Cabling, Wellhead Box, Wiring

	Wellhead boxes are placed in each box containing borehole accelerometers.		Making the connections in the wellhead box. Wellhead box provides the transition from kevlar cored borehole cable to surface cable. It also provides lightning protection.
	Cables from each box enters the basement of Dana Building through a 4 in. diameter PVC pipe.		A 1 in. wide copper strap connects each wellhead box to ground in order to provide lightning protection.