Electrical

Card Set Information

Author:
rlw0008
ID:
134756
Filename:
Electrical
Updated:
2012-02-12 20:28:41
Tags:
Electrical
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Description:
This will help you understand the electrical drawings.
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  1. What is the sequence of the mechanical equipment, starting with the Oncor PMH
    • Existing PMH
    • New PMH
    • New ATO
    • New Vista Gear
    • Net Meter
    • Medium Voltage Switch Gear
  2. Describe the DuctBank between the Existing PMH and the New PMH
    • 4' Below Grade
    • 2 6" Power and 2 6" spare condutis
    • Each spaced 12 " apart
    • 6 inches above and below conduit
    • #2 ground in donduit
  3. Describe the Ductbank between the New PHM and ATO gear
    • 3 Power, 3 spare, all 6"
    • 3, #2 Grounds
    • Spaced 12" apart
    • 6 " below and above pipe
    • 4' belwo grade
  4. Describe the duct bank between the ATO and Vista Gear
    • 4' below grade
    • 4 power, 4 spare, all 6"
    • 12" between conduits
    • 4 ground wires
    • gravel underneath
  5. Describe duct bank between vista gear and new Oncor meter
    • 3, 6" power, 3, 6" spare
    • 3 ground wires
    • 12" spacing between each conduit
    • 6" coverage top and bottom
  6. Describe the ductbank between the new Oncor meter and the MVSG
    • 4' depth
    • 1 6" power, 1 6" spare
    • 12" coverage
    • 1, #2 ground
    • Yellow tape for all
  7. What is the size of the MVSG
    27 kVa, 1200A
  8. Describe the mounting system for the MVSG
    4" Concrete base, reinforced, channel iron steel embeds, extend pad maximum of 2" outside MVSG dimensions
  9. MSB
    • Main Switchboard
    • Mounded on a 4" concrete base.
    • Dowel rods to connect base to concrete floor
    • -Dowels should be 18" o.c.
  10. BMS
    CB
    EPO
    MDF
    • Building Management System
    • Circuit Breaker
    • Emergency Power off
    • Main Distribution Frame
  11. PDU
    TVSS
    UPS
    • Power Distribution Unit
    • Transient Voltage Surge Supression
    • Uninteruptable Power Supply

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