For a transformer vault located on the 2nd floor of a high-rise building, the minimum height of an oil-confining sill below the door into the vault is how many inches?

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Prepare for the Independent Electrical Contractors (IEC) Year 4 Exam. Access flashcards, multiple choice questions, and detailed explanations. Enhance your readiness and achieve your certification!

Multiple Choice

For a transformer vault located on the 2nd floor of a high-rise building, the minimum height of an oil-confining sill below the door into the vault is how many inches?

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