In some of the maintenance procedures, it is necessary to enter a transformer tank. When this is part of the maintenance procedure, the atmosphere in the tank must be tested for the presence of sufficient oxygen, but there is no need to test for the presence of combustible and/or toxic gases.

Question

Quizplus · Accepted Answer

It is necessary to test for the presence of combustible and/or toxic gases before entering a transformer tank for maintenance purposes.

In Some of the Maintenance Procedures, It Is Necessary to Enter