Loop testers or loop testers are used to test the safety of electrical systems. These devices measure the impedance of the short-circuit loop between the outer conductors of a circuit, calculating the Prospective Short-circuit Current (PSC). The protection of the circuit (circuit breaker) must therefore trigger at a lower current than the prospective short-circuit current to avoid excessive heating of the lines and thus a fire hazard. https://elecena.pl/product/17984606/p-2715-digital-loop-psc-tester 2021-04-28 https://elecena.pl/product/17984606/p-2715-digital-loop-psc-tester 2021-07-11 https://elecena.pl/product/17984606/p-2715-digital-loop-psc-tester 2023-01-30 https://elecena.pl/product/17984606/p-2715-digital-loop-psc-tester 2025-04-07 https://elecena.pl/product/17984606/p-2715-digital-loop-psc-tester 2025-09-06