructing in or near drinking water source protection areas and other water body protection areas, management should be strengthened and sewage prevention measures should be taken.

Ensure that the water environment is not affected.

7.4.2 During the construction period, it is prohibited to discharge, dump garbage, spoil, and slag into the water body, and it is prohibited to discharge untreated drilling mud and other wastes.

7.4.3 The septic tank of the temporary toilet at the construction site of the substation project shall be treated with anti-seepage treatment.

7.5 Atmospheric environmental protection

7.5.1 During the construction process, the management of the construction site and material transportation should be strengthened, and hard fences should be set up on the construction site to maintain roads.

Clean roads, control material piles and muck piles, and prevent dust pollution.

7.5.2 During the construction process, airtight dust-proof cloth (net) shall be used for temporary piles of soil that are prone to dust and earth and stone during transportation.

Where the construction surface is concentrated and where conditions permit, effective measures such as watering and dust reduction should be adopted to reduce construction operations that are likely to cause air pollution.

7.5.3 During the construction process, the construction unit shall cover the bare ground; if the construction land that cannot be started temporarily exceeds three months, it should be greened, paved or covered.

7.5.4 On-site incineration of solid wastes such as packaging materials and combustible garbage is prohibited on the construction site.

7.5.5 For power transmission and transformation construction projects located in the urban planning area, the prevention and control of construction dust pollution shall also comply with the regulations of HJ/T 393.

7.6 Solid waste disposal

7.6.1 The earth and stone, construction waste, and domestic waste generated during the construction process shall be collected separately and concentratedly, and shall be collected in accordance with relevant national and local regulations.

Regular cleaning and transportation should be carried out, and the site cleaning should be done in time after the construction is completed.

7.6.2 During construction in farmland and economic crop areas, isolation and protection measures should be taken for temporary land occupation during construction. After construction, the concrete Remaining materials and residues are removed in time to avoid affecting the later restoration of land functions.