Document ID: chunk:federal_register_of_legislation:F2019L00029:body:0:p20
Version: federal_register_of_legislation:F2019L00029
Segment Type: other
Provision Reference: 
Character Range: 50692–53068

except that for M3 and N3 vehicles the test load shall be 450 ± 20 daN.
6.4.2. Test in configuration of a three-point belt without retractor or with a retractor at the upper belt anchorage
6.4.2.1. A test load of 1,350 daN ± 20 daN shall be applied to a traction device (see Annex 5, Figure 2) attached to the upper belt anchorage and to the opposite lower belt anchorage of the same belt using, if supplied by the manufacturer, a retractor fixed at the upper belt anchorage. In the case of vehicles of categories other than M1 and N1, the test load shall be 675 ± 20 daN, except that for M3 and N3 vehicles the test load shall be 450 ± 20 daN.
6.4.2.2. At the same time a tractive force of 1,350 daN ± 20 daN shall be applied to a traction device (see Annex 5, Figure 1) attached to the lower belt anchorages. In the case of vehicles of categories other than M1 and N1, the test load shall be 675 ± 20 daN, except that for M3 and N3 vehicles the test load shall be 450 ± 20 daN.
6.4.3. Test in configuration of a lap belt
 A test load of 2,225 daN ± 20 daN shall be applied to a traction device (see Annex 5, Figure 1) attached to the two lower belt anchorages. In the case of vehicles of categories other than M1 and N1,the test load shall be 1,110 ± 20 daN, except that for M3 and N3 vehicles the test load shall be 740 ± 20 daN.
6.4.4. Test for belt anchorages located wholly within the seat structure or dispersed between the vehicle structure and the seat structure.
6.4.4.1. The test specified in paragraphs 6.4.1., 6.4.2. and 6.4.3. above shall be performed, as appropriate, at the same time superimposing for each seat and for each group of seats a force as stated below.
6.4.4.2. The loads indicated in paragraphs 6.4.1., 6.4.2. and 6.4.3 above shall be supplemented by a force equal to 20 times the mass of the complete seat. The inertia load shall be applied to the seat or to the relevant parts of the seat corresponding to the physical effect of the mass of the seat in question to the seat anchorages. The determination of the additional applied load or loads and the load distribution shall be made by the manufacturer and agreed by the Technical Service.
 In the case of vehicles in categories M2 and N2, this force must be equal to 10 times the mass of the complete seat; for categories M3 and N3 it shall be equal to 6.6 times the mass of the complete seat.