GB/T 39617-2020 in English
VALIDShips and marine technology—Single point mooring arrangements for tankers
- Issued on:2020-12-14
- Implemented on:2021-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$190.00
$185.00
$185.00
| Standard No: | GB/T 39617-2020 |
| Document status: | VALID |
| Title in English: | Ships and marine technology—Single point mooring arrangements for tankers |
| Title in Chinese: | 船舶和海上技术 油船用单点系泊设备 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2020-12-14 |
| Implemented on: | 2021-07-01 |
| ICS Classification: | 47.020.10-Hulls and their structure elements |
| Chinese Classification: | U26-Deck fittings |
| Professional Classification: | GB-National Standard |
| Related Keywords: | single point mooring equipment
marine technology single point tankers introduction standard overview oil tankers gas/chemical tankers |
| Related Topics: | Marine oil pollution
tanker Offshore nitrogen production equipment Single Point Oil Tanker Sampling Classification of single point mooring at sea GBT39617 GB/T 39617-2020 Ventilation fan equipment for ships Water refueling ship management technology offshore oil equipment Single pile bollard method for seagoing ships Ship design acceptance technology |
《GB/T 39617-2020船舶和海上技术 油船用单点系泊设备》由TC129（全国船舶舾装标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Standard Overview and Technological Evolution
GB/T 39617-2020 is my country's revised and adopted standard for ISO 17907:2014, which puts forward special requirements for the design, manufacture and acceptance of single point mooring equipment for oil tankers. Compared with international standards, the main technical evolution is reflected in:
- The scope of application focuses on oil tankers (the original standard includes gas/chemical tankers)
- The hard indicator of new material yield strength ≥235N/mm2
- The test loading time is extended from 1 minute to 5 minutes
Comparison of technical requirements for core equipment
| Equipment type | Key parameters | ISO standard | GB/T differences |
|---|---|---|---|
| Bow chain stopper | Safety factor | Unspecified | 2.0 times SWL |
| Bow fairlead | Opening size | Not specified | ≥600×450mm |
| Fairguide roller | Horizontal bearing capacity | Dynamic calculation | 225kN benchmark value |
Special requirements for materials and manufacturing
Typical application case
When a 150,000-ton oil tanker is equipped with a double chain stopper, the following conditions must be met:
- Single SWL≥350 tons
- Forgings are tested according to GB/T6402-2008 Level 2 standard
- Welds must pass a 5-minute continuous loading test
Implementation suggestions
Design phase
- The distance between the cable guide roller and the rear end of the chain stopper is ≥3m
- Emergency towing device can be used as reusable mooring equipment
Acceptance points
- Magnetic particle inspection of all load-bearing castings
- Operating lever force ≤245N (verified by 25kg counterweight)
- Mark with permanent SWL logo
Sample only — not a preview of GB/T 39617-2020
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