{"id":651,"date":"2021-05-31T05:39:48","date_gmt":"2021-05-31T05:39:48","guid":{"rendered":"https:\/\/dev.ikonixasia.com\/ar\/2021\/05\/31\/iec-60601-3-key-tests-to-ensure-the-electrical-safety-of-blood-pressure-monitor\/"},"modified":"2022-12-27T10:48:21","modified_gmt":"2022-12-27T10:48:21","slug":"iec-60601-3-key-tests-to-ensure-the-electrical-safety-of-blood-pressure-monitor","status":"publish","type":"post","link":"https:\/\/www.ikonixasia.com\/ar\/iec-60601-3-key-tests-to-ensure-the-electrical-safety-of-blood-pressure-monitor\/","title":{"rendered":"IEC 60601 3 Key Tests to Ensure the Electrical Safety of Blood Pressure Monitor"},"content":{"rendered":"
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A 5 min Read<\/span><\/p>\n<\/div>\n<\/div>\n<\/div>\n

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Since the COVID-19 outbreak, people realize the key to combat this pandemic is to stay safe and healthy. In other word, means stay at home and maintain a healthy lifestyle by home exercising. Home-use medical devices are also getting popular in monitoring this process. Especially the blood pressure monitor (also known as a sphygmomanometer) became a must-have in most families. However, most consumers would never have known how these simple and easy-to-use devices may have hidden danger during operation if they are not designed and manufactured properly. To ensure users’ safety, the international medical device safety regulations have strict electrical safety testing requirements. Here’s how.<\/p>\n

How to Ensure the Electrical Safety of Blood Pressure Monitor?\u00a0<\/strong><\/h2>\n

A blood pressure monitor is not only required high accuracy and reliability, but safety is also equally important. Therefore, IEC 80601-2-30 (Particular requirements for non-invasive sphygmomanometers) and IEC 60601-1 (General Requirments) specifically requires the blood pressure monitor should pass the following three electrical tests: ground bond test, Hipot test, and leakage current test to ensure the patient and operators\u2019 safety.<\/p>\n

Ground Bond Test<\/strong><\/p>\n

To ensure the fault current can flow to the ground when the blood pressure monitor is malfunctioning, it needs to conduct the ground bond test. The tester connects to the earth terminal of the blood pressure monitor and injects at least 25 A DC or AC current. The return path connects to the chassis or grounding protection. After 5 to 10 seconds, measure the voltage drop of this circuit and calculate the ground resistance (ground resistance = voltage drop\/ testing current). This should less than 200 m\u03a9.<\/p>\n

Hipot Test<\/strong><\/p>\n

The key to prevent the patient and operator from getting electric shock is the insulation protection of the blood pressure monitor. To verify its quality and safety, IEC 60601-2-30 required to conduct the following three Hipot test:<\/p>\n