| Key Data Set Information | |
| Reference year | 2024 |
| Name |
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| Use advice for data set | The life cycle analysis of the declared products covers “Product Stage” A1-A3, A4, C2-C4+D modules in accordance with EN 15804 and ITB PCR A (cradle to gate with options). Energy and water consumption, emissions as well as information on generated wastes were inventoried and were included in the calculation. It can be assumed that the total sum of omitted processes does not exceed 5% of all impact categories. In accordance with EN 15804+A2, machines and facilities (capital goods) required for the production as well as transportation of employees were not included in LCA. |
| Technical purpose of product or process | Contact (trolley) wires, type Djp and DjpS covered by EPD are made of Cu-ETP copper and CuAg 0.10 copper alloy, respectively, they consist of a single grooved hard profile wire. Symmetrically made grooves (indentations) at the top of the round contact wire allow it to be attached to hanger cables. Trolleys are the most important component of a catenary wire, and the combination of electrical and mechanical parameters that characterize them limits the capabilities of the catenary and thus the performance of trains. The most common material used for the production of contact wires is copper. This metal is characterized by excellent electrical conductivity and at the same time has (in the hard state) very good strength properties, which, however, are reduced at elevated temperatures of the order of 80°C. Due to this fact, Djp type contact wire cannot be overloaded with electric current, which in turn affects the limitation of the maximum speed of trains to about 160 km/h. The solution to this problem is the addition of a small amount of alloying additives to the copper, which reduce the conductivity of the wire to no or a small extent, while increasing its mechanical properties and raising its operating temperature. For this reason, DjpS type contact wires have a higher current carrying capacity, which translates directly into an increase in train speed, even up to 250 km/h. At present, in Poland, the most modern solution of the structure designed for railway traffic is the YC150-2CS150 catenary with a variation of YC120-2CS150 with a Cu 150 mm2 or 120 mm2 carrying wire and two silver copper contact wires of the DjpS 150 type, approved by the Office of Rail Transport for powering of rail traction vehicles running at speeds up to 200 km/h. |
| General comment on data set | The data selected for LCA originate from ITB-LCI questionnaires completed by TELE-FONIKA S.A. and verified during data audit. No data collected is older than five years and no generic datasets used are older than ten years. The representativeness, completeness, reliability, and consistency is judged as good. The background data for the processes come from the following resources database Ecoinvent v.3.10 (copper, steel, additives, paper, polyethylene, timber, additives, packaging materials). Specific (LCI) data quality analysis was a part of the input data verification. As a result, both upstream- and downstream activities are based on average supply mixes for the specific region depending on the given dataset and KOBiZE data is used (Polish electricity mix and combustion factors for fuels). The allocation rules used for this EPD are based on ITB PCR A and EN 15804+A2. Production of Cu, CuAg contact wires is a line process conducted in TELE-FONIKA Kable S.A.. Allocation was done on product mass basis. All impacts associated with the extraction and processing of raw materials used for the production of Cu, CuAg contact wires are allocated in module A1 of the LCA . Impacts from the global line production were inventoried and 100% were allocated to un Cu, CuAg contact wires production. Water and energy consumption, associated emissions and generated wastes are allocated to module A3 Packaging materials were takien into consideration - wooden cable drums. All data obtained from the LCI survey were taken into consideration, all available data from production have been considered, i.e. all raw materials/elements used as per assembly process, utilized thermal energy, and electric power consumption. Thus, material and energy flows contributing less than 1 % of mass or energy have been considered. It can be assumed that the total sum of neglected processes does not exceed 5 % of energy usage and mass per module A, B, C or D. Machines and facilities required during production are neglected. The production of etiquettes, tape and glue was also not considered. |
| Copyright | Yes |
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| Quantitative reference | |
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| Biogenic carbon content |
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| Time representativeness | |
| Data set valid until | 2029 |
| Technological representativeness | |
| Type of data set | EPD | ||||
| Subtype | average dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
| Data source(s) used for this data set | |||||
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| Compliance Declarations | |||||
| Compliance |
Compliance system name
EN 15804+A2
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
|
Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Data generator | |
| Data set generator / modeller |
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| Data entry by | |
| Time stamp (last saved) | 2024-10-04T09:27:41 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | d4f70915-1530-493d-a7fd-f571d7163159 |
| Date of last revision | 2024-10-04T07:26:40.1158963Z |
| Data set version | 00.03.000 |
| Registration authority |
ITB-EPD Poland
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| Registration number | 614/2024 |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
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Indicators of life cycle