GB 24418-2020Aids to navigation on the bridge over maritime navigable waters, China (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009: This standard replaces GB 24418-2009 "Bridge Navigation Aid Marks in Navigable Waters of China Sea": Compared with GB 24418-2009, the main The technical changes are as follows:

---Added the term and definition of the "best passing point of navigation bridge hole" (see 3:2);

---Related content of "Mark Classification" (see 4:1, 4:1 in:2009 edition);

--- Deleted the "two-way navigation bridge mark" and "one-way navigation bridge mark" (see 4:2 and 4:4 in the:2009 edition);

---Added the "Best Pass Point Mark for Navigation Bridge Hole" (see 4:2);

---Modified the location and characteristics of the "Bridge Hole Prohibited Navigation Sign" (see 4:4, 4:5 in the:2009 edition);

--- Deleted the content of the daily mark size of the visual aids mark (see 4:7 of the:2009 edition);

---Modified the "Radio Navigation Beacon" requirements (see Chapter 5, Chapter 6 of the:2009 edition);

---Modified the requirements of "Sound navigation mark" (see Chapter 6, Chapter 5 of the:2009 edition);

--- Deleted the "security assessment" requirement in "

7 Setting Rules" (see 7:1, 7:1 of the:2009 edition);

---The method for determining the best passing point has been added (see 7:2);

---Added the requirement that bridge pier warning signs are not required under conditions such as flood lighting (see 7:3);

---Modified the condition of not having "marks on the left and right sides of the navigation bridge hole" (see 7:4, 7:2 of the:2009 edition);

1 Scope

GB 24418-2020 is the Chinese national standard on aids to navigation on the bridge over maritime navigable waters, china, in the field of services and company organization. It carries no /T suffix, which in the Chinese system means compliance is mandatory: a product or a practice within its scope has to meet it to be lawfully made, sold or carried out in China. It was issued on 17 November 2020 by the State Administration for Market Regulation; Standardization Administration of China, and has been in force since 1 December 2021. Classification: ICS 03.220.40, CCS R63. 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 issuing body are taken from there. The clause text, the tables and the numeric limits are in the document itself, which is delivered complete in English translation.

This standard specifies the types, functions, shapes, sizes, colors, light quality, settings and naming of bridge navigation aid signs in navigable waters in the Chinese Sea rule: This standard is applicable to bridges (including railways and roads crossing navigable waters Roads, pipelines and aqueducts and other fixed buildings) set up navigation aid signs:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB 4696 Water Navigation Aid Marks in China Sea

3 Terms and definitions

The following terms and definitions apply to this document: 3:

1 Bridge navigation aid sign aidstonavigationonbridges In order to ensure the navigation safety of bridges and ships, it has the functions of indicating position, warning of danger and indicating traffic: Sound navigation mark, radio navigation mark: 3:

2 Bestpoint(s)ofpassage The best position when the ship passes through the bridge opening:

4 Visual aids

1 Classification of signs The visual aids to navigation include the best passing point mark of the navigation bridge hole, the mark on the left side of the navigation bridge hole, the mark on the right side of the navigation bridge hole, the bridge hole no-navigation mark and Pier warning signs: 4:

2 The best pass mark of navigation bridge hole 4:2:

1 The mark of the best passage point of the navigation bridge hole is set on the truss of the navigation bridge hole to indicate the position of the best passage point of the navigation bridge hole: 4:2:

2 Refer to Figure 1 and Table 1 for the signs and characteristics of the best passing points of navigation bridge holes: