Installing the coupled bonding conductor

Figure 27: Typical power and ground for a DC power cabinet

 

 

 

 

5

 

 

 

1

2

 

 

 

 

3

10 AWG

 

4

 

10 AWG

 

 

 

 

 

 

 

 

 

RED

 

 

 

 

 

50A

BLACK

 

 

 

 

 

 

 

circuit

 

6

 

50A

10 AWG

+

+

 

 

Battery

breaker

 

 

 

RED

8

-

-48

 

12

BLACK

 

 

 

 

 

 

 

 

 

-

 

 

VDC

LVD

 

 

 

 

 

50A

 

 

 

 

 

 

 

 

 

 

 

10 AWG

 

 

 

 

 

 

 

 

 

 

DC power

50A

RED

 

7

 

 

 

 

 

from rectifiers

10 AWG

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

BLACK

 

 

 

 

Rectifiers

 

10 AWG

 

10

 

 

 

RTN

 

 

 

 

RED

 

 

 

 

 

 

10 AWG

 

 

 

 

 

 

BLACK

AC

 

 

 

 

 

 

phase

 

 

 

 

Green/Yellow

 

AC

9

 

 

 

Green/Yellow

 

phase

 

 

 

Green/Yellow

 

 

 

 

 

 

-48 V RTN

MCC

-48 V

-48 V RTN

MCC

-48 V

-48 V RTN

MCC

-48 V

11

10 AWG

10 AWG

10 AWG

 

 

 

 

 

6 AWG

 

cydfdc3i KLC 050304

 

 

 

 

 

 

Figure notes:

 

 

1.

Approved Ground

6.

Ground Wire for Battery (+)

2.

1 AWG Ground Wire

7.

Battery Frame Ground

3.

CBC Ground Terminal Bar at the

8.

DC Battery Cabinet

 

MDF (if used)

9.

Main AC Supply (AC Mains)

4.

System Single-point Ground

10.

AC to DC power cabinet

 

Discharge Bar

11.

To Next DC-powered Media Gateway

5.

DC Power Cabinet J58890R or

12.

DC load circuit breakers

 

new DC system

 

 

 

 

 

 

 

 

 

 

Note:

For a high-rise building, connect the CBC to an approved building ground on each floor.

Note:

Below is general information for installing the CBC in all installations having exposed facilities.

Issue 3 January 2008 59

Page 59
Image 59
Avaya 03-300686 manual Typical power and ground for a DC power cabinet