Commission Decision of 28 July 2006 concerning the technical specification of interoperability relating to the subsystem ‘rolling stock — freight wagons’ of the trans-European conventional rail system (notified under document number C(2006) 3345) (Text with EEA relevance) (2006/861/EC) (repealed)

4.2.7. SYSTEM PROTECTION

4.2.7.1. Emergency Measures

There is no requirement for emergency exits or signposting relating to emergency exits on freight wagons. However, in the event of an accident, there is a requirement for a rescue plan and related information notices.

4.2.7.2. Fire safety

4.2.7.2.1. General

• Design shall limit fire ignition and propagation.

• Toxic fume requirements are not described by this TSI

• The goods carried on freight wagons shall not be taken into account — neither as a primary ignition source nor as a mean of feeding fire propagation. In the case of dangerous goods carried on freight wagons, RID requirements shall be applied in all aspects of fire safety.

• The goods of freight wagons shall be protected against foreseeable sources of ignition on the vehicle.

• The material used on freight wagons shall limit the generation, propagation of fire, and production of smoke in the event of fire on primary ignition source of 7 kW during 3 min

• The design rules shall be applied for any fixed equipment of the vehicle, if it is a potential source of fire ignition, e.g. cooling devices containing fuel.

• A Member State shall not require smoke detectors to be installed on freight wagons.

• Flexible covers shall not be required to meet any fire criteria

• Floors material shall not be required to meet any fire criteria if they are protected according the first sentence of section 4.2.7.2.2.3.

4.2.7.2.2. Functional and technical specification

4.2.7.2.2.1. Definitions

Fire integrity:

The ability of a separating construction element, when exposed to fire on one side, to prevent the passage through it of flames, hot gases and other fire effluents or the occurrence of flames on the unexposed side.

Thermal insulation:

The ability of a separating construction element to prevent excessive transmission of heat.

4.2.7.2.2.2. Normative References

1	EN 1363-1 October 1999	Fire resistance tests Part 1: General requirements
2	EN ISO 4589-2 October 1998	Determination of burning behaviour by oxygen index Part 2: Ambient temperature test
3	ISO 5658-2 1996-08-01	Reaction to fire tests — Spread of flame Part 2 Lateral spread on building products in vertical configuration
4	EN ISO 5659-2 October 1998	Plastic — Smoke generation Part 2: Determination of optical density by a single chamber test
5	EN 50355 November 2002	Railway applications — Railway rolling stock cables having special fire performance — Thin wall and standard wall — Guide to use

4.2.7.2.2.3. Design rules

Spark protection of the load shall be provided separately where the floor does not provide that protection.

The underside of the vehicle floor, in those locations where it is exposed to potential sources of fire and when spark protection is not provided, shall be provided with thermal insulation and fire integrity according the heat curve of EN 1363-1 [1] with a duration of 15 minutes.

4.2.7.2.2.4. Material requirement

In the following table the parameters used to define requirements and their characteristics, are listed. Also stated is whether the numerical value in the tables of requirements represents a maximum or minimum for compliance.

A reported result equal to the requirement is compliant.

Test Method	Parameter	Units	Requirement definition
EN ISO 4589-2 [2]	LOI	% Oxygen	minimum
ISO 5658 [3]	CFE	KWm-2	minimum
EN ISO 5659-2 [4]	Ds max	Dimensionless	maximum

A short explanation of the test methods is given below:

• EN ISO 4589-2 [2] Determination of burning behaviour by oxygen index

  This test specifies methods for determining the minimum concentration of oxygen, in ad-mixture with nitrogen, which will support combustion of small vertical test specimens under specified test conditions. The test results are defined as oxygen index values by volume percentages.

• ISO 5658 –2 [3] Reaction to fire tests — Spread of flame- part 2 Lateral spread on products in vertical position

  This test specifies a method of test for measuring the lateral spread of flame along the surface of a specimen of product orientated in vertical position. It provides data suitable for comparing the performance of essentially flat materials, composites or assemblies, which are used primarily as the exposed surfaces of walls.

• EN-ISO 5659-2 [4] Smoke generation part 2 Determination of optical density by a single-chamber test.

  The specimen of the product is mounted horizontally within a chamber and exposed to thermal radiation on their upper surfaces at selected levels of constant irradiance of 50 kW/m² in the absence of a pilot flame.

Minimum Requirements

Parts or materials having a surface area less than the surface classification below, shall be tested with minimum requirements

Test Method	Parameter	Unit	Requirement
EN ISO 4589-2 [2]	LOI	% Oxygen	≥ 26

Requirements for material used as surface

Method: Conditions Parameter	Parameter	Unit	Requirement
ISO 5658-2 [3] CFE	CFE	kWm-2	≥ 18
EN ISO 5659-2 [4] 50kWm-2	Ds max	Dimensionless	≤ 600

Surface classification

All materials used shall meet the minimum requirements where the surface area of the material/item is less than 0,25m² and

on a ceiling:

• the maximum dimension in any direction on the surface is less than 1m and

• the separation from another surface is greater than the maximum extent of the surface (measured horizontally in any direction on the surface).

on a wall:

• the maximum dimension in a vertical direction is less than 1m and

• the separation from another surface is greater than the maximum extent of the surface (measured vertically)

If a surface is larger than 0,25 m², then requirements for material used as surface applies.

Cable requirements

Cable used for electrical installation on freight wagons shall be in accordance with EN 50355 [5]. For fire safety requirements the hazard level 3 shall be taken in account.

4.2.7.2.2.5. Maintenance of the fire protection measures

The condition of fire integrity and thermal insulation measures (e.g. floor protection, wheel spark protection) shall be checked every overhaul period and at intermediate periods where it is appropriate to the design solution and field experience.

4.2.7.3. Electrical protection

4.2.7.3.1. General

All the metallic parts of a freight wagon that are at risk from excessive contact voltages or being at risk of causing accidents caused by electrical charges of any origin, shall be held at the same voltage as the rail.

4.2.7.3.2. Functional and technical specifications

4.2.7.3.2.1. Freight wagon bonding

The electrical resistance between the metallic parts and the rail shall not exceed 0,15 ohm.

These values shall be measured using 50 A direct current.

When materials that are poor conductors do not enable the above values to be reached, the vehicles themselves shall be fitted with the following protective bonding connections:

• The body shall be connected to the frame at least two different points;

• The frame shall be connected to each bogie at least once.

Each bogie shall be bonded reliably by means of at least one axle box;. If there are no bogies, no bonding connections are needed.

Each bonding connection shall be made of a flexible and non corrodible or corrosion protected material and have a minimum cross section according to the materials used (the reference is 35 mm² for copper).

Particularly restrictive conditions, from the point of view of eliminating risks, shall be taken in the case of special vehicles, for example roofless vehicles occupied by passengers in their own cars, vehicles used to transport dangerous good (listed in the directive 96/49 EC and its valid Annex RID.).

4.2.7.3.2.2. Freight wagon electrical equipment bonding

Freight wagons fitted with electrical equipment shall have sufficient protection against electric shocks. Where there is an electrical installation on the freight wagon, any metallic parts of the electrical equipment liable to be touched by people shall be reliably bonded, if the standard voltage to which they may be subjected is higher than:

• 50 V dc

• 24 Vac

• 24 V between phases when the neutral point is not bonded

• 42 V between phases when the neutral point is bonded.

The cross-section of the bonding cable will depend on the current in the electrical installation, but shall be of a suitable size to ensure reliable operation of the circuit protect devices, in the event of a fault.

Any aerials fitted outside the freight wagons shall be completely protected from the voltage of the catenary or 3rd rail and the system shall form an electrical single unit bonded at one single point. An antenna fitted outside of the freight wagon that does not conform to the previous conditions, shall be isolated.

4.2.7.4. Fixing of tail lamps

4.2.7.4.1. General

All hauled vehicles shall have two tail lamp brackets at each end

4.2.7.4.2. Functional and technical specifications

4.2.7.4.2.1. Characteristics

The tail lamp bracket shall have a fixing slot, as defined in Annex BB fig. BB1.

4.2.7.4.2.2. Position

At the vehicle ends, the tail lamp brackets shall be arranged in such a way that:

• they are placed, wherever possible, between the buffers and the corners of the vehicles;

• they are spaced more than 1 300 mm apart;

• the main centre line of the slot is perpendicular to the main centre line of the wagon;

• the upper side of the tail lamp bracket is less than 1 600 mm above rail level. Where vehicles are fitted with fixed electric tail lamps, the centre line of the tail lamp shall be less than 1 800 mm above rail level;

• the overall gauge of the tail lamp, as laid down in Annex BB fig. BB2, is complied with.

The tail lamp brackets shall be located in such a position that the lamp, when fitted, is not obscured and is easily accessible.

4.2.7.5. Provisions for the hydraulic/pneumatic equipment of freight wagons

4.2.7.5.1. General

Hydraulic and pneumatic equipment shall be so designed by structural strength and using suitable fittings so that bursting will not occur in normal operation.

Hydraulic systems installed on wagons shall be so designed to avoid any visible signs of leaking of hydraulic fluid.

4.2.7.5.2. Functional and technical specifications

Suitable protective measures shall ensure that hydraulic/pneumatic systems are not actuated inadvertently.

For hydraulically or pneumatically operated flaps/slide valves, an indicator shall show that they are properly locked.