HRC CYLINDRICAL FUSE LINK 4 Amp ( WITH OUT HOLDER ), 1. 2 KV SIZE 50X8 MM FOR VOLTAGE CONTROL AS PER S. NO 13 AND ITEM CODE FO1 TO FO6 AND PLACE OF INSTALLATION S1F90 TO S1F96 OF BILL OF MATERIAL OF RDSO SPEC NO: RDSO/ PE/ SPEC/ AC/ 0184- 2015 ( REV.- 1 ) AND AS PER RDSO LETTER NO EL/ 7. 1. 108/ MSSBC/ 17. 09. 21 SR. NO. 13 MAKE- EATON/ BUSSMAN/ SIBA/ WOHNER/ FERRAZ.