By using the data of A. Sedky, J of Physics and Chemistry of Solids 70, 483 (2009), we presented here the fluctuation induced excess conductivity in Bi1.7Pb0.3Sr2Ca2-xYxCu3Oy superconductors with various x values (0.00 x 0.50). The logarithmic plots of excess conductivity (∆σ) and reduced temperature (Є) reveal three different exponents corresponding to two crossover temperatures due to shifting the order parameter dimensionality against a decrease of temperature. In the critical field region, the order parameter exponents are two dimensional (2D) as Y increases up to 0.30, but it is changed from 2D to three dimensional (3D) with further increase of Y up to 0.50. While, the order parameter exponents are not systematic with Y in both normal and mean field regions, and they are fluctuate between short wave SW, 2D and 3D. The coherence lengths, inter-plane spacing, interlayer coupling, Ginsburg number and anisotropy are generally increased by increasing Y up to 0.50. While, G-L parameter, critical magnetic fields and critical current density are decreased as Y increases. Finally, the possible reasons for the above findings are also mentioned.