ISO 23273-3-2006 PDF

Full title and description

Fuel cell road vehicles — Safety specifications — Part 3: Protection of persons against electric shock. This part of ISO 23273 specifies essential safety requirements for fuel cell road vehicles (FCV) intended to protect persons and the environment from electric shock associated with on‑board high‑voltage electrical circuits used in FCVs.

Abstract

ISO 23273-3:2006 defines requirements and test criteria for the protection of people inside and outside fuel cell road vehicles from electric shock. It applies to on‑board electric circuits within specified working voltage ranges and excludes FCVs connected to external power, component‑level protection, and activities related to manufacturing, maintenance or repair.

General information

• Status: Withdrawn (withdrawal action recorded in 2012).
• Publication date: November 2006 (first edition published November 2006).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.120 — Electric road vehicles.
• Edition / version: Edition 1 (2006).
• Number of pages: 11 (ISO listing; some national adoptions show page counts 11–14 depending on layout).

Scope

Applies to on‑board electrical circuits of fuel cell road vehicles with working voltages between 25 V a.c. and 1000 V a.c., or between 60 V d.c. and 1500 V d.c. The standard covers protective measures, marking and test methods to prevent electric shock under normal operation and certain fault conditions. It does not cover vehicles when connected to external power supplies, component‑level protection, or procedures for manufacturing, maintenance or repair.

Key topics and requirements

• Voltage classification and the applicable working voltage ranges for on‑board circuits.
• Marking and identification of high‑voltage equipment and voltage class wiring.
• Protective measures against direct and indirect contact (insulation, barriers, enclosures).
• Requirements for protection under single‑fault or first‑failure conditions and complementary/alternative protection strategies.
• Test methods and acceptance criteria for insulation, barriers/enclosures and related protection measures.
• Limits on the scope: excludes external power connection interfaces, component‑only protection, and manufacturing/maintenance/repair activities.

Typical use and users

Used by fuel cell vehicle OEMs, vehicle electrical and safety engineers, systems integrators, test laboratories, conformity assessment bodies, and regulators involved in vehicle safety. It is referenced when defining vehicle high‑voltage safety architectures, lab test programs and labeling/marking practices for FCVs.

Related standards

ISO 23273 is a multi‑part set: Part 1 (vehicle functional safety) and Part 2 (protection against hydrogen hazards) were published in 2006 (both parts have since been superseded or withdrawn in the ISO lifecycle). A consolidated/revised output for hydrogen hazards was published as ISO 23273:2013. For broader electric‑vehicle electric‑shock safety requirements, ISO 6469‑3 (protection of persons against electric shock for electrically propelled road vehicles) is a relevant related standard.

Keywords

fuel cell road vehicles; FCV; electric shock protection; high voltage; on‑board circuits; vehicle safety; ISO 23273-3:2006; voltage classes; marking; insulation; test methods.

FAQ

Q: What is this standard?

A: ISO 23273-3:2006 is the third part of the ISO 23273 series addressing safety specifications for fuel cell road vehicles, specifically the protection of persons against electric shock from on‑board electrical systems.

Q: What does it cover?

A: It covers voltage classes for on‑board circuits, marking/identification of high‑voltage equipment, protective measures (insulation, barriers, enclosures), protection under first‑failure conditions, and the associated test methods and acceptance criteria. It excludes external power connections, component‑only protection, and manufacturing/maintenance/repair procedures.

Q: Who typically uses it?

A: Vehicle manufacturers, systems and safety engineers, test and certification laboratories, and regulators use the standard to design, test and document electrical safety for fuel cell vehicles.

Q: Is it current or superseded?

A: ISO 23273-3:2006 is listed as Withdrawn in the ISO lifecycle (withdrawal action recorded in 2012). Related parts of the ISO 23273 family have been revised or consolidated (for example ISO 23273:2013 for hydrogen hazards); for current, active requirements on electric‑shock protection in modern electrically propelled vehicles, look to newer standards such as ISO 6469‑3 and the current ISO catalogue entries. Users should consult the ISO catalogue or their national standards body for the current normative references that apply to their product or jurisdiction.

Q: Is it part of a series?

A: Yes — ISO 23273 was published as a multi‑part series (Part 1: vehicle functional safety; Part 2: protection against hydrogen hazards; Part 3: protection against electric shock). Some parts have been withdrawn and superseded or consolidated in later ISO publications; consult the ISO catalogue for the latest status of each part.

Q: What are the key keywords?

A: Fuel cell road vehicles, electric shock, high voltage, voltage classes, protection measures, marking, insulation, test methods, ISO 23273-3:2006.