SAE J 2790-2010
冷却液系统管套的电阻抗评估用试验方法

Test Method for Evaluating the Electrical Resistance of Coolant System Hose Covers

SAE J 2790-2010 发布历史

This test method provides a standardized procedure for evaluating the electrical resistance of automotive coolant hose covers. It is known that an electrical potential exists between the engine and the radiator. Coolant hose cover conductivity has been determined to be a factor to reduce hose clamp life when vehicle build variations allow possible contact of the hose or the clamp to metal components on the radiator and engine thus completing an electrical circuit. The ensuring electrical current can undercut the clamp protective coating, leaving it vulnerable to the corrosive effects of road salts, moisture, and other environmental contaminants. SAE Recommended Practice J 1684 addresses the electrochemical resistance of the tube portion of the coolant hose.

SAE J 2790-2010由美国机动车工程师协会 US-SAE 发布于 2010-02-15。

SAE J 2790-2010 在中国标准分类中归属于: J96 冷却系统与加热装置。

SAE J 2790-2010 发布之时，引用了标准

• SAE J 1684-2005 评价冷却剂系统软管和材料的耐电化学性的试验方法

SAE J 2790-2010的历代版本如下：

• 2010年02月15日 SAE J 2790-2010 冷却液系统管套的电阻抗评估用试验方法
• 2021年08月01日 SAE J 2790-2021

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标准号

SAE J 2790-2010

发布日期

2010年02月15日

实施日期

废止日期

无

中国标准分类号

J96

国际标准分类号

43.060.50

发布单位

US-SAE

引用标准

ASTM E 177-2008 ASTM E 177-2010 ISO 17025 SAE J 1684-2005

被代替标准

SAE J 2790-2007

适用范围

This test method provides a standardized procedure for evaluating the electrical resistance of automotive coolant hose covers. It is known that an electrical potential exists between the engine and the radiator. Coolant hose cover conductivity has been determined to be a factor to reduce hose clamp life when vehicle build variations allow possible contact of the hose or the clamp to metal components on the radiator and engine thus completing an electrical circuit. The ensuring electrical current can undercut the clamp protective coating, leaving it vulnerable to the corrosive effects of road salts, moisture, and other environmental contaminants. SAE Recommended Practice J 1684 addresses the electrochemical resistance of the tube portion of the coolant hose.