Overview
ISO 10355:2004 - Mopeds: Positioning of lighting and light-signalling devices specifies where lighting and light‑signalling devices must be positioned on a moped (as defined in ISO 3833). The standard covers location, orientation and symmetry requirements for lamps and reflex‑reflecting devices but does not cover installation methods or electrical/electronic requirements. It is a positional standard intended to ensure visibility, consistency and safety of moped lighting.
Key topics and technical requirements
- Scope & references: Applies to lighting and light‑signalling devices fitted to mopeds; normative references include ISO 3833, ISO 6726 and ISO 7227.
- General rules
- Lamp reference axis must be parallel to the vehicle bearing plane; tolerance ±3°.
- Positioning checks are made on an unladen vehicle on a flat surface with handlebars straight.
- Paired lamps must be mounted symmetrically around the median longitudinal plane unless manufacturer instructions state otherwise.
- Lamps may be grouped or combined provided each function meets its specific positional requirements.
- Specific device requirements (selected values from the standard)
- Driving/main‑beam and passing/dipped‑beam headlamp pairs: reference centres must be symmetrical; maximum separation between any two headlamps is 200 mm.
- Passing/dipped‑beam height: 500–1 200 mm above ground.
- Front position lamp height: 350–1 200 mm above ground.
- Front reflex‑reflector height: 400–1 200 mm; must face forward.
- Side reflex‑reflector height: 300–1 000 mm and oriented perpendicular to median plane.
- Rear reflex‑reflector height: 250–900 mm; single rear reflector must be on the median plane.
- Direction indicators: front indicator pair separation ≥ 240 mm, rear pair separation ≥ 160 mm; indicator height 350–1 200 mm. Tabled minimum separation distances relate to indicator intensity (e.g., 90 cd → 75 mm).
- Stop and rear position lamps: height 250–1 500 mm; must face rearward.
- Orientation: Many front lamps may move with steering; reflex devices and position lamps have directionality requirements (face forward or rearward).
Applications and users
ISO 10355:2004 is used by:
- Moped and small‑vehicle manufacturers and designers for lamp layout and body design.
- Type‑approval, homologation and regulatory bodies assessing compliance of lighting positioning.
- Test laboratories verifying positional conformance (height, symmetry, separation).
- Standards committees and engineering teams aligning product design with international vehicle lighting rules.
Practical benefits include improved road visibility, harmonized design for safety, and clearer guidance for type approval of mopeds.
Related standards
- ISO 3833 - Road vehicles: terms and definitions (moped definition)
- ISO 6726 - Mopeds and motorcycles: masses vocabulary
- ISO 7227 - Road vehicles: lighting and light‑signalling vocabulary
Keywords: ISO 10355:2004, mopeds lighting positioning, moped headlamp position, light‑signalling devices, direction indicators, reflex reflectors, vehicle lighting standard.
