Shipbuilding and marine structures — Deck machinery — Towing winches for deep sea use

This International Standard specifies requirements for the design, operation, performance and acceptance tests of towing winches having electric, hydraulic, diesel or steam drive. It is applicable to towing winches for deep sea use. It does not consider fibre rope winches but does not exclude their use.

Construction navale et structures maritimes — Auxiliaires de pont — Treuils de remorque pour haute mer

General Information

Status
Published
Publication Date
21-Jun-2012
Current Stage
9020 - International Standard under periodical review
Start Date
15-Apr-2017
Completion Date
15-Jul-2022
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ISO 7365:2012 - Shipbuilding and marine structures -- Deck machinery -- Towing winches for deep sea use
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INTERNATIONAL ISO
STANDARD 7365
Second edition
2012-07-01
Shipbuilding and marine structures —
Deck machinery — Towing winches for
deep sea use
Construction navale et structures maritimes — Auxiliaires de pont —
Treuils de remorque pour haute mer
Reference number
ISO 7365:2012(E)
ISO 2012
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ISO 7365:2012(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2012

All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,

electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISO’s

member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2012 – All rights reserved
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ISO 7365:2012(E)
Contents Page

Foreword ............................................................................................................................................................................iv

1 Scope ...................................................................................................................................................................... 1

2 Normative references ......................................................................................................................................... 1

3 Terms and definitions ......................................................................................................................................... 1

3.1 General terms ....................................................................................................................................................... 1

3.2 Types of winches (see Figure 1) ...................................................................................................................... 1

4 Design and operation ......................................................................................................................................... 4

4.1 Material stresses ................................................................................................................................................. 4

4.2 Basic calculation ................................................................................................................................................. 4

4.3 Load alarm device ............................................................................................................................................... 4

4.4 Brakes ..................................................................................................................................................................... 4

4.5 Drum design ......................................................................................................................................................... 5

4.6 Auxiliary equipment ............................................................................................................................................ 6

4.7 Speed control ....................................................................................................................................................... 6

4.8 Emergency release ............................................................................................................................................. 6

5 Performance specifications .............................................................................................................................. 7

5.1 Load requirements .............................................................................................................................................. 7

5.2 Speeds .................................................................................................................................................................... 7

6 Acceptance tests ................................................................................................................................................. 7

6.1 Drum brake holding test .................................................................................................................................... 7

6.2 Operation under load ......................................................................................................................................... 7

6.3 Control system utility test ................................................................................................................................. 8

6.4 Emergency release test ..................................................................................................................................... 8

7 Designation system ............................................................................................................................................ 8

7.1 Designation of product models ....................................................................................................................... 8

7.2 Nameplate .............................................................................................................................................................. 8

© ISO 2012 – All rights reserved iii
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ISO 7365:2012(E)
Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies

(ISO member bodies). The work of preparing International Standards is normally carried out through ISO

technical committees. Each member body interested in a subject for which a technical committee has been

established has the right to be represented on that committee. International organizations, governmental and

non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International

Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.

The main task of technical committees is to prepare International Standards. Draft International Standards

adopted by the technical committees are circulated to the member bodies for voting. Publication as an

International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. ISO shall not be held responsible for identifying any or all such patent rights.

ISO 7365 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 4,

Outfitting and deck machinery.

This second edition cancels and replaces the first edition (ISO 7365:1983), which has been technically revised.

iv © ISO 2012 – All rights reserved
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INTERNATIONAL STANDARD ISO 7365:2012(E)
Shipbuilding and marine structures — Deck machinery —
Towing winches for deep sea use
1 Scope

This International Standard specifies requirements for the design, operation, performance and acceptance

tests of towing winches having electric, hydraulic, diesel or steam drive.
It is applicable to towing winches for deep sea use.
It does not consider fibre rope winches but does not exclude their use.
2 Normative references

The following referenced documents are indispensable for the application of this document. For dated

references, only the edition cited applies. For undated references, the latest edition of the referenced document

(including any amendments) applies.
ISO 2408, Steel wire ropes for general purposes — Minimum requirements

ISO 3828, Shipbuilding and marine structures — Deck machinery — Vocabulary and symbols

ISO 6482, Shipbuilding — Deck machinery — Warping end profiles
3 Terms and definitions

For the purposes of this document, the terms and definitions given in ISO 3828 and the following apply.

3.1 General terms
3.1.1
nominal speed

maximum speed of hauling and rendering ropes maintained by winches under drum load

3.1.2
rendering load

maximum rope tension at the drum exit when the drum just starts to rotate in the opposite direction to the applied

driving torque, the prime mover being set for limited torque, with a first layer of the rope wound on the drum

3.2 Types of winches (see Figure 1)
3.2.1
right-hand winch

winch where the reduction gear or drive of the drum(s) is on the right-hand side of the drum(s), in relation to an

observer situated on the side of the motor, power supply or local controller
3.2.2
left-hand winch

winch where the reduction gear or drive of the drum(s) is on the left-hand side of the drum, in relation to an

observer situated on the side of the motor, power supply or local controller
3.2.3
central winch

winch where the reduction gear or drive of the drum(s) is in the middle of the two drums

© ISO 2012 – All rights reserved 1
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ISO 7365:2012(E)
3.2.4
winch operable from both sides

winch where the reduction gear or drive of the drum(s) is on both sides of the drum

3.2.5
waterfall winch
winch where multiple drums are arranged from high to low
3.2.6
structural form of winches

code representing a winch related to the relative position of drums to power supply, drum quantity and height of drum

center

NOTE 1 Structural form codes appear in brackets next to the subheadings in Figure 1.

NOTE 2 The designation of structural form codes is shown in the diagram below.

Single left-hand winch (L1) Single winch operable from both sides (B1) Single right-hand winch (R1)

Double left-hand winch (L2) Double right-hand winch (R2)
2 © ISO 2012 – All rights reserved
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ISO 7365:2012(E)
Double winch operable from both sides (B2)
Double central winch (C2)
Double left-hand Double waterfall winch Double right-hand
waterfall winch (L2W) operable from both sides (B2W) waterfall winch (R2W)
Triple left-hand waterfall winch (L3W) Triple right-hand waterfall winch (R3W)
© ISO 2012 – All rights reserved 3
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ISO 7365:2012(E)
Triple waterfall winch operable from both sides (B3W)
Figure 1 — Diagrams of winch types
4 Design and operation
4.1 Material stresses

The manufacturer of the winch shall be responsible for determining the strength requirements of the component

parts of the winch to withstand all loads of the respective nominal sizes, as specified in Table 2.

4.2 Basic calculation
4.2.1 Stalling load of the winch

The allowable calculated stresses of any affected part of the winch, based on simple elastic theory, shall not be

greater
...

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