ISO 5894-1999 Ships and marine technology - Manholes with bolted covers《船舶与海上技术 盖子用螺栓固定的人孔》.pdf

1、Reference number ISO 5894:1999(E) ISO 1999 INTERNATIONAL STANDARD ISO 5894 Second edition 1999-12-01 Ships and marine technology Manholes with bolted covers Navires et technologie maritime Trous dhomme avec couvercle boulonnISO 5894:1999(E) PDF disclaimer This PDF file may contain embedded typefaces

2、. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing

3、 Adobes licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized

4、 for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO 1999 All rights reserved. Unless otherwise specified, no part

5、 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 ISOs member body in the country of the requester. ISO copyright office Case postale 56

6、 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 734 10 79 E-mail copyrightiso.ch Web www.iso.ch Printed in Switzerland ii ISO 1999 All rights reservedISO 5894:1999(E) ISO 1999 All rights reserved iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of

7、 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. Int

8、ernational 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 t

9、he rules given in the ISO/IEC Directives, Part 3. 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. International Standard

10、ISO 5894 was prepared by Technical Committee ISO/TC 8, Ships and marine technology, Subcommittee SC 8, Structures. This second edition cancels and replaces the first edition (ISO 5894:1978). The following amendments have been made to the first edition. a) The nominal sizes 500 mm 400 mm and 600 mm 4

11、50 mm for type A manholes are no longer specified. b) Type B, type C and type D manholes are no longer specified. c) The type A manhole has been renamed type O manhole (O for oval). d) The nominal size 800 mm 600 mm for type O has been added. e) The type E manhole (E for elliptical) with nominal siz

12、e 800 mm 400 mm has been added. f) For the nominal sizes 600 mm 400 mm and 450 mm 350 mm for type O, the sizes a 2 and b 2 (in the 1978 edition) are reduced by 20 mm. The position of fasteners is therefore changed. g) The sizes for length and breadth of covers and coaming rings (L 2 , L 3 , b 2 and

13、b 3 ) have been added. h) The designation has been added.INTERNATIONAL STANDARD ISO 5894:1999(E) ISO 1999 All rights reserved 1 Ships and marine technology Manholes with bolted covers 1 Scope This International Standard specifies requirements for watertight and oiltight manholes of the current type

14、with bolted covers, for general shipboard use other than for pressure vessels. It specifies the dimensions for the holes in the plating and the number, size and position of the fasteners. All forms of manhole, whether of raised coaming, surface mounted or recessed cover types, shall conform to these

15、 principal particulars. The details of the manholes shall be the responsibility of the manufacturer. NOTE Users of this International Standard should note that, while observing the requirements of the standard, they should at the same time ensure compliance with such statutory requirements, rules an

16、d regulations as may be applicable to the individual ship concerned. 2 Normative reference The following normative document contains provisions which, through reference in this text, constitute provisions of this International Standard. For a dated reference, subsequent amendments to, or revisions o

17、f, the publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For an undated reference, the latest edition of the normative document re

18、ferred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 262: 1998, ISO general-purpose metric screw threads Selected sizes for screws, bolts and nuts. 3 Typical forms, nominal sizes and dimensions All dimensions are given in milimetres. Manholes s

19、hall be classified as type O or E according to nominal sizes (see Figures 1 to 3 and Table 1). The dimensions of the manholes and the spacing of the fasteners shall be in accordance with Figures 1 to 7 and Tables 1 and 2. The nominal size L 1 b 1 , shall correspond to the length and breadth of the c

20、lear opening as given in Figures 1 to 3. The thread of fasteners (nuts and bolts) shall be in accordance with ISO 262. NOTE 1 Figure 1 shows examples of surface mounted and raised coaming forms of manholes. The recessed form of manholes shall be similar. In order to ensure interchangeability of cove

21、rs and gaskets, the dimensions of these components and the fastener coordinates shall also be as given in this International Standard. NOTE 2 Figure 1 shows welded studs as an example. Other reliable joints between the studs and plate ring are permissible.ISO 5894:1999(E) 2 ISO 1999 All rights reser

22、ved Key 1 Cover 2 Gasket 3P l a t e r i n g 4 Raised coaming NOTE L 1 b 1 is a clear opening. Figure 1 Typical sections through manholes; surface mounted and with raised coaming typeISO 5894:1999(E) ISO 1999 All rights reserved 3 Key 1 Fastener M20, hole 24 mm 2 Clear opening Figure 2 Manhole with c

23、over type O (oval) Key 1 Fastener M20, hole 24 mm 2 Clear opening Figure 3 Manhole with cover type E (elliptical)ISO 5894:1999(E) 4 ISO 1999 All rights reserved Table 1 Types, nominal sizes, preferences and sizes Dimensions in millimetres Nominal size Size Type Preference 1 Preference 2 L 1 L 2 L 3

24、b 1 b 2 b 3 450 350 a 450 470 570 350 370 470 O 600 400 600 620 720 400 420 520 800 600 800 820 920 600 620 720 E 800 400 800 830 930 400 430 530 a Not suitable as access opening; the sizes are too small. A safe passing through cannot be ensured. 4 Fastening details Details of fastener coordinates f

25、or manholes of types O and E are given in Figures 4 to 6 and in Table 2. Figure 4 Fastener coordinates for manhole type O, nominal sizes 450 mm 350 mm and 600 mm 400 mm (shown 600 mm 400 mm)ISO 5894:1999(E) ISO 1999 All rights reserved 5 Figure 5 Fastener coordinates for manhole type O, nominal size

26、 800 mm 600 mm Figure 6 Fastener coordinates for manhole type E, nominal size 800 mm 400 mmISO 5894:1999(E) 6 ISO 1999 All rights reserved Table 2 Fastener coordinates and numbers Dimensions in millimetres Type OE Nominal sizes 450 350 600 400 800 600 800 400 Number of fasteners 16 20 26 24 L 4 0,5

27、260 335 437 437 Coordinates of fasteners b 4 0,5 48 47 49 46 L 5 0,5 218 298 409 386 b 5 0,5 135 135 142 122 L 6 0,5 142 231 356 311 b 6 0,5 194 201 224 175 L 7 0,5 48 143 282 226 b 7 0,5 215 236 287 211 L 8 0,5 48 194 137 b 8 0,5 240 327 233 L 9 0,5 98 46 b 9 0,5 340 244 Auxiliary sizes (e 1 ) 890

28、(e 2 ) 490 (r) 215 240 340 (m) 50 100 100 ISO 5894:1999(E) ISO 1999 All rights reserved 7 5 Geometrical design of the ellipses axis Large : AB axis Small : CD Figure 7 Design of the ellipses 6 Materials Cover plate, ring and/or coaming shall be of ships quality mild steel or shall be of equivalent w

29、elding quality. Minimal tensile strength: 400 N/mm 2 . Studs and screws shall be of steel and of mechanical property class 4.8 minimum and 4.6 minimum respectively. Studs, screws and nuts of equivalent corrosion-resistant steel are permissible. The gasket material shall be suitable for service in co

30、ntact with oil, sea water and fresh water. 7 Quality of manufacture The steel plate and sections shall be flat and free from pitting, reasonably clean and sufficiently smooth for a satisfactory joint to be made without recourse to machining the surface. The gasket material shall have a thickness app

31、ropriate to the intended service. The dimensional accuracy of the manhole cover, and of the gasket and of the drilling and spacing of the holes for fasteners shall be such as to ensure interchangeability of these components (see also Table 2). The access openings shall be free from rough edges or su

32、rfaces likely to cause injury to the hands.ISO 5894:1999(E) 8 ISO 1999 All rights reserved 8 Designation Manholes with bolted covers conforming to this International Standard shall be designated by the following indications, in the order given: a) denomination: manhole; b) number of this Internation

33、al Standard: ISO 5894; c) type (code letter), as specified in clause 3; d) nominal size, as specified in clause 3. EXAMPLE Designation of a manhole with a bolted cover in accordance with this International Standard, type O, with the nominal size 600 mm 400 mm: Manhole ISO 5894 O 600 400ISO 5894:1999(E) ICS 47.020.10 Price based on 8 pages ISO 1999 All rights reserved