Overview
IEC 60811-411:2012 - part of the IEC 60811 series - defines the test procedure to evaluate low‑temperature brittleness of filling compounds used in electric and optical fibre communication cables. It applies to non‑metallic filling materials that are used to block water or cushion optical fibres and ensures these compounds retain their protective properties at low temperatures. This part cancels and replaces Clause 6 of IEC 60811-5-1:1990; users should read it in conjunction with IEC 60811-100:2012 (Annex A shows full details of the replacements).
Key Topics
- Scope and purpose: Procedure for determining lower‑temperature brittleness of filling compounds for communication and optical fibre cables.
- Test focus: Assessing mechanical behaviour of non‑metallic filling materials under low‑temperature conditions to detect embrittlement that could compromise cable integrity or optical performance.
- Standards linkage: Designed to be used alongside IEC 60811-100:2012 for normative references and replacement details; supersedes earlier clause in IEC 60811-5-1:1990 without specific technical changes.
- Quality assurance: Provides an objective basis for factory and type testing, R&D validation, and materials acceptance criteria.
Applications
This standard is practical for organizations and activities that need to ensure cable reliability in cold environments:
- Cable manufacturers validating new filling compounds or formulations for optical and communication cables.
- Materials and component suppliers demonstrating compliance for product datasheets and procurement.
- Independent test laboratories performing standardized low‑temperature brittleness testing.
- R&D and product development teams assessing candidate materials for harsh‑climate deployments.
- Quality, compliance and procurement teams specifying acceptance criteria in contracts and technical specifications.
Who Should Use It
- Cable designers and manufacturers
- Materials scientists and compound formulators
- Third‑party test laboratories
- Quality assurance and regulatory compliance personnel
- Procurement teams specifying cable components for cold‑climate projects
Related Standards
- IEC 60811-100:2012 - general guidance and Annex A (details on replacements)
- IEC 60811 series - broader test methods for non‑metallic cable materials
- IEC 60811-5-1:1990 - earlier edition (Clause 6 withdrawn and replaced)
By applying IEC 60811-411:2012, stakeholders ensure filling compounds used in optical and communication cables are tested against standardized low‑temperature brittleness criteria - supporting reliable cable performance, reduced field failures, and clear compliance evidence for cold‑climate applications.