This article looks at effective grounding and bonding, how it is defined by the Canadian Electrical Code, and its importance to electrical safety.
Yes, light curtains are Listed under the category Active Opto-Electronic Protective Devices (NIPF) in the UL White Book
In the IAEI’s quest for safety, not only in the installation of electrical systems free from hazards or potential hazards, we must stress the importance of qualified inspectors.