A: Use this format:
International Organization for Standardization. (1994). Railway rolling stock – Axle-mounted lighting devices for passenger coaches (ISO Standard No. 5948:1994).
A: Yes, as of 2025, ISO 5948:1994 remains a current standard. However, check www.iso.org for any announcements of a revision. Many experts expect an update around 2026-2027 to include LED-specific requirements. iso 5948 pdf
Before prototyping, use optical software (e.g., LumenRT or TracePro) to simulate the required luminous intensity distribution per Clause 7. The ISO 5944 PDF includes a polar diagram (Figure 2) that you can overlay onto your simulation results. While ISO 5948 has served the industry well
A: No. ISO 5948 gives schematic diagrams (e.g., test setup for vibration), but not 3D CAD models of the lamp itself. You must design compliant hardware. Until then, the ISO 5948 PDF remains the
You may need it for:
While ISO 5948 has served the industry well for three decades, technology is moving forward. Here is what the next revision of the standard (anticipated around 2028) might include:
Until then, the ISO 5948 PDF remains the definitive reference for anyone designing, testing, or maintaining axle-mounted lamps on passenger trains.