Sheath Voltage Limiter, SVL (ETK type)
ETK is apsidal surge arrester to use as sheath voltage limiters or SVL. Application of SVL is to protect the cable outer jacket from electrical over voltages during transient events. SVLs are installed in link boxes, where sheaths are cross bonded to protect sheaths of cables.
ETK arresters are produced with rated voltage from 0.8 up to 15 [kV], with energy discharge class of 2 and nominal discharge current of 10 kA according to standard of IEC 60099-4.