Page 28 of 536
Chapter 3 — System and site requirements
553-3121-210
Standard 3.0
January 1999
Figure 3
Isolated Ground Bus
120V
A
B
C
15A
15A
15A
Isolated
Neutral Bus
Isolated
Ground Bus
A
B
208V
120V
120V
C
Note 2
Note 1
Cadwelded
or (2) ALCU
Clamps
Dedicated Transformer
Meridian1 Service Panel
208V
Cabinet
Ground Lug
Note 1 & 7
Note 4
Note 3 & 4
Notes:
1. Ground conductor should be the same size
as the largest conductor run between the
transformer and the AC panel.
2. Transformer (dedicated for Meridian and
Telco Interface Equip) can be either a
single phase 120/240 or a three phase
208Y/120 and must have a system ground
conductor and should be120/240 or 480 to
208Y/120.
3. Receptacles: All 120V service drops in the
Equipment room must have IG type
receptacles. Each circuit must have
individual hot, neutral and ground
conductors.
Xo
G
N
Isolated
Ground
Receptacle
Must have conduit
Note 6
Note 6
Note 5
4. NEMA numbers for ground receptacles are:
208/240 @ 15 A IG-6-15
120 @ 15 A IG-5-15
5. Dedicated service panel must be located in
the equipment room.
6. Required by Canadian Electrical Code: other
electrical codes may not.
7. Bonding conductor is enclosed in same
raceway/conduit cable containing conductors
as per CEC 10-906(9).
8. A "Dirty Ground Bus" is not a mandatory
requirement in the Meridian AC Service
Panel. If this type of bus is installed,
connections must be limited to non-Meridian1
auxiliary equipment.
Содержание Meridian Meridian 1
Страница 3: ...553 3121 210 Standard 3 0 January 1999 ...
Страница 17: ...xiv Contents 553 3121 210 Standard 3 0 January 1999 ...
Страница 89: ...Page 70 of 536 Chapter 6 Bracing cabinets against earthquakes 553 3121 210 Standard 3 0 January 1999 ...
Страница 97: ...Page 78 of 536 Chapter 8 Installing a new system 553 3121 210 Standard 3 0 January 1999 ...
Страница 107: ...Page 88 of 536 Chapter 10 Installing the system ground 553 3121 210 Standard 3 0 January 1999 ...
Страница 113: ...Page 94 of 536 Chapter 11 Installing the power supply 553 3121 210 Standard 3 0 January 1999 ...
Страница 125: ...Page 106 of 536 Chapter 12 Adding an expansion cabinet 553 3121 210 Standard 3 0 January 1999 ...
Страница 139: ...Page 120 of 536 Chapter 13 Installing the circuit cards 553 3121 210 Standard 3 0 January 1999 ...
Страница 157: ...Page 138 of 536 Chapter 15 Installing and connecting SDI and Ethernet ports 553 3121 210 Standard 3 0 January 1999 ...
Страница 175: ...Page 156 of 536 Chapter 16 Starting up and testing the system 553 3121 210 Standard 3 0 January 1999 ...
Страница 209: ...Page 190 of 536 Chapter 18 Connecting the trunks 553 3121 210 Standard 3 0 January 1999 ...
Страница 323: ...Page 304 of 536 Chapter 21 Installing Hospitality 553 3121 210 Standard 3 0 January 1999 ...
Страница 419: ...Page 400 of 536 Chapter 23 Pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 455: ...Page 436 of 536 Chapter 24 Changing pre programmed data 553 3121 210 Standard 3 0 January 1999 ...
Страница 555: ...Page 536 of 536 Chapter 25 Fault locating and clearing 553 3121 210 Standard 3 0 January 1999 ...