What is dry and wet wiring in plc ?

Question

Accepted Answer

Dry wiring refers to wiring without any external protection, while wet wiring involves the use of protective coatings or materials.

Dry wiring is typically used in low-risk environments where there is no chance of moisture or other contaminants damaging the wiring.
Wet wiring is used in high-risk environments where moisture or other contaminants are present, such as in chemical plants or outdoor installations.
Examples of wet wiring materials include heat shrink tubing, silicone sealant, and epoxy resin.
Dry wiring is generally less expensive and easier to install than wet wiring, but may not be suitable for all applications.
Proper selection of wiring type is important for ensuring the safety and reliability of a PLC system.

Top Hindustan Zinc Instrument Engineer interview questions & answers