Lucent Technologies H569-420, Руководство по эксплуатации продукта

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Lucent Technologies ECS Minicell Battery Plant H569-420
5 - 4 Installation Issue 5 February 1997
Notes
1. Slotted machine screws should be pan-head type.
2. Slotted machine and hex cap screws should be SAE Grade
2 steel or equivalent.
3. Socket cap screws should have 100,000 psi minimum
tensile strength.
4. Steel flat washers should be furnished under heads of
socket cap screws.
5. Ferrous screws and washers should have a corrosion
protective finish.
6. Locking means is required only for connections subject to
vibration. Belleville-type washers or jam nuts are the
preferred means.
7. For less than 1/4 inch thick tapped copper bars, use 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 torques.
8. Torque recommendations are also suitable for all
non-ferrous fasteners, except aluminum.
9. Where application permits, hex cap screws should be used.
Table 5-A: Minimum Torque for All Electrical Connections
Screw Size
Torque - lb-in or lb-ft
Wire Connections Head Tightened Nut Tightened
Slotted
Machine
Hex or
Socket Cap
Slotted
Machine
Hex or
Socket Cap
Slotted
Machine
Hex or
Socket Cap
8-32 15 15 19 19 19 23
10-24 21 21 27 27 27 33
1/4-20 50 50 65 65 65 80
5/16-18 - 100 - 135 135 165
3/8-16 - 180 - 240 240 290
7/16-14 - 280 - 385 385 465
1/2-13 - 500 - 585 585 710
5/8-11 - (71) - (97) (97) (118)
3/4-10 - (125) - (172) (172) (209)