Surge arresters are also used at bonding points of the cable system [16, 17]. They are referred to as sheath voltage limiter (SVL) arresters. The voltage rating is, however, much smaller than that for phase-conductor arresters, for example: 3 and
6 kV arresters are acceptable on 138 kV systems, 9 kV arresters will be needed only for higher fault current or very long sections of cable. The rating of SVL arresters for single bonded systems is usually higher than that for cross bonded systems [16] because of the induced voltage involved. The main duties for SVL arresters are to