pintakosketustestejä

Pintakosketustestejä, known in English as surface contact tests or touch tests, are a safety evaluation method used primarily in the context of electrical equipment. Their purpose is to assess the risk of electric shock to a person touching accessible conductive parts of an appliance or device. These tests are crucial for ensuring that users are protected from dangerous voltages that might become exposed under normal operating conditions or during foreseeable fault situations.

The tests simulate a human finger or other body parts coming into contact with potentially live surfaces. Various standards, such as those from the IEC (International Electrotechnical Commission), define specific test probes and procedures. These probes are designed to replicate the electrical properties and physical dimensions of a human finger. The test involves applying the probe to accessible conductive parts and checking for the presence of hazardous voltage.

If the voltage measured on the accessible part exceeds a specified limit, the equipment fails the pintakosketustesti and is considered unsafe. The limits are determined based on factors like the type of equipment, its intended use, and the environmental conditions. These tests are a fundamental part of product safety certification and are performed by manufacturers and testing laboratories to comply with regulatory requirements and protect consumers.