I'm new in this field. I want to find some shop drawings to study, including cabling, security and BAS. Could anyone tell me where I can find some sample?
could go to a local engineering firm or other contractor and give them your reasoning and see if they have any old plans they are allowed to give you. Not sure if they can or will but hey never know till you ask. Or go to the library and see if they have any electrical blue print reading text books.