IEC TR 60783-1984 PDF

Full title and description

IEC TR 60783:1984 — Wiring and connectors for electric road vehicles. Technical Report giving recommendations and general rules for external wiring and connectors used to interconnect traction components and sub‑systems in battery electric road vehicles; excludes low‑tension auxiliary wiring and inter‑cell battery connections.

Abstract

This technical report establishes recommended practices for cabling, harnesses and connector arrangements used in electrically propelled road vehicles. It addresses heavy‑current, light‑current and signal harnesses used between traction system components, describes general requirements for mechanical protection, identification and interconnection, and has the status of a Technical Report rather than a normative International Standard.

General information

• Status: Withdrawn (Technical Report).
• Publication date: 30 December 1984.
• Publisher: International Electrotechnical Commission (IEC).
• ICS / categories: 43.120 (Electric road vehicles).
• Edition / version: Edition 1.0 (1984).
• Number of pages: 19.

Scope

Applies to wiring and connectors used externally on battery electric road vehicles for interconnecting traction components and subsystems. The recommendations are intended to improve the safety, reliability and interoperability of harnesses and connectors used for propulsion, control and signalling circuits. The document explicitly excludes low‑tension wiring for auxiliary and signalling accessories (for example lighting, wipers, horn) and connections between individual cells of the traction battery.

Key topics and requirements

• Definitions and scope of wiring and connector types used on electric road vehicles.
• General rules for conductor selection, current‑carrying capacity and insulation appropriate to traction and auxiliary circuits.
• Recommendations for connector contact ratings, mechanical retention, and mating arrangements for vehicle serviceability and safety.
• Harness routing, mechanical protection, strain relief, and guidance on protection against abrasion, heat and vibration.
• Identification, marking and labelling of harnesses and connectors to support maintenance and replacement.
• Recommended test and inspection practices (electrical continuity, insulation resistance, dielectric strength and mechanical endurance) appropriate for vehicle wiring and connectors.
• Notes on exclusions and interfaces with other vehicle systems (auxiliary lighting/signalling and internal battery cell connections).
• Because this document is a Technical Report it provides guidance rather than prescriptive, normative requirements; designers should consult later normative standards where applicable.

Typical use and users

Used as background guidance by automotive engineers, EV system designers, wiring‑harness suppliers, connector manufacturers, test laboratories and standards committees working on electric vehicle powertrain integration and wiring practice. National committees and regulatory bodies historically referenced this TR when developing vehicle wiring guidance for early electric‑vehicle applications.

Related standards

Relevant and subsequent standards that address vehicle charging interfaces, connector dimensions, environmental testing and vehicle safety include the IEC 61851 series (electric vehicle conductive charging systems), the IEC 62196 series (plugs, socket‑outlets and vehicle connectors for conductive charging) and modern vehicle safety standards such as the ISO 6469 series (safety specifications for electrically propelled road vehicles). These later, normative standards and series have become the primary references for EV charging, connector interoperability and RESS/vehicle safety.

Keywords

wiring; cable harness; connectors; electric road vehicles; traction wiring; heavy current; signal harness; connector ratings; mechanical protection; TC69; technical report.

FAQ

Q: What is this standard?

A: IEC TR 60783:1984 is a Technical Report published by the IEC that provided recommendations for wiring and connectors used on electric road vehicles, particularly for traction‑related harnesses and interconnections.

Q: What does it cover?

A: It offers general rules and guidance for external wiring, cable harnesses and connectors used to interconnect traction components and subsystems in battery electric road vehicles, and notes items explicitly excluded (low‑tension auxiliary wiring and inter‑cell battery connections).

Q: Who typically uses it?

A: Automotive and EV engineers, harness and connector manufacturers, test labs, and standards bodies used the TR as background guidance when addressing wiring practice for electrically propelled road vehicles.

Q: Is it current or superseded?

A: IEC TR 60783:1984 has been withdrawn (withdrawal recorded 15 September 2016). Much of its subject matter has since been addressed in later, normative standards and technical work under IEC TC‑69 and related committees (for example the IEC 61851 and IEC 62196 series and ISO 6469 for vehicle safety), which are the current references for EV wiring, connectors and charging interfaces. Users should consult those current standards for prescriptive requirements.

Q: Is it part of a series?

A: IEC TR 60783:1984 is a standalone Technical Report (not a multi‑part normative series). Subsequent work on electrically propelled road vehicles and charging/connectors has been developed as multi‑part standards series (for example IEC 61851 and IEC 62196) under IEC technical committees.

Q: What are the key keywords?

A: Wiring, connectors, harness, electric road vehicles, traction, insulation, connector rating, mechanical protection, TC69, technical report.