METAL THERMAL EXPANSION CHART
Please allow this to run-it's-course. Then I can say I tried my best. ALUMINUM / COPPER / STEEL (set screw). This is what I have been yelling about... Metal Temperature Range (oF) Thermal Expans...
Forum Discussion
Good efforts on the education front, Mex!
Yes, tightening load center neutral and ground bar screws should be done periodically. For my 12V distribution buses where a lugged cable is attached to a threaded copper bar, I chose to use two star lock washers and a nut on the fastening bolt. These are in a location where periodic tightening isn't easily accomplished. The ground-> frame junction gets some special treatment, also. Lately, i've used a protective spray formulated for battery terminals on most of these type of fasteners. The spray is an indicator of fastener movement and it also tends to "glue" the pieces as it is somewhat adhesive.
Yes, tightening load center neutral and ground bar screws should be done periodically. For my 12V distribution buses where a lugged cable is attached to a threaded copper bar, I chose to use two star lock washers and a nut on the fastening bolt. These are in a location where periodic tightening isn't easily accomplished. The ground-> frame junction gets some special treatment, also. Lately, i've used a protective spray formulated for battery terminals on most of these type of fasteners. The spray is an indicator of fastener movement and it also tends to "glue" the pieces as it is somewhat adhesive.
