As shown in figure "A" of the illustration,...

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Question 1 of 205eccefa4bacbc34ba4d48392

As shown in figure "A" of the illustration, what statement is true concerning the door interlock? See illustration EL-0172.

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Question 1 of 20

5eccefa4bacbc34ba4d48392

As shown in figure "A" of the illustration, what statement is true concerning the door interlock? See illustration EL-0172.

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🔍 Key Concepts

• Door interlock purpose in medium‑voltage switchgear (protecting personnel from exposed live parts) • Relationship between door position (open/closed) and disconnect switch position (open/closed) • Fail‑safe design: what positions are allowed when access to live equipment is possible

💭 Think About

• When the door is open, should the disconnect switch be allowed to energize the compartment? Think about personnel safety. • When the disconnect switch is closed (energized), should you be able to open the door and expose the bus bars? Why or why not? • Which answer choice describes a typical safety interlock that prevents access to live parts AND prevents energizing when the door is open?

✅ Before You Answer

• Make sure the correct choice prevents the door from opening when the disconnect is closed (energized). • Make sure the correct choice also prevents the disconnect from being closed when the door is open. • Eliminate any option that would allow the compartment to be energized with the door open, or the door to be opened while everything is still energized.

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Study

Question 1 of 205eccefa4bacbc34ba4d48392

As shown in figure "A" of the illustration, what statement is true concerning the door interlock? See illustration EL-0172.

Back

Question 1 of 20

5eccefa4bacbc34ba4d48392

As shown in figure "A" of the illustration, what statement is true concerning the door interlock? See illustration EL-0172.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed