Document ID: chunk:federal_register_of_legislation:F2025C00113:front:0:p13
Version: federal_register_of_legislation:F2025C00113
Segment Type: other
Provision Reference: 
Character Range: 36778–39930

of not greater than 0.2 'E' for subsequent stops until an 'Established Retardation Coefficient' of not less than 0.45 is achieved.
     3.                                 In the case of a compressed air 'Brake System' the 'Control Signal', applied to the 'Control Line' at the front of the trailer, must reach 65 per cent of the final value in less than 0.4 second.
     4.                                 'Stopping Distance' or 'Stopping Time' may be used to calculate the 'ERC' according to the equations in clause 11.5.
     5.                                 The 'Service Brake System' 'ERC' must be determined according to the following as required:

 where:
 V  is the initial speed in km/h
 S  is the 'Stopping Distance' in metres
 T  is the 'Stopping Time' in seconds
             TR  is the response time measured from the time the 'Control' leaves the 'Initial Brake Control Location' until the energy level at the least favoured actuator reaches 65 per cent of final value
 'Total Combination Mass' is in tonnes
 'Total Trailer Axle Load' is in tonnes with the trailer loaded as specified in clause 10.6
 1.                                 The computed 'Established Retardation Coefficients' determined from clause 11.5 must comply with clause 7.1.7.  Where a test was not conducted at 1.0 'E' the 'ERC' from a test conducted at 0.8 'E' or greater may be increased pro-rata to derive the 'ERC' at 1.0 'E'.
 2.                                 No trailer wheels must remain locked, except below 15 km/h, during completion of the braking tests required by clause 11.
 3.                                 Allowance must be made for the effect of the increased rolling resistance resulting from the combination of vehicles being used to carry out the tests.

 1.                                       DOG TRAILER FRICTION UTILISATION
     1.                                 In the case of 'Dog Trailers' and with any 'Antilock System' disengaged or otherwise made not operational, at least one front 'Axle' must skid before at least one rear 'Axle' at an 'ERC' greater than:
             1.           0.3 in the case of two 'Axle' 'Dog Trailers'; and
             2.           0.15 in the case of 'Dog Trailers' with three or more 'Axles'.
             1.                                 The test must be conducted in accordance with clause 11 with the 'Control Signal' and surface type selected to demonstrate the requirement of clause 12.1 above.
             2.                                 The initial speed requirement of clause 11 does not apply.

 1.                                       SERVICE BRAKE FADE EFFECTIVENESS TEST
     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 V1 km/h to a final speed as calculated by clause 13.2, achieve a calculated 'Established Retardation Coefficient', when tested in accordance with clause 11, at a nominated 'Control Signal' level,