Anker Powerport PD2

Hello, it’s my first two anker products and i think i have a problem.
i bought a Powerport PD2 charger and a Redux 10000 PD powerbank, the charger i got an elctrical shock (only once) so i decide to measure the voltage on it, on usb-c and lightning cable i measured 80 volt AC not DC between shield conector and ground mains, is this normal?
I measured apple charger, both ipad and iphone, zero volt, huawei fast charge about 40 volt AC, samsung quick charge about 20 volt AC.
Thanks

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