For testing the electrical safety of single-phase and three-phase electrical equipment. The following is tested in accordance with the regulations:
- protective conductor resistance
- insulation resistance
- substitute leakage current
- differential current
- excitation current
- protective conductor current
The test case METRATESTER 5-3P;fkoffer METRATESTER 5-3P complies with the „Guidelines for the workshop equipment of electrical installation companies" published by the Federal Installers' Committee, ZVEH, WFE, EVUs. Mains connection The test case can be operated either via the two associated mains connection cables on an earthed socket or a 16 A CEE mains socket. DIN VDE / EN tests without mains operation: protective conductor resistance, insulation resistance, equivalent leakage current. DIN VDE / EN tests with mains operation on all single-phase and three-phase devices: Residual current, touch current. Function tests with measurement of current consumption and voltage in phases L1/L2/L3. The protective conductor is measured "correctly" in accordance with DIN VDE 0104. Contact surface for finger contact The protective conductor potential can be checked via a contact surface for finger contact. The PE signal lamp lights up if there is a potential difference of more than 100 V between the touched contact surface and the protective contact of the mains connection plug. Residual current measurement Measurement of the residual current complies with the regulations for DIN VDE 0701 / VDE 0702 / OVE EN 50678 / EN 50699. Convenient testing All safety and functional tests are carried out in a practical manner by connecting the mains voltage or individual phases to the test flings via changeover switches. Display functions All measured values are shown on a large, easy-to-read digital display. In addition, limit value exceedances are signaled visually and in some cases acoustically. Robust case body The test case consists of an aluminum frame with a removable lid that can be locked. The associated connection adapters and operating instructions can be stored inside.
