With The Widespread Use Of Withstand Voltage Testers, More And More Power Supply Manufacturers Choose Withstand Voltage Testers For Incoming Material Inspection And Product Sampling, And Some Are Even Used To Equip Automation Equipment. Let’s Analyze The Characteristics And Application Scale Of The Withstand Voltage Tester With Us Today.
As For The Withstand Voltage Tester, Most Of Them Are More Than One Thousand Or More Than Two Thousand On The Market. They Have A Single Function And A Single Type. Our Company’s Withstand Voltage Tester, The NS2OO Series, Has An Independent Channel Withstand Voltage Tester. Pressure Tester, Four-Channel Pressure Tester, Four-Channel Left And Right Switch Pressure Tester, And Independent Channel Pressure Tester. Satisfied With The Choice And Application Of Most Users.
Features: Open Circuit And Short Circuit Detection Function, Human Body Protection Function, Arc Detection Function. And It Can Combine Multiple Methods To Output, And Can Judge The Products Of Each Channel Independently.
Withstand Voltage Tester Can Be Divided Into Electrical Insulation Strength Tester, Dielectric Strength Tester And So On.
The Working Principle Of The Withstand Voltage Tester Is: Apply A Voltage Higher Than The Normal Operation To The Insulator Of The Equipment Under Test, And Continue For A Regular Period Of Time. The Voltage Applied To It Will Only Cause A Small Leakage Current, Which Is The Insulation. Better.
Program-Controlled Power Supply Module, Signal Collection And Dispatching Module And Computer Control System Three Modules Constitute The Inspection System.
Choose 2 Goals Of The Withstand Voltage Tester: The Maximum Output Voltage Value And The Maximum Alarm Current Value.
With The Development Of The Manufacturing Skills Of Pressure Testers, New Types Of Pressure Testers Are Constantly Emerging, And Their Operating Principles And Methods Of Use Are Also Different From Traditional Instruments. It Is Necessary For Every Safety Inspection Engineer To Understand Its Operating Principle And Use The Withstand Voltage Tester Correctly.
As Electronic Safety Inspections Will Inevitably Cause Electric Shock Accidents, The Following Precautions Should Be Followed In Order To Minimize The Risk. The Importance Of Safety Inspection Of Electronic And Electrical Products Has Become Increasingly Prominent, And The Development Of Withstand Voltage Testers Is Very Sensitive.
1. Conduct Theoretical Training For Operators And Contact Each Inspection Policy;
2. Review And Update All Safety Inspection Processes;
3. Separate The Inspection Address From Aisles Or Far Away From Workshop Personnel;
4. Set Up Barriers That Cannot Pass In The Inspection Area;
5. Clearly Visible Signs Indicating “Danger” And “High Pressure” In The Inspection Area;
6. A Clearly Visible Sign Indicating “Qualified Personnel Can Enter” Clearly In The Inspection Area;
7. Ensure Reliable Grounding Of All Equipment;
8. The Operator Needs Both Hands To Start The Inspection Instrument, Or Supply Equipment That Can Automatically Block High Voltage When The Safety Lock On The Tested Sample Is Opened;
9. Supply Palm-Type Switch, Which Can Cut Off The Power Supply Sensitively In Urgent Situations.
The Determination Of The Test Voltage Of The Withstand Voltage Tester Should Refer To Different Safety Standards. If The Test Voltage Is Too Low, The Insulating Material Will Pass The Test Due To Insufficient Voltage And The Unqualified Insulation; If The Voltage Is Too High, The Test Will Be Insulated The Material Causes A Permanent Hazard. However, There Is A General Rule That Is To Use The Experience Formula: Test Voltage = Power Supply Voltage × 2 + 1000V. For Example: The Power Supply Voltage Of The Test Product Is 120V, Then The Test Voltage=120V×2+1000V=1240V. In Practice, This Method Is Also The Method Adopted By Most Safety Standards. The Reason For Using 1000V As Part Of The Basic Formula Is That The Insulation Function Of Any Product Is Impacted By Transient High Voltages Every Day. Laboratory And Research Indicate That This High Voltage Can Reach Up To 1000V.
Post time: Feb-06-2021
