protection fittings: are used to restrain aeolain vibration of conductor and ground wire of overhead transmission lines, or to grade and to shoeld the insulator string of 330kv and above transmission lines and substations. For example, dampers, spacers, grading and shielding rings...totally 23series and 109 sizes.
For 330kv and above, the protection fitting must be no cisible corona fot ht 1.05 maximum operating voltage.
Refer to catalogue no:Protection Fittings |
