Overview
ISO 5528:2023 - Ships and marine technology - Deep-sea hydraulic winch equipment - specifies requirements for the design, manufacture, operation, safety, performance, acceptance tests and designation system of deep-sea hydraulic winch equipment. It applies to hydraulic winch systems intended for large-load deep-sea operations in water depths from 3 000 m to 11 000 m. The standard covers combined winch assemblies that include double drums, traction winch, cable storage winch and a right‑angle cable spooling device driven by hydraulic motors.
Key Topics and Requirements
- Scope and composition
- Defines the winch assembly: traction winch, cable spooling device, cable storage winch, hydraulic pump station and control system.
- Types by cable: steel, coaxial, photoelectric composite, fiber; by structure: split and combination.
- Design and safety
- Design in accordance with ISO 7825 and ISO 4413.
- Electrical enclosure ratings: minimum IP56 for open/weather deck, IP44 for cabin installations (IEC 60529).
- Motors: continuous duty; hydraulic system: closed-loop with contamination limits per ISO 4406 (-/18/15).
- Cable/drum geometry: for steel cables, drum/pulley diameters ≥ 16× cable diameter; other cable types to follow manufacturer curvature requirements.
- Mechanical and strength rules
- Allowable stresses defined relative to material yield and proof strengths (e.g., limits of 0.4 and 0.9 times relevant yield/proof strengths under specified loading conditions).
- Winch component specifics
- Traction winch: double drums with straight, replaceable grooves, independent brakes and independent hydraulic drives.
- Cable spooling device: right‑angle spooling, automatic, adaptive swing angle.
- Cable storage winch: independent drive/brakes, slip ring for coaxial/photoelectric composite cables, broken-line groove drum.
- Control and safety functions
- Synchronous control of traction, storage and spooling to maintain tension; manual and automatic modes; emergency stop at all operator locations; interlocks for pump-start.
- Performance & acceptance tests
- Type and delivery tests: pressure, sealing, no-load, load, overload and braking tests.
- Designation & marking
- Product type designation system and marking requirements for traceability.
Applications and Who Uses It
ISO 5528 is relevant for developers, manufacturers and integrators of marine and offshore winch systems, subsea engineering firms, shipyards, R&D teams for deep‑sea operations, procurement and classification societies. Typical applications include ROV/UTV deployment, deep‑sea survey, scientific research, heavy subsea lifting and cable laying in depths up to 11 000 m.
Related Standards
Normative references within ISO 5528 include: ISO 7825, ISO 4413, ISO 3154, ISO 4406, ISO 3828, IEC 60529 and ISO 780 - important for hydraulic safety, cable specification, contamination control and enclosure protection.
Keywords: ISO 5528, deep-sea hydraulic winch, marine winch, hydraulic winch, deep-sea winch equipment, traction winch, cable spooling, cable storage winch, acceptance tests, IP rating, subsea operations.
