Electrical Requirements |
5/25/05
2-9
For protection of personnel and equipment, use an appropriately rated and protected AC
circuit to supply power to the Arizona T220.
2.2.5
AC Distribution Circuit
The Arizona T220UV requires two dedicated AC distribution circuits, which means a
separate branch circuit with an individual circuit protection device on each circuit.
2.2.6
Grounding
Figure 6 Current Leakage Safety Label
The Arizona T220UV requires an isolated ground, which means an insulated equipment
grounding conductor running with the supply conductors. The ground conductor is
connected to the equipment grounding bus in the main service panel or in a separately
derived system such as a constant voltage transformer, if one is to be used.
Separate, full-size insulated power and ground wires are required on all dedicated circuits.
No chained grounds are permitted.
1
Use of the conduit as the equipment grounding
conductor is not permitted on isolated ground receptacles.
2
1. US customers: refer to National Electrical Code article 250-74, exception # 4.
2. These requirements do not supplant national, state or local codes. Check the applicable
electrical codes to ensure compliance.
!
WARNING
HIGH LEAKAGE CURRENT
EARTH CONNECTION ESSENTIAL
BEFORE CONNECTING SUPPLY.
3010100315
