Cable of  adjustable insulation  which allows  to isolate  simultaneously multiple  valves e  general switches. 
 
 The insulation cable extends along the  valves or switch levers  general to isolate, making them  operation impossible.
 The device can be isolated by  four padlocks or with a number  higher when used in conjunction with
 a hasp for multi point isolation-
 You can adjust the insulation later  having closed the cable
 Permanent labels indicating "DANGER  DO NOT OPERATE "