Voltage/BIL: 35 kV class, typical BIL 170 kV. Short-circuit: 25–40 kA short-time withstand common; confirm with system fault study. Standards: IEC 62271-200; internal arc testing per IEC/TR 61641 if specified. Functional Specification for 15 kV, 25 kV, or 35 kV Underground Distribution Switchgear Functional Specification for 15 kV, 25 kV, or 35 kV Underground Distribution Switchgear Scope This specification applies to three-phase, [select #] - way [select # -source, select # -tap], 50-60 Hz, fully dead. 35 kV switchgear supports sub-transmission and industrial feeders that need higher insulation and fault duty. Proper BIL, clearances, and arc controls ensure safe operation. Upper and lower pole grounds may be the same size and run straight through at the neutral (as shown) provided that it is sized adequately for the upper pole ground. Install lower pole ground per Plate SOB-37. Use this. The Fast Cycle Voltage Regulator (VR-FC) is a new edition to GE's portfolio of pole-mounted voltage regulators and is based on the most popular utility configurations. The VR-FC is manufactured with a standard design, providing an optimized feature set, with short-cycle lead times at a competitive. The LineBOSS™ NBS, Nielsen Bypass Switch, was originally designed in 1972 by Carl Nielsen, P. to allow non-interrupting bypassing and energizing (cut-in or cut-out) fixed booster transformers. The NBS switch now provides continuous power to load-side customers when energizing or de-energizing. m available through 35kV. Other methods involve complicated installations that are extremely C difficult in congested underground rmolded with EPDM.