Seat belts are personal protective equipment for high altitude workers to prevent falling injuries. They are made up of belts, ropes and metal fittings. They are collectively called safety belts. It is suitable for working at heights such as surrounding poles, suspensions, and hanging climbing. It is not suitable for fire fighting and hanging objects.
First, species classification and code
1) The use of safety belts is divided into two types: belts, suspension belts and climbing belts.
2) Seat belts are serialized according to species, using Chinese Pinyin letters in front and back to represent different types of work, different methods of use, and different structures. The symbolic meanings are as follows:
D—Electrician, DX—Telecommunications Worker, J—Rackworker, L—Railway Commissioning Worker; T—General Purpose (Oilworker, Shipbuilder, Mechanic, etc.); W—Pole Manoeuvring; W1—Wall Rod-and-belt type, W2—enclosure rope type; X—hanging operation; P—climbing operation; Y—single belt type; F—anti-dropout type, B—dual harness type, S—self Pin type; H - active type, G - fixed type.
Examples of symbol combinations are as follows:
DW1Y——Electrician fence rod with single belt type; TPG - Universal climbing fixed type.
Second, technical requirements
1) Break load indicators for seat belts, ropes and metal fittings.
2) The waist belt must be a whole, with a width of 40-50mm and a length of 1300-1600mm, plus one additional pouch.
3) The width of the protective belt is not less than 80mm and the length is 600-700mm. The belt contacts the waist with a soft material, and the outer layer is wrapped in a webbing or light leather with rounded edges and no corners.
4) The color of the tape is mainly dark green, grass green, orange, dark yellow, followed by white. The color of the thread must match the color of the tape.
5) The diameter of the safety rope is not less than 13mm and the twist is 8.5-9/100 (flower/mm). The diameter of the sling and the surrounding rod rope is not less than 16mm, and the twist is 7.5/100 (flower/mm). The welder's hanging rope must be fully jacketed. The other hanging ropes are only partially covered, and the hanging ropes are not jacketed. The rope heads are to be braided with 3 to 4 twisted and pressed stocks. The stock ropes are not allowed to have elasticity.
6) The metal hook must have a safety device, with the exception of special railway hooks. When the teeth of the self-pinning hook are used on the wire rope, the hardness is Rockwell HRC60. The metal knuckle spring can effectively restore no less than 20,000 times. The mouth of the hook and the knuckle must be flat and must not be deflected.
7) metal parts ring, half-ring, triangle ring, 8-word ring, product ring, three links, welding, edge into a rounded shape. The adjustment ring only allows butt welding. The surface of the metal fittings is smooth and free from pits and cracks. The edges are rounded and the surface must be rust proof. Accessories that do not meet the above requirements must not be installed.
Third, seat belt material
1) Seatbelts and ropes must be made of nylon, vinylon, and silk; electrical fences can be made of cattle with leather; ordinary carbon steel or aluminum alloy steel for metal fittings.
2) Wrapped ropes are made of leather, webbing, vinylon or rubber.
This article is an article of Qingdao Zhongbang Instrument Co., Ltd. If you need to reprint it, be sure to add the source of the description. Reproduce the misappropriation without permission.
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