Man electrocuted on roof

...and secondary power supplies not identified.

+1 on the ideas here.

I always use a meter and then go back with a voltstick .

I have found failed disconnects and secondary feeds that would not have been fun to find by touch.

I ALWAYS cut the handles off failed disconnects and mark a warning with paint markers ....so the next guy won't DIE! ... I mark units as to and if the have secondary feeds. I always try to get a customer to repair a disco that's failed but still remove the handle as they may say sure and blow it off or forget....

I could not live with myself knowing I left something that injured or killed some one!!!!!!

I hate to hear of anyone getting killed in a totally preventable manner ... Its sad...

I kill power at the disconnect and always make sure that power is off there by checking across each leg and to ground on the load side.

Those voltage pens are a good idea...you never know if the disconnect is phukered....then you touch the handle and BLAMO!