Document ID: chunk:federal_register_of_legislation:F2007C00493:front:0:p10
Version: federal_register_of_legislation:F2007C00493
Segment Type: other
Provision Reference: 
Character Range: 28087–31154

the case of two 'Axle' 'Dog Trailers' ;

         (b) 0.15 in the case of 'Dog Trailers' with three or more 'Axles' .

12.1.                                The test must be conducted generally in accordance with part 11 with the 'Control Signal' and surface type selected to demonstrate the requirement of clause 12.1 above.
12.2.                                The initial speed requirement of part 11 does not apply.
13.                                      SERVICE BRAKE FADE EFFECTIVENESS TEST
13.1.                                The 'Service Brake System' must, on the next application after not less than 20 successive applications, each not more than 70 seconds after the preceding one and with the total of 20 applications completed within 20 minutes, of the trailer 'Brakes' from an initial speed of 60 km/h to a final speed as calculated by clause 13.2, achieve a calculated 'Established Retardation Coefficient' , when tested in accordance with part 11, at a nominated 'Control Signal' level, of not less than 60 percent of the value obtained at that 'Control Signal' level for the Service Brake Effectiveness Test required by part 11 nor less than 80 percent of the value specified by the lower boundary of Figure 1 at that 'Control Signal' level. The nominated 'Control Signal' level chosen must not be less than that necessary to produce a calculated 'Established Retardation Coefficient' of 0.45 under the Service Brake test conditions described in part 11 without prior fade conditioning stops.
13.2.                                The final speed to which the trailer has to be successively braked as part of the brake fade conditioning procedure must be determined from the equation
V1 2 - V2 2 =  2,700    'Gross trailer Mass'
                         'Total Combination Mass'

         where:

         V1 is the initial speed in km/h; V 2 is the final speed in km/h; Masses and Loads in tonnes

13.3.                                The temperature (100°C) requirement of clause 10.12 does not apply to the test required by clause 13.1.
14.                                      EMERGENCY BRAKE SYSTEM EFFECTIVENESS TEST
14.1.                                The 'Established Retardation Coefficient', as determined by clause 11.5 with must be determined by a test to the requirements of part 11 except where clause 14.2 applies, and except that:
14.1.1.                          The 'Control Signal' source must be left in the "off" position with no 'Control Signal' being provided to the trailer control line; and
14.1.2.                          The energy level in the 'Supply Line' must be reduced to zero (in a 2-line compressed air system this will be the emergency line).
14.2.                                Where the actuation of the 'Emergency Brake System' depends on one or more sources of 'Stored Energy' that are common to the 'Service Brake System', for the purposes of testing for compliance with the requirements of clause 14.1, the trailer energy storage devices must be charged to an energy level no greater than 0.05 'E'