Overview
ISO 8820-3:2015 is an international standard developed by the International Organization for Standardization (ISO) for fuse-links with tabs (blade type) used in road vehicles. This standard covers three main types of blade fuses: Type C (medium), Type E (high current), and Type F (miniature). It aims to ensure consistent safety, performance, and interchangeability of automotive fuse-links by specifying their rated current, voltage, test procedures, performance requirements, and physical dimensions.
ISO 8820-3:2015 is designed for fuse-links with:
- Rated voltage of 32 V or 58 V
- Rated current of up to 100 A
- Breaking capacity of 1,000 A
This part of the ISO 8820 series is intended to be used together with ISO 8820-1 (definitions and general test requirements) and ISO 8820-2 (user guidelines), ensuring comprehensive coverage for manufacturers and users.
Key Topics
ISO 8820-3:2015 covers a range of important topics for the specification and testing of automotive blade-type fuse-links, including:
- Fuse Types and Applications: Focuses on Type C (medium), Type E (high current), and Type F (miniature) blade fuses.
- Rated Characteristics: Defines rated voltage, current, and breaking capacity for safe and reliable usage.
- Marking and Colour Coding: Details marking requirements and international colour codes for easy identification of fuse types and ratings.
- Physical Dimensions: Establishes standard dimensions and tolerances to ensure interchangeability and fit in vehicle systems.
- Testing and Performance Requirements: Specifies test sequences, including voltage drop, transient current cycling, environmental resistance, operating time, current steps, breaking capacity, terminal strength, and temperature rise.
- Quality and Safety Criteria: Includes clear guidelines for terminal forces, deformation limits, and electrical continuity to support robust safety and operational standards.
Applications
ISO 8820-3:2015 is especially valuable for the automotive industry, supporting the design, production, and maintenance of electrical systems in road vehicles. Typical applications include:
- Automotive Electrical Circuits: Protection of wiring and components in passenger cars, trucks, buses, and utility vehicles.
- Component Manufacturing: Design and production of blade-type fuses for original equipment and aftermarket replacements.
- Vehicle Maintenance and Repair: Standardizing fuse selection and servicing procedures to ensure compatibility and safety.
- System Integration: Ensuring electrical system architects and harness designers use compatible fuse-links for varied current and voltage levels.
Standardization to ISO 8820-3:2015 benefits automotive OEMs, parts suppliers, testing laboratories, and vehicle service providers by improving reliability, interoperability, and safety across the automotive sector.
Related Standards
ISO 8820-3:2015 is part of a broader series of standards addressing fuse-links in road vehicles. Closely relevant standards include:
- ISO 8820-1: Road vehicles - Fuse-links - Part 1: Definitions and general test requirements
- ISO 8820-2: Road vehicles - Fuse-links - Part 2: User guidelines
- ISO 2768-1: General tolerances - Tolerances for linear and angular dimensions without individual indications
- ISO 6722-1: Road vehicles - 60 V and 600 V single-core cables - Dimensions, test methods and requirements for copper conductor cables
For comprehensive compliance and best practices, manufacturers and users should consult the full ISO 8820 series and the above related standards.
Keywords: ISO 8820-3:2015, automotive fuse-links, blade-type fuses, Type C, Type E, Type F, road vehicles, fuse standards, electrical safety, vehicle components, fuse colour coding, automotive electrical systems.