On the Airbus series, the TCAS RA's are inhibited at certain stages of flight as a function of aircraft altitude. The following cases are inhibited on the A320:
"all intruders flying below 380 ft AGL when own aircraft altitude is below 1700 ft AGL. all TA aural messages and all RAs below 1100 ft in climb and 900 ft in descent. In this case, the RAs are converted to TAs. 'Descend' type advisories below 1220 ft AGL at takeoff or 1000 ft in approach. 'Increase Descent' RA below 1450 ft"
The above is an extract from A320 FCOM 1.34.80 p6. The logic is the same on A330, but some of the height bands are higher, and there are no aural TAs at all below 500 ft AGL.
Hope this helps
