Kontaktledning/Støpte ståldeler


These specifications apply to the production and delivery of cast steel parts for overhead contact line systems to Bane NOR SF (hereinafter referred to as BN in this document) in connection with the conclusion of one or more framework agreement(s). Scope of delivery is defined in this documents 🔗 Appendix.

Requirements given in this document must be followed when purchasing «cast steel parts» for overhead contact line systems belonging to BN.


In this chapter the requirements to the relevant components are defined in three main sections:

  • General requirements
  • Technical requirements
  • Requirements to documentation/tests

If some of general and technical requirements or requirements for documentation and testing increase the cost compared with the tenders evaluation/assessment of the requirements utility, we request special response on this in accordance with the tender documentation.

2.1 General requirements

2.1.1 Drawings and casting molds

BN owns the rights to all attached drawings. For each of parts that are to be cast, the supplier shall in its tender give a price for a transfer of the molds to BN, or a rental agreement for the molds. In the case of a rental agreement, BN shall have 1st priority when using the molds. The supplier shall, if BN so wishes, store molds in a suitable manner without damageing them.

2.1.2 Corrosion

  1. The materials selected shall be resistant to corrosion.
  2. Steel parts shall be protected by hot-dip galvanizing.
  3. The supplier shall assess whether corrosion protection beyond this is necessary.
  4. If additional protection against corrosion is required to achieve the specified service life, this shall be stated and priced in the offer.

2.1.3 Metal coating / surface finish

  1. According to the drawing, steel components shall be hot-dip galvanized in accordance with [NS-EN ISO 1461].
  2. The zinc to be added to the bath shall have a purity of at least 98% zinc.

2.1.4 Protection of product assembly workers

There shall be no sharp edges, zinc drips etc. that can cause injury to product assembly workers.

2.1.5 Labelling

Each of components shall be labelled with the date of manufacture, type of material, the manufacturer's company name and catalog number, easily visible and of such a quality that the labelling does not disappear or weaken the construction. Equal components with different dimensions must be clearly labeled. The supplier can alternatively come up with proposals for labelling components.

2.1.6 Tolerances

Permissible deviation, the tolerance, for each individual component shall be within the limit stated in the component's associated drawings. If deviations / tolerances are not stated on the drawing, requirements in associated national or international standards shall be used.

2.1.7 Special tools

It shall not be necessary to use special tools for assembly / connection. For components that may need special tools for assembly / connection, this must be stated in the tender delivery. Special tools shall be manufactured / provided by the supplier and shall be included in the offer. If necessary, the supplier shall create procedures for the use of special tools.

2.1.8 Storage and transport

The supplier shall pack the components in such a way that no damage to the components shall occur during handling and transportation.

2.1.9 Recycling and destruction of components

  1. The supplier shall state in the tender whether there are environmentally hazardous materials / substances in the products, and if so, how these are to be handled both during use and upon disposal.
  2. The supplier shall check the raw material / product against radioactive particles and radiation. The amount of radioactivity and cadmium must be within the limits permitted by national and international standards and legislation.

2.2 Technical requirements

2.2.1 Materials

  1. Materials of steel and aluminum shall meet the requirements specified in the drawings. Each of the cast materials shall be documented with a material certificate. type 3.1.B in accordance with [NS-EN 10204] together with a copy of the certificate for the starting material. The certificate must contain information about:
    • Manufacturer
    • Chemical composition
    • Results of tests
    • Heat treatment
  2. For steel, the following additional requirements shall be met:
    • The carbon equivalent (CEV) shall meet the requirement in table 4 in [EN 10025]
    • The steel shall be fully sealed
    • The material shall be suitable for hot-dip galvanizing.

2.2.2 Construction

The components shall be built in accordance with the enclosed drawings.

For more information, refer to the attached drawings.

2.3 Documentation / Tests

2.3.1 Testes

  1. The supplier shall prepare proposals for test procedures that are delivered together with the tender. Each procedure shall describe the test method, execution, acceptance criteria and scope and shall provide reference to recognized national or international standards.
  2. Destructive tests shall be performed for certain components. Proposals for destructive tests must be submitted by tender.
  3. «Control of vital measures» and «material tests» shall be performed on a random basis.
  4. Tests shall be performed in accordance with Norwegian or international standards where they exists. Standards used must be stated when submitting a tender. The tests should include at least the following areas:
    • Non-destructive testing of components
    • Destructive testing of components
    • Dimension control
    • Inspection of coatings shall be carried out in accordance with [NS- EN ISO 1461]
  5. The test procedures shall be divided into three levels:
    • Type test (to be conducted before delivery starts)
    • Random test
    • Routine test

2.3.2 Additional requirements for delivery

Technical specifications for overhead contact line material are divided according to the material of the components. Some components in connection with a technical specification shall nevertheless be delivered as a complete composite component consisting of several sub-components with different materials. It appears from the description of F.nr. and drawing no. in point for 🔗 scope of delivery when such composite components are to be delivered.

If a sub-component consisting of material other than the relevant technical specification is mainly to be delivered, as part of a composite component, this sub-component shall be delivered in accordance with requirements given in the detailed drawing for the sub-component where such a detailed drawing exists. Any detailed drawing for a component of material other than the relevant technical specification shall be enclosed in the technical specification for the relevant material.

Some components shall be delivered both as part of a composite component and as a separate sub-component. What is to be delivered is stated in items in the list for 🔗 scope of delivery.

2.3.3 Documents The following documents shall be kept with the supplier and delivered at BN's request:

  1. Random sample-based test protocols
  2. Traceability protocol
  3. Material certificates The following documents shall be included in the offer:

  1. Copy of the supplier's quality manual and quality plan
  2. Copy of examples of material certificate(s)
  3. Copy of examples of type test certificate(s)
  4. Copy of procedures for routine test / final control protocol
  5. Suggested maintenance instructions if applicable. The description shall be in Norwegian. English can be accepted in special cases
  6. Copy of checklist, 🔗 Checklist in completed condition
  7. Copy of proposal for final inspection protocol / form
  8. Copy of other documents required in this specification

The template for the final inspection protocol must be prepared by the supplier and sent to BN for approval prior to production start.

If there are other relevant tests, standards or instructions etc. that are to be used, and which are not mentioned in the specification, this shall be pointed out by the supplier. The following documents shall accompany each delivery:

  • Routine test / final control protocol (final control form)


Standard Specifications
NS- EN ISO 1461 Varmforsinkede belegg på produkter av jern og stål, spesifikasjoner og prøvingsmetoder(ISO 1461:1999)
EN 10025 Varmvalsede produkter av konstruksjonsstål
NS- EN 10204 Metalliske produkter - typer av inspeksjonsdokumenter
NS-EN ISO 12006-3 Building construction - Organization of information about construction works - Part 3: Framework for object-oriented
NS-EN ISO 16739 Industry Foundation Classes (IFC) for data sharing in the construction and facility management industries
NS-EN ISO 29481-2 Building information models - Information delivery manual - Part 2: Interaction framework

Reference(s) is made in addition to the standards mentioned in the attached drawings.


4.1 Remarks to the scope of delivery

The drawings listed in the scope of delivery include parts that are mandatory in BN's modern overhead contact line systems as well as parts in older overhead contact line systems that are ordered on demand. Some of these parts may also be supplier dependent and as such deviate from the attached drawing(s). Hence the scope of delivery is marked as follows:

M = Mandatory
R = On requirement
* = Supplier dependent

This marking can occur either solely or in combination.

One or more of the drawings referred to here, in the technical specification and scope of delivery for «Processed steel and aluminum parts» are supplier dependent, other suppliers can offer their own products that have similar function, performance, construction and service life. Such products shall be approved specifically by BN. In connection with the introduction of new components, where there are no satisfactory production drawings, the supplier shall send a technical documentation of the component for approval. Documentation for approval shall include drawing in file format (pdf.files) and/or open data models (IFC.files), technical data, test reports, etc. Open data models shall be in accordance with the standards [NS-EN ISO 12006-3], [NS-EN ISO 16739] and [NS-EN ISO 29481-2]. Some components shall undergo a test period before final approval is given. Test procedures and requirements for results are determined by BN.

4.2 Scope of delivery

1. R EH-701373-000 Rørmuffe
2. R EH-701377-000 Kontakttrådholder med øye
3. R EH-701471-000 Rørklemme for trykkstag (for tunnel og broutligger)
4. R EH-701605-000 Bærelineholder for tunnelutligger, system 35
5. R EH-704918-000 Kileklemme for 50 mm² Bli og 100 mm² Kt (80 mm² Kt)
6. R EH-705305-000 Bærelineholder, system 35
7. R EH-707000-000 Avspenningslodd av støpejern Ø 350 mm
8. R EH-707001-000 Avspenningslodd av støpejern Ø 227 mm
9. R EH-707002-000 Loddavspenningshjul
10. R EH-707035-000 Rørmuffe for lett direksjonsstag, åkutligger, system 35
11. R EH-707036-000 Holder for utliggerrør, system 35
12. R EH-707037-000 Rørmuffe for 1 ¼″ rør, åkutligger
13. R EH-707039-000 Rørkobling, åkutligger, system 35
14. R EH-707050-000 Rørmuffe for ¾″ rør, tunnelutligger, system 35
15. R EH-707069-000 Holder for lett direksjonsstag, system 35
16. M EH-707166-000 Klo som hakebolt, system 20
17. M EH-707246-000 Trinse for line, komplett, system 20
18. M EH-707247-000 Kjedekobling for strekkbolt med gaffel, system 20
19. M EH-707249-000 Lodd for avspenning
20. M EH-707252-000 Kile for 50 mm² line, system 20
21. M EH-707282-000 Kjedeforbinder for isolator i avspenning, system 20
22. M EH-707285-000 Kileklemme for line og tråd
23. M EH-707334-000 Kileklemmer for line og tråd
24. M EH-707347-000 Ledd for utliggerkonsoll, system 20
25. R EH-707442-000 Bærelineholder for normalutligger, tegning EH-707099-000, sys. 35


  1. The supplier shall develop a checklist for compliance of the requirements described in this technical specification.
  2. This checklist shall contain a declaration of compliance or non-compliance of each requirement.
  3. If the requirement is non-compliant, it shall be described why the requirement is non-compliant and an explanation of what the supplier recommend for a sufficient requirement to comply the component's function.