All our retractable three point safety belts follow the below tech. requirment.
Item No. | Reqm't Title | Reqm't Value |
1 | webbing reaction test | when pull out acceleration of webbing is 0.8g,locking distance 50mm (before and after durability test) |
2 | webbing reaction test | when pull out acceleration of webbing is 2.0g,locking distance50mm (before and after durability test) |
3 | retractor reaction test |
when pull out acceleration of retractor is 0.45g,locking distance50mm; when acceleration0.35g locking distance50mm (before and after durability test) |
4 |
Tilt angle of Sensitive device |
Tilt angle<12° can not lock(before and after durability test) |
5 |
Tilt angle of Sensitive device |
Tilt angle27°must lock (before and after durability test) |
6 | Retractable strength test | 1~7 |
7 | Durability test | after 4500 times pull out and rewind(corrosion and dust test in process),can work as normal and meet all the related requirment |
8 | dust test | dust test for 5hours |
9 | Salt spray test | Salt spray test for 50 hours |
10 | Load test for connector | F14.7KN |
11 | dynamic test |
displacement of dummies(mm) torso 100~300/ hip 80~200 |
12 | webbing width in natural state | under 9800N width46mm |
13 | Tensile strength of webbing | F14700N |
14 |
Illumination processing of webbing |
after test,Tensile strength can not be less than 75% of natural state or 14700N |
15 | Low temperature treatment of webbing | after test,Tensile strength can not be less than 75% of natural state or 14700N |
16 | High temperature treatment of webbing | after test,Tensile strength can not be less than 75% of natural state or 14700N |
17 | Soaking processing of webbing | after test,Tensile strength can not be less than 75% of natural state or 14700N |
18 | Wear-resisting processing of webbing | after test,Tensile strength can not be less than 75% of natural state or 14700N |
19 | Flammability characteristics of webbing | Combustion rate(V)100mm/min |
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