THE OCCURRENCE AND EFFECT OF LOCKOUT 



273 



0.05 0.10 



0.20 0.25 0.30 0.35 0.40 0.45 0.50 



T IN SECONDS 



Fig. 8 — Calculated probability of lockout as a function of total circuit delay. 



Since the duration of lasting and releasing lockouts is not the same, 

 releasing lockouts being of short duration, and since the two were not 

 separately observed, the data are insufficient to determine the duration 

 of releasing lockouts directly. However, tentative calculations indi- 

 cate that approximate results can be obtained by assuming that the 



