TORONTO (Standard & Poor's) Nov. 25, 2003--Standard & Poor's Ratings Services today said it assigned its 'A-' senior secured debt rating on electricity transmission company AltaLink L.P.'s proposed C$125 million bond issue. At the same time, Standard & Poor's affirmed its 'A-' long-term corporate credit rating on AltaLink. The outlook is stable. Due to the ring fencing between AltaLink and its parent, AltaLink is substantially insulated from AltaLink Investments L.P. The measures in place shielding AltaLink include a structure reflective of a single-purpose entity, with covenants that restrict the activities of the company to electricity transmission within Alberta; the existence of an independent trustee; a debt covenant package that includes a negative pledge and the absence of cross default or