Proper Grounding Procedures for a PLC Installation Specify That

question 65

Multiple Choice

Proper grounding procedures for a PLC installation specify that:

• A)all enclosures, CPU and I/O chassis, and power supplies be connected to a single low-impedance ground.
• B)paint or nonconductive materials should be scraped away to provide good ground connections.
• C)all ground connections should be made using star washers.
• D)all of these.

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