ISO 13990-3:2006

Overview

ISO 13990-3:2006 - Textile machinery and accessories - Yarn feeders and yarn control for knitting machines - Part 3: Dimensions for connecting and interconnection cables - defines dimensional requirements for multi‑wire connecting cables and interconnection cables used in the low‑voltage electrical installations of yarn feeders and yarn control devices. The standard ensures mechanical fit, reliable electrical contact and interoperability between cables, cable conduits and contact strips on knitting machine accessories.

Key topics and requirements

• Scope: Applies to multi‑core, low‑voltage connecting and interconnection cables for yarn feeders and yarn control devices in knitting machines.
• Dimensional specifications: Provides precise external dimensions, core spacing and tolerances for connecting cables (two‑ to five‑core variants) to ensure correct seating in cable conduits and trouble‑free electrical contact.
• Interconnection cable geometry: Specifies interface dimensions between connecting cable surfaces and contact surfaces - including allowable distances and widths (examples in the standard: contact distance range 1.5–3 mm; mid‑contact reference 9.5 ± 0.5 mm; width limits for cable contact surface < 2.5 mm).
• Compatibility focus: Emphasizes repeatable mechanical fit and electrical connection in accordance with ISO 13990‑2 layout and connection points.
• Normative references: Read together with ISO 13990‑1 (vocabulary) and ISO 13990‑2 (connecting dimensions for devices).

Applications and practical value

• Machine manufacturers: Use ISO 13990‑3 when designing yarn feeders, yarn control modules and their electrical harnesses to guarantee plug‑and‑play compatibility across machine lines and suppliers.
• Cable and connector suppliers: Apply the dimensional tolerances to produce mating cables and contact strips that meet industry expectations for knitting machinery.
• Electrical and maintenance engineers: Reference the dimensions during installation, troubleshooting and replacement to reduce downtime and avoid misalignment or poor electrical contact.
• System integrators and safety teams: Rely on the standard to ensure low‑voltage wiring is mechanically compatible and minimizes risk of intermittent contacts or mechanical damage.

Practical benefits include improved interchangeability, reduced field modification, simplified procurement of spare cables and consistent electrical performance across knitting machine platforms.

Related standards

• ISO 13990‑1: Vocabulary - definitions used across the series
• ISO 13990‑2: Connecting dimensions for yarn feeders and yarn control devices - mating device dimensions that ISO 13990‑3 is intended to interface with

Keywords: ISO 13990-3:2006, yarn feeders, yarn control, knitting machines, connecting cable dimensions, interconnection cable, textile machinery, low voltage cable standards.