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IRS 70791-7-1ed.
Railway application - Overhead Conductor Rail (OCR) requirements
Translate name
STANDARD published on 1.1.2022
The information about the standard:
Designation standards: IRS 70791-7-1ed.
Publication date standards: 1.1.2022
SKU: NS-1049543
The number of pages: 49
Approximate weight : 147 g (0.32 lbs)
Country: International technical standard
Category: Technical standards IRS
Annotation of standard text IRS 70791-7-1ed. :
These guidelines relate to the activities to be planned and performed to maintain the characteristics of overhead contact lines at the levels expected to guarantee the performance required for the relevant railway lines. This IRS sets out guidelines to ensure the best maintenance of all overhead railway contact rails (OCR - see Concepts, terms and definitions - page 6) fed both in DC and in AC current, under different traffic conditions, speeds, etc. The IRS can be applied in particular to maintain OCR systems operating at the following voltages: -1.5 kV and 3 kV DC -15 kV - 16 2/3 Hz -25 kV - 50 Hz
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