Cloud-based collaboration was still new in 2016. You could share drawings with non-AutoCAD users via browser or mobile.
Q: How do I activate AutoCAD Electrical 2016? A: You can activate AutoCAD Electrical 2016 using a valid license key or by signing in to your Autodesk account. Autodesk AutoCAD Electrical 2016 -32-64Bit---Fi...
If you want, tell me which legal option you prefer and I’ll give step-by-step instructions (e.g., how to download from Autodesk, request legacy media, or migrate projects to a newer version). Cloud-based collaboration was still new in 2016
AutoCAD Electrical 2016 includes all standard AutoCAD features plus a suite of specialized tools for electrical systems: Automated Tasks: how to download from Autodesk