33.74.00 Extra High Voltage (EHV) Switchgear and protection devices
33.74.16 Oil EHV Circuit Breaker
33.74.13 Air EHV Circuit Breaker 33.74.16 Oil EHV Circuit Breaker 33.74.19 Gas EHV Circuit Breaker 33.74.30 EHV Disconnect Switch 33.74.36 EHV Utility Fuses 33.74.39 EHV Surge Arresters 33.74.40 EHV Rod Gap 33.74.43 EVH Shunt Reactors 33.74.43.13 EHV Shunt Reactor Banks 33.74.43.16 EHV Current Limiting Reactors