GB/T 32861-2016Road vehicles—Location of electrical and pneumatic connections between towing vehicles and trailers (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard, through re-drafting method, modifies and adopts ISO 4009:2000 "Commercial vehicles - Location of electrical and pneumatic connections between towing vehicles and trailers". The technical differences between this standard and ISO 4009:2000 are as follows.

- MODIFY the scope of application of the standard, including the central axis trailer train into the standard applicable range;

- MODIFY the standard structure; ADD Chapter 3 Terms and definitions;

SPLIT the Chapter 3 of international standard into Chapter 4, 5, 6, and 7;

- MODIFY the size range presentation method in Figure 1, Figure 2, Figure 3, and Figure 4;

- MODIFY the parameter descriptions of note b in Figure 1, Figure 2, and Figure 3;

- MODIFY the installation location of the electrical and pneumatic connections relative to the vehicle driving direction in Figure 1, Figure 2, and Figure 3 (changed to the right side of vehicle);

- SIMPLIFY the standard expression; DELETE the "ergonomics based" expression from Figure 1 and Figure 2; DELETE the expression of "the position and length of the helical pipeline is depending on the position of the connections" from 3.4.2.1 and 3.4.2.2;

- DELETE the requirements for "quick connector" and "non-standard connector"; USE the pneumatic connector complying with SB/T 13881 standard, in order to improve the interchangeability of the pneumatic connector of towing vehicle and trailer. This standard also makes the following editorial changes.

- MODIFY the name of the standard, in order to in line with the current similar standard name in China; CHANGE the "commercial vehicle" to "road vehicle";

- In the normative references, CHANGE all national standards adopting equivalently or through modification international standards into the corresponding national standards.

1 Scope

This standard specifies the installation position, size, clearance space, and the position of the helical pipeline connection, etc., for the electrical and pneumatic connections between the towing vehicle and trailer (abbreviated as electrical and pneumatic connection).

This standard applies to the drawbar trailer, center-mounted axis trailers and articulated trains that are equipped with pneumatic brake systems, 24 V electrical equipment, AND rear positioned or front lower positioned drawbar coupling.

2 Normative references

The following documents are essential to the application of this document. For the dated documents, only the versions with the dates indicated are applicable to this document; for the undated documents, only the latest version (including all the amendments) are applicable to this Standard.

GB/T 5053.1 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - 7-pole connector type 24 N (Normal) for vehicles with 24 V nominal supply voltage (GB/T 5053.1-2006, ISO 1185:2003, IDT)

GB/T 13881 Breaking connections between motor vehicles and towed vehicles (GB/T 13881-1992, ISO 1728:1980, MOD)

GB/T 20070 Road vehicles - Mechanical coupling between tractors and semi-trailers - Interchangeability (GB/T 20070-2006, ISO 1726:2000, MOD)

GB/T 20716.1 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - Part 1: Connectors for braking systems and running gears of vehicles with 24 V nominal supply (GB/T 20716.1-2006, ISO 7638-1:2003, IDT)

GB/T 20717 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - 15-pole connector for vehicles with 24 V nominal supply voltage (GB/T 20717-2006, ISO 12098:2004, IDT)

GB/T 25088 Road vehicles - Connectors for the electrical connection of towing and towed vehicles - 7-pole connector type 24S (supplementary) for vehicles with 24 V nominal supply voltage (GB/T 25088-2010, ISO 3731:2003, MOD)

3 Terms and definitions

The following terms and definitions apply to this document.

4 Installation location of electrical and pneumatic

l 7-core auxiliary type; m Top of chassis structure. if it cannot reach to the minimum value 220 mm, the installation limit may be beyond of the chassis structure top.

Figure 3 Installation location of electrical and pneumatic connections for the drawbar coupling front below positioned towing vehicle (C-type location area) i Control pipeline (SEE GB/T 13881); j Upper edge of chassis structure (longitudinal/towing vehicle); k The upper edge of the towing seat plane; l As for the semi-trailers without suitable front wall structure, for example, container transport semi-trailer and semi-trailer with front refrigerated structure, the installation position of electric and pneumatic connections can be less than 800 mm. However, for safety reasons, the installation position shall be as high as possible under the preconditions of not contact cargo. m The installation area on the towing vehicle can be rotated up to 90° from the horizontal.

Figure 4 Installation location of electrical and pneumatic connections for the articulated train (D-type location area)

5 Electrical and pneumatic connection size

The type and size of the electrical connection shall comply with the requirements of GB/T 5053.1, GB/T 25088, GB/T 20716.1 and GB/T 20717.

The type and size of the pneumatic connection shall comply with the requirements of GB/T 13881.

6 Clearance space

The size of the clearance around the electrical and pneumatic connections shall be such as to ensure safe operation and comply with the requirements of Figures 5 and 6.

7 Helical pipeline connection