However, it should be understood that the first electrical element and the second electrical element may also be other components, as long as they have different heat dissipation characteristics.

In certain embodiments, the chamber, for example, may only comprise the first electrical element and the second electrical element. Alternatively, the chamber may also comprise a plurality of electrical elements, for example, it may further comprise 3 electrical elements, or it may further comprise 5 electrical elements.

The electrical apparatus further comprises a potting spacer 140, the potting spacer 140 separating the chamber 110 into two sub-chambers: a first sub-chamber 111 and a second sub-chamber 112, the first electrical element 120 is located in the first sub-chamber 111, the second electrical element 130 is located in the second sub-chamber 112.

The potting spacer is intended to characterize a component used to separate a chamber of the electrical apparatus in the process of potting; it, for example, may be made of rubber, or may be made of another elastic material.

The potting spacer, for example, may be an integrated single piece, or may also comprise a plurality of sub-components. The plurality of sub-components, for example, may be joined to one another by plugging or bonding to form the potting spacer.

The first sub-chamber and the second sub-chamber are intended to differentiate between two different chambers separated by a potting spacer, instead of being intended to limit the sub-chambers. The first sub-chamber and the second sub-chamber, for example, may be sub-chambers which have the same volume, or may also be sub-chambers which have different volumes.