If you can forgive the exaggeration or over-exuberance here, note only that this is a suggestion. Say for example that when you are approached, or approach someone for general contracting sandy ut work, you do need to make sure that no wires are crossed if you will. You do need to make sure that all the dots and all the tee’s have been adequately covered in order to safeguard you from both the risk management and financial points of view.
No wires must cross, unless this practical maneuver is deliberate and part of the maintenance and repair program of work being proposed. This has to do with electrical contracting work in particular. The electrical workings of any business premises will always be complex. If it is not independently arranged for the free-standing industrial site (this would be rare, but nevertheless), it is likely to be connected to other properties as well as the local or national grid.
Any form of electrical supply disruption can have a major impact not only on the single business but across the board. There is little that the business owner can do on his own, other than cover his own end of the bargain if you will. By working things out professionally with his electrical contractor in terms of cooperating along the lines of servicing and maintenance agreements, he will be acting in his own best interests.
He will be practicing his good houseman-ship and risk management. And as can be seen, this is not something that can be accomplished singlehandedly. It needs the support of those contracting networks. But they need to be viable and credible. Company representatives can help counter-cover the workmanship required by vetting all credentials and work records as thoroughly as possible.