A receptacle that is part of the essential electrical system may require which designation for safety and identification?

A receptacle that is part of the essential electrical system may require which designation for safety and identification?

• A. Lockable
• B. Nonmetallic
• C. Any of These
• D. Tamper Resistant

Answer: (D)

Tamper Resistant is the designation that communicates a built-in safety feature of the receptacle: it has shutters or other mechanisms to prevent the insertion of foreign objects, reducing shock risk and helping ensure reliability for safety-critical (essential) electrical systems. When a receptacle is part of an essential electrical system, clearly identifying it as tamper resistant signals that it is designed to stay protected from tampering, which is important for life-safety and critical equipment continuity. The other options don’t convey this safety function: a lockable feature implies a locking mechanism rather than a standard safety designation, nonmetallic refers to material rather than a safety capability, and “any of these” isn’t accurate because only tamper resistant communicates the necessary safety and identification requirement.

Tamper Resistant is the designation that communicates a built-in safety feature of the receptacle: it has shutters or other mechanisms to prevent the insertion of foreign objects, reducing shock risk and helping ensure reliability for safety-critical (essential) electrical systems. When a receptacle is part of an essential electrical system, clearly identifying it as tamper resistant signals that it is designed to stay protected from tampering, which is important for life-safety and critical equipment continuity. The other options don’t convey this safety function: a lockable feature implies a locking mechanism rather than a standard safety designation, nonmetallic refers to material rather than a safety capability, and “any of these” isn’t accurate because only tamper resistant communicates the necessary safety and identification requirement.