2022 registered safety engineer prediction test site: safety distance and protection of power lines, the finishing point prediction of the safety line, long press and like + forward + evaluation continue to be updated, Wendang version click on my avatar and send private message me: 2022
Overhead lines are currently a relatively common power transmission method. When there are overhead lines on the construction site and around, the safe distance between construction machinery, external scaffolding and personnel and the power lines should be ensured. Sometimes, in order to ensure construction safety, protective measures such as setting up protective fences, fences, and hanging warning signs are taken.
(I) Safety distance of external power lines
In the construction site, the safety distance problem mainly refers to the minimum safe operating distance between the outer edge of the under-construction project (including scaffolding tools) and the edge of the external overhead line and the minimum safe vertical distance when the motor vehicle lane at the construction site intersects with the external overhead line, etc.
1. Minimum safe operating distance between the outer edge of the under-construction project (including scaffolding tools) and the edge of the overhead line of the external power supply.
(II) Protection of external power lines
When the minimum safe distance cannot be guaranteed, in order to ensure construction safety, protective measures such as setting up protective fences, fences, and hanging warning signs must be taken when setting up the above protective barriers.
(1) The installation of protective barriers and fences can be used as protective vertical poles and horizontal poles; wooden boards, bamboo rows or dry fences, safety nets, etc. can be used as longitudinal protective screens. (3) Power outage should be carried out during erection and demolition.
(4) If the barrier cannot be set, measures such as power outage, migration of external power lines or changing the project location should be taken, otherwise construction shall not be carried out.
