JT/T 249-2004 内河船舶平式风雨密舱口盖

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中华�民共和国交通行」�标准

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代替������������

内河船舶平式风雨密舱口盖

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中华人民共和国交通部发布

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目次

前言··············，························································，····················，，·········⋯⋯��

�范围·····································································································⋯⋯��

�规范性引用文件·，·�··，，，····，，········，···�···，····�··，，··，··�·，··········�，··········，一��

�分类、结构形式和主要尺寸····。···································，，····⋯⋯，···⋯⋯，��⋯⋯，��⋯⋯��

技术要求····························，·········‘�·········、··，·······················，····················‘··⋯��

验收······················，···············，·················，···················，···················⋯⋯��

�标志······························，···、·············································、·······················⋯⋯��

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月�吕

本标准代替」�����������《平式水密舱口盖》。本标准与」�����������相比主要变化如下�

—标准适用范围调整为“需要保持平整风雨密开口处气

—原�型舱口盖通孔尺寸�����������调整为������������

—增加了�型舱口盖围板尺寸。

本标准由全国内河标准化技术委员会�����������提出并归口。

本标准起草单位�长江船舶设计院。

本标准起草人�王前进、章鸣。

本标准于所代替标准的历次版本发布情况为���，����������������������

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内河船舶平式风雨密舱口盖

�范围

��本标准规定了内河船用平式风雨密舱口盖的类型、结构形式、基本尺寸和技术要求。

��本标准适应于内河船舶需要保持平整风雨密开口处。

�规范性引用文件

��下列文件中的条款通过本标准的引用而成为本标准的条款。凡是注日期的引用文件，其随后所有

的修改单�不包括勘误的内容�或修订版均不适用于本标准，然而，鼓励根据本标准达成协议的各方研究