setvariable locality?

I am working on a script that "rigs" several buildings with explosives, using:

_x setVariable ["isRigged",1,false];

All of this happens on the server and there is a random % for every building to be rigged. Now if a client uses actions related to that building, can he access that variable? It works as intended in the editor but on a dedicated server I can not test this for sure because I would need a second player. So can setvariables be accessed by clients when the script that set them is executed on the server alone?

From what I know, it should work. To make sure you might want to change the "false" into "true" as that according to the commands page of the wiki broadcasts the variable.

The last boolean is whether or not to broadcast the variable (true/false).

No. Not if the script only runs on the server. You should set the last argument to true instead.