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Installing DC power Page 113 of 456
Table 4
Torque values for bolted connections (Part 2 of 2)
Bolt size | Threads/inch | Torque | Tension (lb) |
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11 mm | 14 | 400 | 5110 |
(7/16 in.) | 20 | 425 | 5120 |
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13 mm (1/2 in.) | 13 | 550 | 6110 |
| 20 | 575 | 6140 |
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16 mm (5/8 in.) | 11 | 920 | 7350 |
(see note) |
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19 mm (3/4 in.) | 10 | 1400 | 9300 |
(see note) |
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22 mm (7/8 in.) | 9 | 1950 | 11100 |
(see note) |
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25 mm (1 in.) | 8 | 2580 | 12900 |
(see note) |
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Note: Bolt sizes 6 mm to 25 mm (5/8 in. to 1 in.) apply to Large Candeo only.
Procedure 7
Installing and connecting the power plant frame ground leads
1Use the appropriate
Note: Refer to Note 2 and Table 3 on page 112 for the recommended cable size.
If | Then |
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The power system shares a frame ground (FG) | go to step 2. |
collector cable with other equipment |
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The power system does not share an FG | go to step 3. |
collector cable with other equipment |
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Communication Server 1000M and Meridian 1 Large System Installation and Commissioning