Secure the cold end of the heating element with butterfly clips or stainless steel G-clamps, and fasten the aluminum foil strip connected to the busbar with a specialized aluminum clamp. To prevent mechanical stress from being transmitted to the heating element via the aluminum foil strip, the length of the connecting strip must be longer than the straight-line distance between the end of the heating element and the busbar, with an allowance of at least 25 mm.

The aluminum foil strip should be carefully adjusted before fastening. When tightening the screws at the end of the heating element, apply force naturally without bending to avoid external stress affecting the natural state of the heating element. The connection of heating elements is first fixed to the busbar, and then each heating element is connected to the others one by one.