The good news is that the electrical current flowing through low-voltage cabling such as telecommunications, security or video is not strong enough to cause a fatal electric shock.
The Bad news is there still are very real safety risks when performing low voltage installations. Unsettling shocks can occur if one is in an unsafe environment such as if they are ungrounded or standing on a wet spot. In addition, an arc in a low-voltage system has the same potential for igniting explosive materials as one in a 120-plus-volt system.
We highly recommend that the consumer hire a professional contractor that is licensed for 0 to 600 volt installations and whom has the in depth advanced electrical training needed to be certain everything is installed safely.