If a small appliance catching fire is enough to endanger your office, your office is wrong. Go fix it, and stop with the security theater. An appliance consuming too much power should never be a fire hazard. A bad extension chord should not be a fire hazard in any usual space in an office.

And by all means, if you have some high-risk area (storage rooms are quite common ones), do make special policy for it. But if you insist on the same policy for every area, you are actually endangering people.