Lucent Technologies Lineage
®
2000 200A Ferroresonant Rectifier J85503B-2
Issue 8 January 1999
Replacing Components and Circuit Modules 8 - 3
General notes for Table 8-A:
•
Slotted machine screws should be the pan-head type.
•
Slotted machine and hex cap screws should be SAE Grade 2
steel or equivalent.
•
Socket cap screws should have 100,000 psi minimum
tensile strength.
•
Locking means is only required for connections subject to
vibration. Belville-type washers or jam nuts are preferred.
•
Ferrous screws and washers should have a corrosion
protective finish.
•
For tapped copper bars less than 1/4-inch thick, use slotted
No. 8, No. 10, or 1/4-inch machine screws to minimize
applicable torque. When larger size screws are required,
provide captive-type steel nuts or reduce torque.
•
Torque recommendations are also suitable for all
non-ferrous fasteners, except aluminum.
•
Where the application permits, use hex cap screws.
Table 8-A: Minimum Torque for Electrical Connections
Screw Size
Torque Values in In-Lb (or Ft-Lb)/Nm
Wire Connections
Head Tightened
Nut Tightened
Slotted
Machine
Hex /Socket
Cap
Slotted
Machine
Hex /Socket
Cap
Slotted
Machine/
Hex Cap
Socket Cap
In-Lb
Nm
In-Lb
Nm
In-Lb
Nm
In-Lb
Nm
In-Lb
Nm
In-Lb
Nm
8-32
15
/2
15
2
19
2
19
2
19
2
23
2.3
10-24
21
2.5
21
2.5
27
3
27
3
27
3
33
4
1/4-20
50
5.5
50
5.5
65
8
65
8
65
8
80
9
5/16-18
-
-
100
11
-
-
135
15
135
15
165
19
3/8-16
-
-
108
20
-
-
240
27
240
27
290
33
7/16-14
-
-
280
32
-
-
385
44
385
44
465
55
1/2-13
-
-
500
56
-
-
585
66
585
66
710
80
5/8-11
-
-
(71)
96
-
-
(97)
131
(97)
131
(118)
160
3/4-10
-
-
(125)
170
-
-
(172)
233
(172)
233
(209)
283
Содержание Lineage 2000 J85503B-2
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Страница 12: ...Lucent Technologies Lineage 2000 200A Ferroresonant Rectifier J85503B 2 2 List of Figures Issue 8 January 1999 ...
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Страница 72: ...Lucent Technologies Lineage 2000 200A Ferroresonant Rectifier J85503B 2 5 22 Installation Issue 8 January 1999 ...