JSN(W) mechanical five-proof program lock

An overview: Type I series mechanical five-proof program lock is a high-voltage switchgear lock first developed and patented by Zhenjiang Electrical Equipment Factory in the 1980s. The lock forces operators to operate electrical equipment correctly in accordance with established safe operating procedures, thus avoiding misoperation accidents and perfectly meeting the five prevention requirements proposed by the Ministry of Water and Power.
This product only needs one key to operate multiple locks according to the specified circuit and has the ability to identify the opening and closing status of each knife gate mechanism. Comply with the Ministry of Machinery/"General Technical Conditions for Mechanical Locks for High-voltage Switchgear". Passed the batch trial production review and appraisal organized by the Ministry of Machinery and Water and Electricity.
2. Scope of use
Suitable for wiring methods of various voltage levels, various indoor and outdoor power distribution devices.
Three basic lock specifications
Lock name
Length, width and height
Lock stroke
Lock pin diameter
Remarks
Program key
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Maximum working angle of rotation
Control switch lock




Indoor knife gate



Threaded guide bush
Outdoor knife gate



Fixed plate part not included
Cabinet network ( Door) lock




Ground lock



Ground rod
Straight pull knife Gate lock




Key control box



Depends on the key hole position

Four commonly used program numbers
Five ordering instructions
Please read our factory's program lock instruction manual and program sample before ordering.
For products outside the sample of customized solutions or subscribers of non-standard solutions, they must provide detailed information such as primary wiring diagrams, electrical equipment arrangement diagrams, and operating methods. Our factory will design the program and products on our behalf or sign a separate technical agreement. Our factory supplies products and services in accordance with the agreement.
See the six technical parameters
Three major product series of Seven Company
Safety and prevention of errors] Program lock | High voltage live display device | Anti-error electromagnetic lock | High voltage short circuit grounding wire | Mechanical locking
Electrical components] High-voltage isolating switch | Indoor high-voltage grounding switch | Vacuum circuit breaker | High-voltage vacuum contactor | Single-phase vacuum contactor
Complete sets of electrical appliances] Center cabinet | Box-type switch cabinet | Switch cabinet | High-voltage vacuum ring Network cabinet | Box-type substation
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