This document applies to the technical requirements for the design, testing, supply, installation, and related supporting equipment (sensors, controllers, cables, etc.) of distribution equipment on SEC in 13.8/33kV Surge Arrester and MV Overhead distribution network.

This compact switch integratesload switching, isolation, and earthingin one, using SF6 gas for superior insulation and arc extinction. Ideal for 12kV–40.5kV medium-voltage grids, it features a fully sealed design, ensuring stable operation in harsh environments (high humidity, dust, extreme temperatures). Compliant with IEC/ANSI standards, it supports distribution automation, cuts maintenance costs, and boosts power supply reliability for utilities, industrial parks, and renewable energy s

The VD4 MV Vacuum Circuit Breaker is a reliable 12–24kV switching solution for medium-voltage grids. It offers 30,000 overhaul-free mechanical operations, a modular spring actuator for easy use, and sealed vacuum interrupters for stable performance in harsh environments (high humidity, dust). Compliant with IEC/ANSI standards, it suits utilities, industrial parks, and renewable energy stations, supporting distribution automation and boosting power supply reliability.

As a pro in medium-high voltage switchgear design & manufacture, Rockwill's 145kV RVD SF6-free breaker offers stable performance, 30% maintenance savings, wide current adaptability for safe, reliable power everywhere.

Rockwill RCW-38 outdoor vacuum recloser has passed all DEKRA tests and is reliable in performance, ensuring the safety of high-voltage power!