Triple Couplings Of Electroweak Gauge Bosons At LEP2

The non-abelian self-couplings of electroweak gauge bosons (TGC)$\gamma W^+ W^-Z^0$ is one of the most important consequences of the SU(2)L x U(1)y symmetry of the standard model. Their measurements and the search of possible anomalous values is one of the main physics goal at LEP2. From the data collected in 1997 the four LEP collaborations have improved the limits already stated for the couplings values. The results presented here correspond to a total integrated luminosity of $80pb^{-1}$ /experiment at $161^{(9.9pb^{-1})}$, $172^{(10.4pb^{-1})}$, $183{(57pb^{-1})}$ Ge