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Installing an EV Charger/Wall box and finding a hidden cheat, using substandard electrical wires. How can I check or see? Study the electrical installation for EV Wall box/Charger that meets safety standards so that you won't be tricked. Watch other clips, click on the KSB Ezy channel icon. ** Edit ** Edited the omission of RCD type A, in addition to detecting AC leakage current, it can also detect Pulse DC leakage current (Residual Pulsating Direct Current). I apologize for the omission. Time: Content 3:34 - Electrical circuit for meter and wall box installation 12:33 - Standard specifications and installation 21:08 - You should know about electrical wire standards 29:50 - How can you tell if substandard and standard electrical wires are good? 39:25 - If the electrical wires are substandard, will there be a problem? How? 39:40 - Things you should know about breakers 46:22 - Brief summary when using substandard electrical wires