Example for 1 module

● Spring operating mechanism with dual maloperation-proof system
Operating mechanism includes load switch operating mechanism, switch-fuse combination operating mechanism, and circuit breaker operating mechanism. It

can carry out by manual or motor after fixing electromotor. The operating mechanism itself has dual maloperation-proof function: firstly, as the

interlocking device is equipped inside the mechanism, so the operator must operate according to the regulated procedure, otherwise the operation can’t

carry out, unless the operator damages the interlocking device by force. Secondly, there is a movable baffle before the position of operating hole,

which can avoid the faulty operation by lock protection.

● Mechanical interlocking for circuit breaker / load switch
Both circuit breaker and load switch is vacuum switch. The reliable mechanical interlocking not only exists between vacuum switch and disconnector/

earthing switch, but also exists between earthing switch and the front panel of cable compartment, which prevents the faulty operation and avoids safety

accident.

● Simply and convenient connection for switch and cable
The cable compartment equips with European standard bushing which meets the standard of DIN47636. Its cable terminal is made of silicon rubber which can

touch and with function for flood proofing, what is more, it can also equip with surge arrester device.

● Rustproof cabinet with high mechanical strength
Cabinet is made of 3mm steel plate and the steel plate is made by electrostatic spraying technology, which makes the cabinet with strong mechanical

strength and good rust protection.

● Green & environment friendly solution
CKSS solid-insulated switchgear is a completely environment-friendly product.
---- Stable chemical performance of epoxy resin makes CKSS without any poison or harm.
---- It will not produce any volatile matter in the production process of automatic pressure gel (APG technology). No spill impurity produced after

gelling. No waste gas produced after solidifying.
---- The switchgear has no SF6 gas inside. No waste or harmful materials produced during working.
---- After the service life, the epoxy resin can be decomposed soon by heat treatment and chemical treatment. It can recycle either by extraction

technique.
---- All CKSS materials can be recycled. It will not produce any waste liquid or waste gas.

● Safe and reliable
CKSS solid-insulated switchgear has excellent safety performance.
---- Completely without SF6 gas makes the switchgear to avoid the explosion accident causing by SF6 gas.
---- Its vacuum interrupter has explosion proof function, and solid-insulated layer has further protection to ensure the safety.
---- The independent module design between each phase makes the switchgear to avoid short-circuit accident causing by phase-to-phase fault.
---- The interlocking system between main switch, disconnector, earthing switch and cable compartment door ensure the personal safety under repairing

and maintenance.
---- The watch window provides visual indication for the opening/closing position of the disconnector, which strengthens the safety of operating and

maintenance.
---- The glass transition temperature of epoxy resin ensures the insulating capacity of epoxy resin and silicon rubber keep unchanging in the high

temperature.
---- The operating mechanism adopts all-gear driving system, which enhances the reliability of mechanism.
---- The protection class of solid-insulated switch body reaches IP67.
---- It can work as well as normal condition even if soaking in the water of 1m height within 48hours.

● Single handle operation for disconnector/ earthing switch
The switchgear has closing position and earthing position. It just needs one operating handle to control. The mechanical interlocking exists between

main switch and disconnector/ earthing switch, which makes the disconnector/earthing switch can’t operate until the main switch is on the position of opening. It also have the reliable interlocks between the main switch and the front panel of cable compartment.

Zhuhai Comking Electric Co., Ltd. was founded in 2006 in Zhuhai, China. With our European partners we are now recognized as a leading manufacturer in power transmission and distribution industry throughout China and Asia.

We are specialized in manufacturing of vacuum circuit breaker, solid insulated switchgear, SF6 gas insulated switchgear, ring main unit and load break switch for indoor and outdoor use.

With our continuous R&D in the fields of design, technology, quality and marketing, our products are recognized as a leader in our field.

Our strict quality control and full compliance with the quality assurance procedure with certification to ISO9001:2008, ISO14001:2004 and OHSAS18001 make us remain at the forefront of technology and quality.

Customer focus and meeting the demands of a changeable market make us to commit to a huge budget for products development which brings a combination of enhanced environmental values, technological advantages that enhance value and safety in the design.

Our core focus throughout the group remains on the development and growth of our employees and that we continue to recognize the value and commitment that they bring to the group throughout the world.