DISTR BY ELECTRICAL PROBS DURING PREFLT; E135 FLT CREW CROSSES HOLD SHORT LINE AT CLT.

Narrative

THE FIRST FLT OF THE DAY WE ARRIVED AT THE ACFT AND THE GPU WAS HOOKED UP BUT EVEN WITH THE GPU SWITCH ON; WE COULD NOT GET GND PWR. THE RELAY WAS NOT CLOSING. THE BATTERIES STARTED TO FADE QUICKLY; AND I HAD TO GO TELL THE GND CREW (WHO WERE BUSY WITH THEIR DUTIES AS THEY SHOULD BE) THAT WE NEEDED TO START AN ENG. THE APU WAS ALSO INOP'ED/MEL'ED. WE STARTED THE R ENG AND GOT PWR FROM IT. AFTER THE ENG WAS STARTED; THE ACFT ACCEPTED GND PWR. THE ACFT WAS BOARDED AND THE DOOR CLOSED FOR AN ON-TIME DEP. AS HAPPENS WITH THE EMJ; SOMETHING DIDN'T BOOT UP RIGHT AND WE GOT AN AUTOPLT AND YAW DAMPER FAILURE MESSAGE THAT DID NOT GO AWAY. IN ORDER TO REBOOT OR RESET THE SYS; WE SHUT DOWN THE ENG AND ALL PWR TO THE ACFT. WHEN WE PWRED UP AGAIN; THE MESSAGES WENT AWAY. THIS INTERRUPTED ALL FLOWS AND WE HAD TO DO SOME OF THE FIRST FLT ITEMS AGAIN; IF NOT ALL; I DON'T REMEMBER. I TELL YOU ALL THIS BECAUSE THESE THINGS MAY HAVE BEEN ON MY MIND AND MAY HAVE DISTR ME. I CANNOT BE CERTAIN. ON TAXI OUT TO RWY; WE MAY HAVE PASSED THE HOLD SHORT LINE. DETECTION: STOPPED SHORT OF THE RWY AND DID NOT SEE A HOLD SHORT LINE. BECAUSE MOST OF THE TIME THERE IS A HOLD SHORT LINE; I AM LED TO BELIEVE I MAY HAVE JUST NOT SEEN IT. BEING DARK AND GLANCING BACK AND FORTH AT MY CHART TRYING TO MAKE SURE I WAS GOING IN THE CORRECT DIRECTION MAY HAVE CONTRIBUTED TO ME MISSING THE LINE; BUT I NEVER SAW THE HOLD SHORT LINE. ATC SAID NOTHING TO US. THERE IS A LARGE AREA IN FRONT OF RWY 5 AND THERE WAS PLENTY OF ROOM FOR ACFT TO LAND WITHOUT ANY CONFLICT.