Areas to test voltage needs to be partitioned areas. To prevent people to travel through, and must not have any other side effects performance. Security covers an area of work depends on the voltage in each test.
The area will be subject to pressure test the space. The barrier to prevent people from passing traffic. And requires no action other side. The security covering work. Based on the pressure in each test.
The area will have to block pressure testing area. By blocking the people traveling to pass by. And no other side effects, performance The safety cover an area of work. Based on the pressure in each test.