GB 16161-2021Regulations for the shape of the marks of the maritime buoyage system in China (English PDF)

Foreword

This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part

1.Structure and Drafting Rules of Standardization Documents" drafted. This document replaces GB 16161-1996 "Regulations on the Shape Display of Navigation Aid Signs in China Sea Areas". Compared with GB 16161-1996, the main The technical changes are as follows:

a) General provisions on the shape characteristics, surface color and coloring method of buoys and fixed signs in water are added (see 4.1);

b) The shape and dimension requirements of the buoy center support are deleted (see

2.3 of the.1996 edition);

c) Deleted the same clauses on the size requirements of fixed signs in water with different shapes, and incorporated them into the general regulations (see 4.4, 3.2, 4.2, 5.2,

6.2 of the.1996 edition);

d) The installation requirements for the base surface and position of the top mark support rod are added (see 4.5);

e) Modified the shape display feature of the conical top mark (see 5.1,

3.1 of the.1996 edition);

f) Modified the size ratio range of the conical lookboard (see 5.2,

3.3 of the.1996 edition);

g) Added the description and legend of the cone shape (see 5.3);

h) Modified the shape display feature of the tank top mark (see 6.1,

1 Scope

GB 16161 fixes the shapes displayed by the aids to navigation in Chinese sea areas - the can, cone, sphere, pillar and spar forms of buoys and the topmarks above them - and what each shape means within the IALA region A system China follows. It is the companion to GB 15359 on light vessels and large buoys: that one covers the large marks, this one the shape language common to all of them, which is what a mariner reads by day when the light is not showing. Issued on 10 August 2021, in force since 1 March 2022, replacing GB 16161-1996. This page is published from the official record of the standard held by the Chinese standards administration: the identification, the dates, the classification and the edition it replaces are taken from there. The clause text, the tables and the numeric limits are not reproduced on this page - they are in the document itself, which is delivered in full in English translation.

This document specifies the conical shape features, tank shape features, spherical shape features, "×" With the "ten"-shaped top mark features, and the shape requirements of column buoys, rod-shaped buoys and articulated lamp post top marks. This document applies to all buoys (excluding light boats, large navigation buoys, ice age buoys) and Fixed sign in water.

2 Normative references

The contents of the following documents constitute essential provisions of this document through normative references in the text. Among them, dated citations documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to this document.

GB 4696 Water Navigation Aid Signs in China Sea Areas

GB 17381 Specifications for Surface Color of Visual Navigation Marks

3 Terms and Definitions

There are no terms and definitions that need to be defined in this document.

4 General provisions

4.1 The shape features and coloring methods of buoys and fixed signs in water shall comply with the relevant provisions of GB 4696, and the surface color shall comply with The relevant provisions of GB 17381.

4.2 The shape features of the buoy should be displayed in one or more forms such as top mark, lookout board and shape. Except for the "×" and "ten"-shaped top marks, the The shape features shown shall have the same shape when viewed from any horizontal direction.

4.3 The buoy top mark, watch board and shape may be partially hollowed out, and the area of the hollowed-out part should not be greater than one-third of the total area, and should be uniform. distributed.

4.4 The shape features of the fixed signs in water shall be displayed in one or more forms such as top marks, watch boards and shapes. The size of the grid should not be smaller than the top mark or lookout board of the buoy set in the same water area.

4.5 The top mark should not be blocked by structures and navigation aids, and should be located at the central axis of the buoy.

5 Conical Shape Features

5.1 When the top mark is used to display the conical shape feature of the buoy, the maximum vertical section of the top mark should be an isosceles triangle, and the diameter of the cone base (X) It should be 0.25~

0.30 of the diameter of the floating body (D), the height of the cone should be

0.90 of the diameter of the bottom of the cone (X), and the height of the support rod should be

0.90 of the diameter of the bottom of the cone (X). 0.35~0.60, in the case of double top marks, the distance between the two top marks should be 0.25~

0.50 of the diameter of the cone bottom (X), see Figure 1 and Figure 2.