9.2

REQUIREMENTS CONCERNING THE CONSTRUCTION OF VEHICLES

Compliance with the requirements of this Chapter

 
EX/II, EX/III, FL and AT vehicles shall comply with the requirements of this Chapter, according to
the table below.
 
For vehicles other than of EX/II, EX/III, FL and AT:
-        the requirements of 9.2.3.1.1 (Braking equipment in accordance with ECE Regulation No. 13  
 or Directive 71/320/EEC) are applicable to all vehicles first registered (or which entered into 
service if the registration is not mandatory) after 30 June 1997;
 
-        the requirements of 9.2.5 (Speed limitation device in accordance with ECE Regulation No. 
89  or Directive 92/24/EEC) are applicable to all motor vehicles with a maximum mass  exceeding
12 tonnes first  registered  after  31  December  1987  and  all  motor  vehicles  with  a maximum 
mass exceeding  3.5  tonnes  but  not  more  than   12   tonnes   first   registered   after 31 
December 2007.
 
 
 
 

VEHICLES

COMMENTS

TECHNICAL SPECIFICATIONS

EX/II

EX/III

AT

FL

 

9.2.2

ELECTRICAL EQUIPMENT

         

9.2.2.1

General provisions

X

X

X

X

 

9.2.2.2.1

Cables

X

X

X

X

 

9.2.2.2.2

Additional protection

Xa

X

Xb

X

Applicable to vehicles with a maximum mass exceeding 3.5 tonnes first registered (or which entered into service if registration is not mandatory) after 31 March 2018.

Applicable for vehicles first registered (or which entered into service if registration is not mandatory) after 31 March 2018.

9.2.2.3

Fuses and circuit breakers

Xb

X

X

X

Applicable to vehicles first registered (or which entered into service if registration is not

mandatory) after 31 March 2018.

9.2.2.4

Batteries

X

X

X

X

 

9.2.2.5

Lighting

X

X

X

X

 

9.2.2.6

Electrical connections

Xc

X

Xb

X

Applicable to vehicles first registered (or which entered into service if registration is not

mandatory) after 31 March 2018.

Applicable to motor vehicles intended to draw trailers with a maximum mass exceeding 3.5 tonnes and trailers with a maximum mass of exceeding 3.5 tonnes first registered (or which entered into service if registration is not mandatory) after 31 March 2018.

9.2.2.7

Voltage

X

X

     

9.2.2.8

Battery master switch

 

X

 

X

 

9.2.2.9

Permanently energized circuits

         

9.2.2.9.1

       

X

 

9.2.2.9.2

   

X

     

9.2.3

BRAKING EQUIPMENT

         

9.2.3.1

General provisions

X

X

X

X

 
 

Anti-lock braking system

Xe

Xd,e

Xd,e

Xd,e

Applicable to motor vehicles (tractors and rigid vehicles) with a maximum mass exceeding 16

tonnes and motor vehicles authorized to tow trailers (i.e. full-trailers, semi-trailers and centre axle-trailers) with a maximum mass exceeding 10 tonnes. Motor vehicles shall be equipped with a category 1 anti-lock braking system.

Applicable to trailers (i.e. full-trailers, semi-trailers and centre axle-trailers) with a maximum mass exceeding 10 tonnes. Trailers shall be equipped with a category A anti-lock braking system.

Applicable to all motor vehicles and applicable to trailers with a maximum mass exceeding 3.5 tonnes, first registered (or which entered into service if registration is not mandatory) after 31 March 2018.

 

 

 

VEHICLES

COMMENTS

TECHNICAL SPECIFICATIONS

EX/II

EX/III

AT

FL

 
 

Endurance braking system

Xf

Xg

Xg

Xg

Applicable to motor vehicles with a maximum mass exceeding 16 tonnes or authorized to tow

a trailer with a maximum mass exceeding 10 tonnes first registered after 31 March 2018. The endurance braking system shall be of type IIA.

Applicable to motor vehicles with a maximum mass exceeding 16 tonnes or authorized to tow a trailer with a maximum mass exceeding 10 tonnes. The endurance braking system shall be of type IIA.

9.2.4

PREVENTION OF FIRE RISKS

         

9.2.4.3

Fuel tanks

X

X

 

X

 

9.2.4.4

Engine

X

X

 

X

 

9.2.4.5

Exhaust system

X

X

 

X

 

9.2.4.6

Vehicle endurance braking

Xf

X

X

X

Applicable to motor vehicles with a maximum mass exceeding 16 tonnes or authorized to tow

a trailer with a maximum mass exceeding 10 tonnes first registered after 31 March 2018. The endurance braking system shall be of type IIA.

9.2.4.7

Combustion heaters

         

9.2.4.7.1

9.2.4.7.2

9.2.4.7.5

 

Xh

Xh

Xh

Xh

Applicable to motor vehicles equipped after 30 June 1999. Mandatory compliance by

1 January 2010 for vehicles equipped before 1 July 1999. If the date of equipping is not available the date of first registration of the vehicle shall be used instead.

9.2.4.7.3

9.2.4.7.4

       

Xh

Applicable to motor vehicles equipped after 30 June 1999. Mandatory compliance by 1 January 2010 for vehicles equipped before 1 July 1999. If the date of equipping is not available the date of first registration of the vehicle shall be used instead.

9.2.4.7.6

 

X

X

     

9.2.5

SPEED LIMITING DEVICES

Xi

Xi

Xi

Xi

Applicable to motor vehicles with a maximum mass exceeding 12 tonnes first registered after

31 December 1987, and all motor vehicles with a maximum mass exceeding 3.5 tonnes but not more than 12 tonnes registered after 31 December 2007.

9.2.6

COUPLING DEVICES OF MOTOR VEHICLES AND TRAILERS

X

X

Xj

Xj

st

 

MEMUs shall comply with the requirements of this Chapter applicable to EX/III-vehicles.

Electrical equipment

General provisions

The installation shall be so designed, constructed and protected that it cannot provoke any unintended
ignition or short circuit under normal conditions of use of vehicles.
The electrical installation as a whole shall meet the provisions of 9.2.2.2 to 9.2.2.9 in accordance with
the table of 9.2.1.

Wiring

Cables

 
No cable in an electrical circuit shall carry a current in excess of that for which the cable is designed.
Conductors shall be adequately insulated.
The cables shall be suitable for the conditions in the area of the vehicle, such as temperature range and
fluid compatibility conditions as given in ISO 16750-4:2010 and ISO 16750-5:2010, they are intended
to be used.
The cables shall be in conformity with standard ISO 6722-1:2011 + Cor 01:2012 or ISO 6722-2:2013.
Cables shall be securely fastened and positioned to be protected against mechanical and thermal
stresses.

Additional protection

 
Cables located to the rear of the driver's cab and on trailers shall be additionally protected to minimize
any unintended ignition or short-circuit in the event of an impact or deformation.
The additional protection shall be suitable for the conditions during normal use of the vehicle.
The additional protection is complied with if multicore cables in conformity with ISO 14572:2011 are
used or one of the examples in figures 9.2.2.2.2.1 to 9.2.2.2.2.4 below or another configuration that
offers equally effective protection.
 

Fuses and circuit breakers

All circuits shall be protected by fuses or automatic circuit breakers, except for the following:
- From the starter battery to the cold start system;
- From the starter battery to the alternator;
- From the alternator to the fuse or circuit breaker box;
- From the starter battery to the starter motor;
- From the starter battery to the power control housing of the endurance braking system (see
9.2.3.1.2), if this system is electrical or electromagnetic;
- From the starter battery to the electrical lifting mechanism for lifting the bogie axle.
The above unprotected circuits shall be as short as possible.

 

Batteries

Battery terminals shall be electrically insulated or the battery shall be covered by an insulating cover.
Batteries which may develop ignitable gas and are not located under the engine bonnet, shall be fitted
in a vented box.

Lighting

Light sources with a screw cap shall not be used.

Electrical connections between motor vehicles and trailers

Electrical connections shall be designed to prevent:
- Ingress of moisture and dirt; the connected parts shall have a protection degree of at least IP
54 in accordance with IEC 60529;
- Accidental disconnection; connectors shall fulfil the requirements given in clause 5.6 of
ISO 4091:2003.

Requirements of 9.2.2.6.1 are deemed to be met:
- for connectors standardized for specific purposes according to ISO 12098:20041, ISO
7638:20031, EN 15207:20141 or ISO 25981:20081
- where the electrical connections are part of an automatic coupling system (see ECE
Regulation No.552).
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