Safety fence Safety fence height standard

1. What's the use of a security fence? 2. What kind of safety fence does it belong to? 3. The safety fence cannot have vertical steel pipes. 4. What is the use of the safety fence on the construction site? The purpose of installing a safety fence is to limit the range of activities of staff, prevent irrelevant personnel from straying into the fence, and prevent staff from dangerously approaching live equipment at work. Therefore, in case of power failure, if the safety distance to the live part is less than the following values: 0.4kv is 0. 1m and 10kv is 0.7m, a temporary safety fence should be installed between the workplace and the live part. In fact, when the working range of maintenance, testing, adjustment and calibration exceeds 0.7m, temporary safety fences are usually set up on site. At this time, the role of safety fence is to prevent maintenance personnel from walking in the wrong position or outsiders from entering and approaching live equipment.

What is the difference between outdoor power outage maintenance equipment and indoor power outage maintenance equipment using temporary security fence?

The difference between outdoor and indoor power outage maintenance equipment using temporary safety fence is:

Outdoor: Enclose power outage maintenance equipment with temporary security fence (but leave maintenance passage). Hang an inward-facing sign on the safety fence.

Indoor: 1) Enclose the live running equipment with a temporary safety fence, and hang a sign on the safety fence, facing inward. When overhauling the equipment behind the switchboard (screen), open the mesh safety fence door or iron plate door behind the overhaul screen, and close and lock other live operation panels.

2) Behind the switchboard (screen), there should be an iron gate or a mesh security fence door. When there is no door, temporary safety fences should be installed on the left and right side panels (screens).

What kind of safety fence does it belong to? Safety guardrail belongs to the field of security. Safety fences can be divided into soft fences and hard fences. Guardrail net is divided into ordinary polypropylene high-strength steel wire net and polyester guardrail net. Ordinary fences are calculated by the meter. Generally, it is 1 meter high, and the length is determined by the customer. Higher than one meter can also be customized. Ordinary fences (rope diameter 3.5 mm), polyester fences and fences are generally equipped with brackets.

Importance of safety guardrail

Insulated safety fence is a kind of safety fence made of high-pressure resistant glass fiber reinforced plastic, which plays a role in prompting to ensure the safety of workers in live workplaces such as power plants. There are two kinds of insulation safety fence: sheet insulation safety fence and tubular insulation safety fence.

Installation of safety fence is one of the technical measures to ensure the safety of field workers, which is mainly used for electrical equipment maintenance, electrical test and distribution maintenance of power plants and substations. The safety fence shall be used in conjunction with the warning signs, and it shall be fixed according to the actual situation on site, so as to ensure stability and reliability. It is produced by Shijiazhuang Bao Zhong Electric Hardware Co., Ltd.

The upright steel pipe of the safety fence shall not have defects such as cracks, deformation and corrosion, so as to ensure the stability and safety of the safety fence. The vertical steel pipe of the safety fence shall conform to the relevant national standards, and its material shall be hot-dip galvanized steel pipe, with no defects such as burrs and stains on the surface, and its outer diameter shall meet the design requirements and be installed according to the specified specifications to ensure the stability and safety of the safety fence. In addition, the vertical steel pipes of the safety fence should be inspected regularly to ensure the integrity of its appearance and internal structure, as well as the reliability and safety of the safety fence.

What is the height of the site safety fence? The main sections of the urban area shall be provided with a closed enclosure safety fence with a height of not less than 2.5 meters; A closed enclosure with a safety fence with a height of not less than 1.8m should be set in general sections. The enclosure should be firm, stable, neat and beautiful, and the enclosure wall should publish public service advertisements and publicity slogans for quality, safety and civilized construction. The fence is equipped with a spray dust suppression system.

Extended data

The safe and civilized construction on the construction site is as follows:

1. Gate security fence: The main entrance and exit of the construction site should be provided with gates, and an information-based real-name management system for face recognition and worker information sharing should be installed; The color of the gate is in harmony with the surrounding environment; The size of the gate can be determined according to the actual situation, but it should meet the requirements of vehicle and personnel traffic and fire fighting; The portal frame structure is made of suitable materials to ensure firmness and durability.

2. Site enclosure: Enclosures should be set around the construction site of the project under construction, which should be firm, stable, neat and beautiful, and closed enclosures with a height of not less than 2.5 meters should be set on the main sections of the urban area; A closed enclosure with a height of not less than 1.8m should be set in general sections. Public service advertisements and propaganda slogans of quality, safety and civilized construction should be published on the enclosure wall. The fence is equipped with a spray dust suppression system.

3. Monitoring system: For newly-started housing construction projects with a contract price of 50 million yuan or more, a video monitoring system must be installed at the construction site, and at least 1 high-definition spherical camera with zoom and night vision function should be installed at the entrance and exit of transportation vehicles on the construction site, which is required to cover the entrance and exit of the construction site, water tanks and roads within 30 meters on both sides of the project. Video surveillance system should share information with construction, administrative law enforcement and other departments.

4. Car washing platform and sedimentation tank: Car washing platform (tank), sedimentation tank and automatic car washing facilities are set at the entrance and exit of transport vehicles. The car washing platform (pool) is provided with a drainage ditch to a sedimentation tank. Car wash platform (tank) must have a good drainage system, with drainage ditches around it. Car washing platform (pool) should be equipped with concrete sedimentation tank to ensure smooth drainage and prevent random discharge. Ensure that transport vehicles must be taken out of the mud and cleaned before leaving the site.

5. Construction garbage disposal: The construction garbage and domestic garbage on the construction site should be stored in a closed garbage station. It is forbidden to throw into the air, and clean up in time. Burning garbage and other wastes is strictly prohibited on the construction site. Construction earthwork, muck and construction waste shall be transported by closed transport vehicles, and driven according to the designated transport route and time, and dumped to the disposal site that meets the requirements. It is forbidden to "drip" and dump.

6. Site hardening: the main entrances and exits, main roads, material processing areas, stacking areas, living areas and office areas of the construction site shall be ground hardened according to regulations. The main road of construction should be determined according to the needs of the project, and the exit section should be extended to connect with the municipal roads outside the construction site. The specific practices of the main construction roads shall be determined by the construction unit according to the actual situation.

7. Scaffolding: A dense mesh safety net should be set on the outside of the scaffold for sealing and hanging tightly, and a spray dust suppression system should be set on the outside of the scaffold.

8. Isolation and enclosure of the work area: The building materials, components and materials on the construction site should be neatly stacked according to the general plan and fenced; The material storage yard should be hardened and the drainage should be smooth. Flammable, explosive, toxic and harmful articles should be stored separately.

9. Application of BIM technology: Building information model (BIM) technology must be applied to the construction site of prefabricated buildings.

References:

Wuyi, China —— Thoughts on further strengthening standardized management of safety civilization in construction site.