Which statement about intrinsically safe wiring labeling is true? no more than 25 feet apart.

Which statement about intrinsically safe wiring labeling is true? no more than 25 feet apart.

• A. Labels no more than 25 feet apart
• B. Labels at non-uniform intervals
• C. Labels every 50 feet
• D. Labels only near connectors

Answer: (A)

Intrinsic safety limits the energy in a circuit so it cannot ignite a hazardous atmosphere. To keep that protection visible along the entire run, labeling must be placed at regular, close intervals. Labeling no more than 25 feet apart ensures that every portion of the wiring clearly shows it’s intrinsically safe, making it easier for installers and inspectors to verify the protection remains intact between devices and junctions. If labels were placed at uneven intervals or only near connectors, stretches of cable could go unlabeled, creating confusion and increasing the risk of improper work. Durable, legible labels should be maintained along the whole length to support ongoing safety and compliance.

Intrinsic safety limits the energy in a circuit so it cannot ignite a hazardous atmosphere. To keep that protection visible along the entire run, labeling must be placed at regular, close intervals. Labeling no more than 25 feet apart ensures that every portion of the wiring clearly shows it’s intrinsically safe, making it easier for installers and inspectors to verify the protection remains intact between devices and junctions. If labels were placed at uneven intervals or only near connectors, stretches of cable could go unlabeled, creating confusion and increasing the risk of improper work. Durable, legible labels should be maintained along the whole length to support ongoing safety and compliance.