Le mveliso yenziwe nge-alloy yesilivere neye-copper yendabuko, kwaye izinga layo lokunyibilika yi-10-13. Isebenza kwi-fuse ephumayo efana ne-RW10, RW11, RW12. PRWG1, PRWG2, njl.
Le mveliso yenziwe ngesilivere kunye ne-alloy yendabuko, kwaye izinga layo lokunyibilika yi-10-13. Isebenza kwi-fuse ephumayo efana ne-RW3, i-RW7 njl.
Le mveliso yenziwe nge-alloy yesilivere neyethusi yendabuko, kwaye izinga layo lokunyibilika yi-10-13. Isebenza kwi-RW5-35KV, i-RW6-66KV drop-out fuse.