Installing DC power Page 113 of 456

Table 4

Torque values for bolted connections (Part 2 of 2)

Bolt size

Threads/inch

Torque (in.-lb)

Tension (lb)

 

 

 

 

11 mm

14

400

5110

(7/16 in.)

20

425

5120

 

 

 

 

13 mm (1/2 in.)

13

550

6110

 

20

575

6140

 

 

 

 

16 mm (5/8 in.)

11

920

7350

(see note)

 

 

 

 

 

 

 

19 mm (3/4 in.)

10

1400

9300

(see note)

 

 

 

 

 

 

 

22 mm (7/8 in.)

9

1950

11100

(see note)

 

 

 

 

 

 

 

25 mm (1 in.)

8

2580

12900

(see note)

 

 

 

 

 

 

 

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 two-hole lug to connect one end of a cable to the frame ground plate at the top of the frame for a top-fed system or at the bottom for a bottom-fed system, as shown in Figure 38 on page 115. Apply the appropriate torque (refer to Table 4 for torque values).

Note: Refer to Note 2 and Table 3 on page 112 for the recommended cable size.

If

Then

 

 

The power system shares a frame ground (FG)

go to step 2.

collector cable with other equipment

 

 

 

The power system does not share an FG

go to step 3.

collector cable with other equipment

 

 

 

Communication Server 1000M and Meridian 1 Large System Installation and Commissioning

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