How to use ladders correctly for electrical work


Industry I 2020-09-15, Number of views:15

   

When using the elevating step ladder, the distance between the foot of the ladder and the wall must not be less than 1/4 of the length of the ladder to prevent the ladder from falling down and hurting people.  When using a herringbone ladder, the opening work should not be greater than 1/2 of the length of the ladder, and zippers or drawstrings should be added on both sides to limit the opening.  When using ladders on smooth and hard ground for climbing operations, rubber sleeves or pads should be added to the feet of the ladder; when using ladders on mud ground, iron tips should be added to the feet of the ladder.


Professionals who have the qualification of scaffolding (working at high altitude) are required before erection.  Foundation treatment should be carried out before construction , find a suitable working surface, place the adjustable base on a suitable working surface, insert the vertical pole after adjusting the level, install the horizontal brace, pay attention to placing the cross brace in the pin library with low vertical pole  , Put the plug of the cross bar into the pin library of the vertical pole, adjust the balance and tighten the insert,


At this time, measure the diagonal size of the frame, the horizontality of the crossbar and the verticality of the vertical rod. If the deviation exceeds 5mm, tap the loose insert to adjust it to a suitable size before tightening the insert.  Safety ladder scaffolding is mainly composed of vertical poles, cross poles, diagonal poles, cross braces, top poles, bases, adjustable bases, pedals, stairs, external brackets attached to walls and other supporting components.


The installation and use methods of each component are as follows: Safe climbing ladder hoisting test Safe climbing ladder hoisting test 1. Adjustable base is inserted in  The bottom of the pole is used as the level of the support system, the height is adjusted vertically and the pressure-bearing surface is enlarged, and the force is transmitted to the foundation. It is welded by the screw and the bottom plate. The adjustable base cannot be adjusted too high to avoid falling out of the pole and causing safety  accident.  Before erection, a qualified professional with scaffolding (working at high altitude) must be installed.


Before construction, foundation treatment should be carried out to find a suitable working surface and place the adjustable base on a suitable working surface  , After adjusting the level, insert the vertical pole, install the first layer of horizontal brace, pay attention to place the cross brace in the pin library with the low vertical pole, put the plug of the cross bar into the pin library of the vertical pole, and tighten the insert after adjusting the balance.  At this time, the diagonal size of the frame, as well as the horizontality of the crossbar and the verticality of the vertical rod should be measured. If the deviation exceeds 5mm, tap the loose insert to adjust it to a suitable size and then tighten the insert.