I am planning to buy a Tesla coil from Alieexpress. When it arrives I wonder what are measurements I could take to make sure iit is safe. For example: how/where can I measure if the primary coil and the condesators do properly discharge after it has been switched off and how fast?

Interestingly the primary coil of the coil I want to buy is made from isolated wire (means there is some sort of PVC shielding around it just like a normal household cable would have). Is then charge/discharge of the primary an issue at all?

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    \$\begingroup\$ A tesla coil should never be considered safe. \$\endgroup\$ – Hearth Jul 6 '18 at 20:36
  • \$\begingroup\$ Electricity is never safe, but we put safeguards around it and still use it. There is imho no reason why a Tesla coil should be different. \$\endgroup\$ – J Fritsch Jul 6 '18 at 20:46
  • \$\begingroup\$ @JFritsch So what safeguards are you fitting to this Tesla coil then? \$\endgroup\$ – Solar Mike Jul 6 '18 at 22:57
  • \$\begingroup\$ Not applying power would render it safe. \$\endgroup\$ – Andy aka Jul 7 '18 at 9:12

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