海船阴极保护设计标准与DNV规范的对比分析

Contrastive analysis between cathodic protection design and DNV-RP-B401 & GB 8841

文章以M6轮FPSO海工工程牺牲阳极系统设计为例,根据挪威船级社DNV规范RP-B401中对牺牲阳极的设计要求,对比国家标准"海船牺牲阳极阴极保护设计和安装(GB8841)"中的要求,分析指出DNV规范RP-B401中对海洋工程船舶牺牲阳极设计与国家标准的不同以及特殊要求。对比分析结果表明,DNV船级社的规范对于牺牲阳极设计的参数及要求较之国家标准更加详尽和严谨。同时文章对入籍DNV船级社的海洋工程船舶牺牲阳极的设计也可作为参考。

This paper describes cathodic protection design of M6 FPSO project based on DNV - RP - B401, points out some different design discords between DNV - RP - B401 ＆ GB 8841. As the result of analysis, design parameters and requirements of DNV - RP - B401 are more particular and precise. It can be reference for cathodic protection design of some other offshore projects.