Pravel, Hewitt, Kimball & Krieger
Voltage rotation indicator mounting apparatus
 A voltage rotation indicator for testing the phase sequence of live multi-phase electrical power is mounted within a housing. The housing is provided with structure for removably mounting the indicator on a meter box or can during voltage rotation testing. Contact plungers extend from the housing and contact meter jaw test points in the meter box during testing. Field personnel are thus not required to insert their hands into the meter box to attach test clips to the live circuit. 
Houston Industries Incorporated
Robert R.
Gonzales