1  The switchgear is assembly type; the circuit breaker is floor roll-out.

2  Adopted new compound insulation, vacuum circuit breaker has the feature of good interchange ability and easy replacement.

3  The truck shelf is equipped with lead-screw drive mechanism, which can move truck easily and prevent the mechanism be damaged from faulty operation.

4  All the operations can be done with the door shut.

5  All interlocks connecting with the main switch, truck and door of switchgear adopt compulsive mechanical lock and meet the requirements of five prevention.

6  The space of the cable compartment lock is abundant for the connection of several cables.

7  The instant earthing switch is used for earthing and short-circuiting of the circuit.

8  The degree of protection for the enclosure is IP3X. It is IP2X when the door of truck compartment opens. It conforms to GB3906-1991, DL404-1997 and refers to IEC-298 standard.