A.  LIGHTING  AND  POWER 


Time 

Load 

=  Per  cent. 

TimeX 
load 

I 

II 

Losses 

Time  X 
losses 

Losses 

Time  X 
losses 

2hr. 

IH 

125 

250 

4.10 

8.20 

3.54 

7.08 

2hr. 

% 

75 

150 

2.11 

4.22 

2.55 

5.10 

6hr. 

H 

50 

300 

1.50 

9.00 

2.25 

13.50 

14  hr. 

Y20 

5 

S  = 

70 

1.00 

14.00 

2.00 

28.00 

770 

35.42 

53.68 

Input                            805  .  42                    823  .  68 

Per  cent,  loss                  4.41                        6.51 

Per  cent,  efficiency       95  .59                      93  .  49