The field Connection Name Equivalences is used in order to designate which connection points (if any) have the same electrical potential, meaning those connection points that have a physical (conductive) electrical connection to the connection point you are currently classifying.

In the CNS classification this is done under class CNS_CP|4|3 (Electrical Connection) with the attributes Identifier and Connection Name Equivalences.

Identifier and Connection Name Equivalences

Example:

From the electrical diagram above, we see which connection points have the same potential:

So for S1 we write:

Connection Name Equivalences     |  S2

For S2:

Connection Name Equivalences     |  S1

In the case that there are more connection points with the same potential, for example S1, S2, S3, S4, it would look like this:

For S1:

Connection Name Equivalences     |  S2||S3||S4

For S2:

Connection Name Equivalences     |  S1||S3||S4

For S3:

Connection Name Equivalences     |  S1||S2||S4

For S4:

Connection Name Equivalences     |  S1||S2||S3