Safety helmets, safety belts (strings), and safety nets are called "three treasures" at high places and play an important role in protecting personal safety.
1. The helmet safety helmet is a personal protective equipment that avoids or reduces the damage to the head caused by falling objects from high places or by flying objects from the side.
The safety helmet is mainly composed of two parts: a cap shell and a cap liner. The materials of the safety cap are mostly plastic, rubber, metal and plant strips. The national standard GB 2811-1988 is stipulated. Before each use, be sure to check the helmet for cracks, bumps, bumps, abrasions, etc.; use a safety helmet, be sure to wear a positive one; the cap must be fastened; do not breathe easily on the cap. Open the hole, it is also not free to touch the helmet.
Safety helmets should not be placed in places with acids, alkalis, high temperatures, or in the sun, and they should not be placed together with hard objects. A helmet that has undergone a strong impact should be scrapped in time and cannot be used.
2. Seat belt (rope)
The protective function of the seat belt is to form the body of the operator on the fixed object through the seat belt so as to prevent the operator from accidentally falling and causing casualties.
The safety belt is mainly composed of three parts: belt, rope and metal fittings. In order to facilitate the operation and prolong the service life, the material used for the seat belt has the characteristics of light weight, abrasion resistance, corrosion resistance, low water absorption and wide temperature range. At present, China's safety belt standards stipulate that the use of cotton, vinylon, silk for rope. Metal fittings have various hooks, rings, clips, etc., generally using ordinary carbon steel and aluminum alloy steel plate punching.
There are many types of seat belts, and they can be classified into three categories, namely the surrounding poles, suspended operations, and climbing operations. According to the purpose of use, there are electricians, telecommunications workers, high-altitude operations, rack workers, railway dispatchers, safety belts, and fire safety belts.
The use of seat belts must be careful and must be based on the use of different operating personnel, choose a product with a certificate.
When using, should master the correct method: should be linked to the level; high hanging low use; before each use should be a visual inspection of the seat belt; when used, the hook, the ring must be hung, the clamp must be fastened; safety After use, care should be taken to keep it safe.
3. Safety Net Safety Net is a net used to prevent people and objects from falling or to avoid or reduce the impact of falling and objects.
The safety net is generally composed of a net body, a side rope, a tether, a test rope, a tendon rope, and the like. Safety nets can be classified into flat nets and vertical nets: flat nets whose installation planes are not perpendicular to the horizontal plane, and stand nets whose installation planes are perpendicular to the horizontal plane.
When choosing and using safety nets, it should be noted that the model selection and installation should be carried out by specially trained people. After the safety net is installed, it must be inspected by safety personnel before it can be used. During use, the following phenomena should be avoided: dragging the net over a rough surface or sharp edges, accumulating articles in the net or under the net, and jumping or heavy objects Into the net, a large number of welding or other Mars falls into the net, there are serious acid-alkali smoke around the net.
The safety nets in use are regularly checked at least once a week. It is advisable to change the nets or carry out inspections after a relatively large impact. During use, you must always clean the web and keep the web clean. It must be ensured that the test rope is always worn on the net. After the net is used, the test rope strength test must be performed every three months. Safety nets should not be dismantled. The safety net must be kept and distributed by special personnel.
Residential Sectional Garage Door
A typical version of an overhead garage door used in the past would have been built as a one-piece panel.The panel was mounted on each side with unequal parallelogram style hinge lifting mechanism. Newer versions of overhead garage doors are now generally built from several panels hinged together that roll along a system of tracks guided by rollers. The door is balanced by either a torsion spring system or a pair of extension springs.A remote controlled motorized mechanism for opening garage doors adds convenience, safety, and security
• Aluminum garage doors are low-cost, light, rust-proof, and feature low-maintenance. They are prone to denting because aluminum is not strong and they are energy-inefficient since aluminum is a highly conductivematerial.
• Fiberglass and vinyl garage doors are composite units, combining a steel core behind a fiberglass or vinyl skin. They have also polyurethane insulated base sections, or other type of foam insulation. These premium doors can match steel garage doors, and be a realistic imitation of wood (namely fiberglass units), but they may be more expensive than steel units.
• Steel doors have become common and are available in a variety of sizes and styles, provide strength and security, are cost-competitive, and may have optional insulating value. Extra strength is available with two or three layers of galvanized steel with a low gauge number (23-24 gauge steel panels).
• Wood garage doors offer aesthetic appeal, but they are high-maintenance and may be expensive. Low-priced wood garage doors may warp and break easily.
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