[USR-TC] about backup of flash image and dsp's code

Hi All, Here we have frequent electricity problem of overvoltage , and UPS is also problematic. Thats why there may be chances of frequent sudden power off. Will it affect anyway to TC1000, I want to take backup of Code of Hiper ARC and Hiper DSP and NMC,, How?? , so that incase of anything failure I can restore it .. how?? And what else should I take as backup and how? Please provide me some guidance. Thanks Pankaj