That is not the accepted method of installing suspended ceilings. Ceilings are hung on #10 solid steel wire that is passed once through the hole in the ceiling main and then wound tightly with a pair of Kleins. The free end is clipped short, not passed back through the bottom of the hitch. It is a technique that commercial carpenters must learn. While there is little in the photo to give perspective, that looks more like picture hanging wire than substantial wire rope.