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star A.C. Devices
star A.C. EMI Filter
star A.C. Spectrum Verion 2
star A.C. Spectrum
star Digital Oscilloscope
star Flat Top A.C.
star Isolation Transformer - Safer Power Supply ?
star Isolation Transformer
star MCB - For Testing
star Relay - Power Failure Manual Reconnection System
star Soft Start Circuit
star Soft Start Circuit 2
star Tube Amplifier
5Z3P, 6N9P, EL34
 

Useful Info.
star AWG Vs mm
 

My AV System
star System Info.
star Testing Result 2016-5-14
star Testing Result 2014-7-27
   

Case Opening
star Cambridge Audio
CA 351C
star KEF Q300 Speaker
   

Unboxing
star 5z3p 6n9p EL34
Tube Amplifier DIY kit
star AudioQuest USB A-B Forest 1.5m
star B&W 685 S2 speaker
star WireWorld RCA Luna 7 1m
   

Other DIY
star Medeco Lock Replacement
star Vacuum Pump for RC Oil Damper

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MCB - For Testing
MCB

I will use this MCB Box for testing my projects in order to preventing my home's MCB from tripping.

For my home, the Overload tripping is 20A.

For this MCB, the Overload tripping is 10A.

Moreover, there is a RCBO rated at C16 for the protection of Electricity leakage.
MCB wiring Wiring starts ...
The A.C. 220V go through the RCBO first, then the MCB.
The two MCBs are not in use.They are the Feet of the Volatage & Ampere Meter.
The LIVE wire has to pass through the sensor of the Ampere Meter.
The Voltage & Ampere Meter needs 220V A.C. power.
The 2 MCBs become the feet of the Voltage & Ampere Meter.
MCB with Voltage & Ampere Meter

Before switching on the MCB, please check the connectivity of the wires ... ...

Live to Live ?

Neutral to Neutral ?

Earthing is O.K. ???
Finish ... ...
RCBO testing