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防水测试设备对应标准《GJB13A-1997舰船电器规范》的描述


2019-10-25


防水测试设备对军用舰船上的部件进行防水检测时,需要严格按照《GJB13A-1997舰船电器规范》上的试验条件参数,电气设备外壳防护型式基本试验参数如下:

1. 开启式:不试验;

2. 防护式:a、外部观察检查是否符合图样和技术条件,b、用Φ12mm的钢球或标准试指推插;

防水测试设备

3. 防滴式:

l 试品位置:正常位置和前、后、左、右倾斜45°时的位置。

l 试验时间:每一位置12mm,总共60min

l 滴水装置:滴水孔Φ0.4mm,孔距试样表面200mm,滴水量不少于3mm/min(水位降)。

4. 防溅式:用手持莲蓬式防水测试设备向试品任何实际可能的方向进行喷洒。喷水器:外径102mm,孔数121孔,孔径Φ0.5mm,水压80-100kPa,流量10±0.5L/min,时间10min

5. 防水式:用防水测试设备喷嘴对试品各个方向进行冲水。喷嘴内径25mm,出口压力200kPa。喷嘴距试品5m,时间20min。对露天上层建筑(甲板室)甲板上的设备,试验参数可为:喷嘴内径25mm,喷嘴距试品3m,水流量250L/min,时间5min

防水测试设备

6. 水密式:将试品浸入水中。浸水深度10m,时间30min。或外科内充以25-50kPa空气,历时5-30min,应无气泡排出。

7. 潜水式:将试品浸入水中。浸水深度:按产品技术条件规定。时间24h。如采用外部加压或内部抽真空或两者结合的方法,使产生一个与现实深度相当的壳内外压差,则浸水深度(指试品最高点与水面距离)至少应为76mm

防水测试设备对电气设备外壳进行防护试验,如无特殊规定,一般在不通电状态下进行。

防水测试设备试验完成后,产品绝缘电阻和介电强度应满足产品技术条件规定。

同时检查试品外观:a、防护式:Φ12mm的钢球或标准试指,应推插不入试品壳体开孔处b、其它防护型式:应无水进入。

岳信-专注于防水测试设备的研发和生产,期待与您的每一次沟通。

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