HP22

Low melt alloy soldered to tinned copper foil
HP23

Fully insulated using partial wrap of adhesive tape, plus a strip of adhesive tape underneath
HP24

Tinned copper foil
HP25

Full wrap of non-adhesive film over multiple conductors
HP26

Non-adhesive full insulation, secured with two strips of adhesive tape 6.0mm min creepage
HP27

Multi-layers of non-adhesive film secured with two strips of adhesive tape