Laboratory Report No.79 - Appendix 1
Insulation Test Results of the following
Insulators from 1934

Insulator
type
No.
per
drawings
below
Qty
Insulator
Description
Date
Exposure commenced

19/4/34

Well wetted by rain

 

26/7/34
_


15/8/34
_
5/9/34
light rain all day
7/9/34
after 2 hrs continuos rain
7/9/34
1hr after cessation of rain, insulators still wet.
19/9/34
during light rain after rainy night.
11/10/34
during heavy rain. 1" rain during night.
30/11/34
during light rain storm of approx. 4 inches
30/4/35
during heavt rain
1
10
Fowler D. normal glaze
15/3/34
Insul.res
M ohms

1500
Insul.res
M ohms

320
Insul.res
M ohms

136
Insul.res
M ohms

720
Insul.res
M ohms

250
Insul.res
M ohms

6000
Insul.res
M ohms

500
Insul.res
M ohms

80
Insul.res
M ohms

46
Insul.res
M ohms

38
2
10
Fowler E. heavy glaze
15/3/34
2300
_
119
820
237
5150
640
70
21
26
3
5
Fowler - extra heavy glaze
6/8/34
_
_
1156
2250
640
6000
1800
160
150
59
4
4
Fowler, unglazed
6/8/34
_
_
322
1800
450
7200
1800
110
14
45
5
6
Fowler, 1934
6/8/34
_
_
1850
>18000
1080
3600
3100
225
62
64
6
9
Australian glass
15/3/34
370
_
134
1250
110
8100
950
22
32
22
7
8
Sunshine cylindrical sketch II
21/6/34
_
1440
161
860
225
4120
550
53
22
29
8
8
Sunshine cylindrical sketch I
21/6/34
_
_
247
1640
370
7200
1200
100
89
56
9
2
Buller
6/8/34
_
_
51
92
23
1200
92
9
15
9
10
5
B.P.O. porcelain
6/8/34
_
_
617
9000
4500
9000
4500
450
300
81
11
6
New Zealand porcelain B.P.O. pattern
6/8/34
_
_
740
>18000
3600
10,800
4300
340
360
112
12
12
Pyrex
6/8/34
_
_
1180
8400
700
8400
3600
33
38
30

Appendix 6