Already a subscriber?
MADCAD.com Free Trial
Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.
If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.
Security check
Please login to your personal account to use this feature.
Please login to your authorized staff account to use this feature.
Are you sure you want to empty the cart?
IEEE Standard for Control Cabinets for Power Transformers, 2020
- IEEE Std C57.148™-2020 Front cover
- Title page
- Important Notices and Disclaimers Concerning IEEE Standards Documents
- Participants
- Introduction
- Contents
- 1. Overview [Go to Page]
- 1.1 Scope
- 1.2 Purpose
- 1.3 Word usage
- 2. Normative references
- 3. Definitions, acronyms, and abbreviations [Go to Page]
- 3.1 Definitions
- 3.2 Acronyms and abbreviations
- 4. Cabinet-ordering specifications
- 5. Standard cabinet construction [Go to Page]
- 5.1 General
- 5.2 Cabinet-housing criteria
- 5.3 Cabinet dimensions
- 5.4 Cabinet construction materials
- 5.5 Compartment styles and welding
- 5.6 General cabinet layout
- 5.7 Rain sheds
- 5.8 Fixed back and side panels
- 5.9 Swing panels
- 5.10 Doors, hardware, and gaskets
- 5.11 Ventilation and drains
- 5.12 Location of conduit entry points
- 5.13 Bottom plate for cable entrance
- 5.14 Finish coatings
- 5.15 External cabinet grounding and grounding terminals
- 5.16 Internal ground connections and ground bus
- 5.17 Lights, door switches, and AC power outlet
- 5.18 Wiring
- 5.19 Circuit protection
- 5.20 Contactors
- 5.21 Heaters
- 5.22 AC power and cooling control circuits
- 6. Numbering and labeling system [Go to Page]
- 6.1 Device numbers
- 6.2 Current transformer numbering
- 6.3 Terminal block, device, and terminal labels
- 6.4 Current transformer circuit terminal block, terminal, test switch, and secondary wiring numbers
- 6.5 Control, alarm, and trip-circuit terminal blocks and terminal numbers
- 6.6 Wire markers
- 7. Drawing requirements [Go to Page]
- 7.1 General
- 7.2 Cabinet layout
- 7.3 Electrical drawings
- 8. Cabinet construction options [Go to Page]
- 8.1 General
- 8.5 Option E: Cooling control switches
- 8.6 Option F: Annunciator
- 8.7 Option G: Automatic transfer switch
- 8.8 Option H: Dead-front cabinet design
- 8.9 Option I: Visible air gap
- 8.10 Option J: Digital communications and telemetry
- Annex A (normative) Figures
- Annex B (informative) Sample checklist [Go to Page]
- B.1 General user specified options
- B.2 Annunciator table and checklist
- Back cover [Go to Page]