ISO 8818-1988 PDF

Full title and description

Leisure accommodation vehicles — Caravans — 12 V direct current extra low voltage electrical installations. Specifies safety and functional requirements for 12 V d.c. extra-low-voltage electrical installations in caravans, and includes an annex for determining minimum cable cross-sectional areas. Does not apply to commercial trailers, motor caravans, or road lighting/signalling lamp installations.

Abstract

This International Standard (ISO 8818:1988) establishes safety and functional requirements for 12 V electrical systems installed in leisure accommodation vehicles (caravans). It addresses power sources (including auxiliary batteries and connections to towing-vehicle systems), wiring and cable sizing, overcurrent protection, appliance installation and protection of battery compartments; an informative annex gives methods for calculating minimum cable cross-sections.

General information

• Status: Withdrawn (international standard no longer in force).
• Publication date: December 1988 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 43.100 — Passenger cars. Caravans and light trailers.
• Edition / version: Edition 1 (1988).
• Number of pages: 8 pages.

Scope

Applies to 12 V d.c. extra-low-voltage electrical installations specifically fitted in caravans used as leisure accommodation. The standard defines requirements for power supplies (vehicle battery, auxiliary caravan battery, external low-voltage sources), fixed wiring and cable sizing, overcurrent protection (types and installation of protective devices), installation of appliances and protection/ventilation of battery compartments. Excluded are commercial trailers, motor caravans and requirements for ELV road lighting and signalling lamps and their installations.

Key topics and requirements

• Definitions and normative references for caravan electrical installations.
• Requirements for power supplies, auxiliary batteries and permissible sources of 12 V supply.
• Wiring practices including connection to towing vehicle, fixed wiring rules and cable size determination.
• Overcurrent protection: device types, installation rules and prohibited locations for protective devices.
• Installation rules for appliances and guidance on supply lead capacities.
• Battery compartment construction and ventilation to protect against acid-gas corrosion.
• Annex with method to calculate minimum conductor cross-sectional area for cable selection.

Typical use and users

Used by caravan manufacturers, vehicle electrical designers, installers and service organizations, type-approval bodies and conformity assessors when designing, installing or inspecting 12 V electrical systems in towable leisure accommodation units. Also referenced by standards bodies and technical committees working on caravan and trailer safety requirements.

Related standards

Related work includes other ISO standards and national/regional rules on caravan installations and low-voltage electrical safety (referenced IEC/ISO electrotechnical publications and local regulations for caravan parks and installations). Users typically check current ISO and IEC publications and any national adoption or replacements for up-to-date requirements since ISO 8818:1988 has been withdrawn.

Keywords

caravan, leisure accommodation vehicle, 12 V, direct current, extra-low voltage, electrical installations, wiring, cable sizing, overcurrent protection, battery compartment, ISO 8818

FAQ

Q: What is this standard?

A: ISO 8818:1988 is an International Standard titled "Leisure accommodation vehicles — Caravans — 12 V direct current extra low voltage electrical installations" that set safety and functional requirements for 12 V d.c. electrical systems in caravans.

Q: What does it cover?

A: It covers power sources and batteries, wiring and fixed installations, cable sizing (with an annexed calculation method), overcurrent protection (fuses and devices), appliance installation and battery compartment protection/ventilation. It excludes motor caravans, commercial trailers and road lighting/signalling lamp installations.

Q: Who typically uses it?

A: Caravan manufacturers, electrical system designers and installers, service and inspection bodies, and standards or regulatory authorities concerned with caravan electrical safety.

Q: Is it current or superseded?

A: ISO 8818:1988 has been withdrawn and is not a current active ISO standard; users should consult ISO and national standards bodies for any replacement standards or more recent normative requirements (EVS records indicate withdrawal from national catalogs and ISO lifecycle shows withdrawal).

Q: Is it part of a series?

A: ISO 8818 was prepared by ISO/TC 177 (Caravans) as part of a series of standards for leisure accommodation vehicles; related ISO/TC 177 publications address vocabulary and other caravan-specific requirements.

Q: What are the key keywords?

A: Caravan, leisure accommodation vehicle, 12 V, direct current, extra-low-voltage, wiring, cable sizing, overcurrent protection, battery compartment, electrical installations, ISO 8818.