ISO 4857:2023 PDF

Name: ISO 4857:2023 — Ships and marine technology — Test procedures and methods for windlasses and winches
SKU: ISO 4857:2023
Price: 25 EUR
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Ships and marine technology — Test procedures and methods for windlasses and winches

Название (английский):

ISO 4857:2023

Ships and marine technology — Test procedures and methods for windlasses and winches

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 7
Дата публикации:: 16 мая 2023 г.
Издание:: ISO IS 4857 edition 1 version 1
ICS:: 47.020.50

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Описание (английский):

This document specifies procedures and methods for the factory acceptance test for the complete set of windlass and winch system, which is performed after the equipment is assembled. The test methods and procedures specified in this document apply to windlasses and winches.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 4857:2023 - Ships and marine technology - Test procedures and methods for windlasses and winches - specifies factory acceptance test (FAT) procedures for a complete windlass and winch system after assembly. It defines required pre-test checks, test sequencing, instrumentation and calibration requirements, and the core functional and load tests (no-load, drum/warping end load, drum holding, cable-lifter load/over-load and brake tests). The standard ensures marine deck machinery - including windlasses, anchor capstans, mooring winches and combined units - meet performance, safety and verification expectations before delivery.

Key topics and requirements

Scope and applicability

Applies to assembled windlasses and winches and all auxiliaries; tests cover functional, normal operating and overload conditions.

Pre-test checks

Verification of model, serial number, completeness, installation on test bench, lubrication, test ropes/weights and instrumentation conformity.

Instrumentation and calibration

Test devices must have valid certificates of conformity; lifting weights and measurement equipment must be calibrated.

No-load test

Functional simulation of controls/alarms; run at low speed with brakes/clutches set correctly; specified running times (e.g., 5 min per direction on each gear change; >15 min total per direction).

Drum / warping end load tests

Load cycles at 75% rated load (≥3 lifts/lowers, stroke ≥6 m) and continuous operation at 100% rated load for over 30 min; automatic tension and braking functions tested where applicable.

Drum holding and cable-lifter brake tests

Holding load applied with no slip for 2 min; verify no permanent deformation; tests may be verified by calculation where permitted.

Cable-lifter tests

Load, over-load and brake tests, including tooth engagement checks and automatic brake function (overload tests of at least 2 min as specified).

Test execution rules

Tests must follow specified sequence; irrelevant items may be omitted based on configuration; only one coaxial device of same spec may be tested; alternative power supply allowed if agreed.

Reporting

Full test records and a test report with conclusions and results are required.

Applications and who uses it

Primary users: shipbuilders, deck machinery manufacturers, OEMs, test laboratories, classification societies, shipowners and procurement teams.

Practical uses: factory acceptance testing (FAT), supplier verification, commissioning support, compliance checks against performance and safety requirements, and evidence for regulatory or commercial acceptance.

Related standards

ISO 3730 - Mooring winches

ISO 3828 - Deck machinery vocabulary and symbols

ISO 4568 - Windlasses and anchor capstans

ISO 6482 - Warping end profiles

Keywords: ISO 4857:2023, windlass and winch test procedures, factory acceptance test (FAT), marine deck machinery, cable-lifter test, drum brake test, mooring winch.

ISO 4857:2023 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and who uses it

Related standards

Технические детали

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BS ISO 3828:2008

Shipbuilding and marine structures. Deck machinery. Vocabulary and symbols.

ISO 4568:1986

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