Overview
IEC 61076-7:2000 specifies uniform requirements for cable outlet accessories (rear accessories, backshells) for connectors used in d.c., low‑frequency analogue and digital high‑speed data applications for frequencies below 3 MHz. The standard defines type test requirements, quality assessment procedures and rules for preparing detailed specifications for accessories of assessed quality, including qualification approval and capability approval under the IECQ system.
Key topics and technical requirements
- Scope and applicability: Applies to cable outlet accessories for connectors operating below 3 MHz; detailed specifications take precedence where conflicts occur.
- Quality assessment: Procedures for manufacturer approval, qualification testing, capability approval and maintenance of capability are defined, including test schedules and required records.
- Type testing and grouping: Defines grouping of tests, preconditioning, specimen preparation and general test schedules consistent with IEC testing practice.
- Climatic classification: Accessories are classified into climatic categories (temperature ranges and damp‑heat severities) following IEC 60068 rules to guide environmental performance expectations.
- Materials and finishes: Materials must comply with the detail specification; preferred finishes (e.g., anodize, electroless nickel, cadmium plating) and corrosion considerations are specified.
- Styles and identification: Defines accessory styles (sealed/unsealed, shielded/unshielded, conduit adapters, shrinkboot types) and the IEC type designation and marking rules for traceability.
- Packaging and storage: Packaging (transparent inert bags) and storage inspection intervals (every five years) are prescribed.
- Normative references: Cross‑references established IEC and ISO documents for terminology, environmental testing and test methods (e.g., IEC 60068, IEC 60512).
Practical applications and users
- Who uses it: Connector and accessory manufacturers, OEMs, procurement and quality managers, test laboratories and conformity assessment bodies (IECQ).
- Why it matters: Ensures consistent performance, interchangeability and verified manufacturing capability for cable outlet accessories used in low‑frequency data and power applications. It supports supplier qualification, procurement specifications and product acceptance testing.
- Typical use cases: Specifying assessed‑quality backshells and cable outlets for industrial automation, instrumentation and any equipment using low‑frequency analogue/digital signals where documented qualification and manufacturing capability are required.
Related standards
Relevant normative documents cited in IEC 61076-7:2000 include:
Keywords: IEC 61076-7, cable outlet accessories, backshell, connectors, assessed quality, qualification approval, capability approval, low-frequency connectors, IECQ, environmental testing.
Open preview (PDF)Connectors for use in d.c., low-frequency analogue and digital high speed data applications - Part 7: Cable outlet accessories with assessed quality, including qualification and capability approval - Sectional specifiation
