Tell us about yourself!
Would hot-melt adhesive be less fiddly than multiple pieces of tape, and less likely to leak?
All understood and accepted. My comment was more to highlight the oddness of the IEC classification than to be critical of your post, my apologies if that was your impression.
According to the IEC "high voltage" is above 1,000 volts AC or 1,500 volts DC so your mains supply at 120 volts AC is far from "high voltage". In fact it is classed as low voltage though I accept that it can give you a nasty jolt. Even our more shocking 240 volts is now perversely rated as "low".