for solar for ac meaning to rub 80 foot earthing Earthing is mandatory for solar bor 

Here are a few title suggestions for a report or article related to earthing bars for solar AC systems:
1. *"Optimizing Solar AC Systems: The Role of Earthing Bars"*
2. *"Comprehensive Guide to Earthing Bars in Solar AC Installations"*
3. *"Enhancing Solar AC Efficiency with Proper Earthing Bar Techniques"*
4. *"The Importance of Earthing Bars in Solar AC System Safety"*
5. *"Earthing Bar Best Practices for Solar AC Systems"*
These titles can be tailored further depending on the focus of your writing.