Outdoor transformer fence standard

Legal analysis: The standard height of transformer fence is 18, and the length is 2 or 25.

the transformer guardrail is mainly composed of PVC, columns, cross bars, vertical rods and bases. General parameters and dimensions:

1. Cross bar: fence bar 36x56 (mm); Upright pole: fence bar 25x7 (mm);

2. Height of vertical pole: 8, 1, 12, 15 and 18 (mm);

3. Columns: 8x6, 85x85, 1x1, 12x12 (mm);

4. standard span: 2-3(mm).

legal basis: scope of technical standard for substation safety fence Q/GDW11-144―212-171

1 this standard specifies the type and requirements, operation and use, management and maintenance and other requirements of substation safety fence.

this standard is applicable to the isolation safety fence for the production (high-voltage equipment) area and living area, operation equipment and maintenance equipment, substation reconstruction and expansion project of 35 kV and above substation under the jurisdiction of Zhejiang Electric Power Company. The safety fence of power plant booster station and user substation can be implemented with reference.

2 normative reference documents The following documents are essential for the application of this document. For dated reference documents, only dated version is applicable to this document. For undated reference documents, the latest version (including all amendments) is applicable to this document.

GB2686-211 Code of Practice for Electric Power Safety: Electrical Parts of Factories and Substations Q/GDW 434.1-21 Safety Facilities Standard of State Grid Corporation Part 1; Substation

State Grid Safety Supervision [29] No.664 State Grid Corporation Power Safety Work Regulations (Substation Part)

3 Terms and definitions

The following terms and definitions apply to this document.

3.1 fixed protective fence

the fixed protective fence is suitable for places where there is a danger of falling, such as around high-voltage equipment installed on the ground and platforms, pedestrian walkways, lifts, large and small potholes, stairs, etc.

3.2 area isolation barrier

the area × area isolation barrier is suitable for the isolation between the equipment area and the living area of the substation, the isolation between the equipment area, the isolation between the reconstruction (expansion) construction site and the operation area, and can also be installed around crowded places. Regional isolation barriers are divided into fully enclosed safety barriers, isolation net walls and isolation barriers.

3.3 temporary fencing (fence)

temporary fencing (fence) is suitable for places where there is a possibility of falling objects from high places in substations, the isolation between the work site and the operating equipment, the standardization of the activity scope of workers in the work site, the safe passage on the maintenance site, the temporary lifting site on the site, the high-voltage test site, the safe passage or the place where permanent railings are produced along the edge of the platform due to maintenance, the accident site protection, and the surrounding of temporarily opened holes.