If you want the re-start the Eqn # sequence in Table 2, insert the caption as per normal, then select it and press Shift-F9. You should see: {SEQ Eqn \* Arabic}. Edit this so you get {SEQ Eqn \r 1 \* Arabic}, then press F9 to update the field.

Note: Messing around with caption numbering this way might make it harder for you to figure out which one to cross-reference from elsewhere in the document.

__________________
Cheers,
Paul Edstein
[Fmr MS MVP - Word]

Indeed, I have just noticed it :/

So, I'm a little bit confused...what's the best way to number Equations in different tables in order to insert cross-refrences in a text that look like: Tab.1 Eqn. 1, Tab.1 Eqn. 2, Tab.2 Eqn. 1, Tab.2 Eqn. 2...