Skip to content
CSA Store
  • CSA Group
  • CSA OnDemand™
  • CSA Communities
  • Contact Us
  • Catalogue
    • Browse By Subject Area

      • Electrical
      • Fuels & Transportation
      • Petroleum & Natural Gas
      • Environment & Natural Resources
      • Construction & Infrastructure
      • Mechanical & Industrial Equipment
      • Nuclear
      • Health Care and Well-being
      • Worker & Public Safety
      • Management Systems
    • Browse By Publisher

      • ASME
      • ASTM
      • CSA Group
      • ESA
      • IEC
      • ISO
      • NRC
      • ORNAC
      • TSSA
    • ICS Catalogue

      • Browse by International Classification of Standards (ICS Codes)
  • Subscription
    • Browse By Subject Area

      • Electrical
      • Fuels & Transportation
      • Petroleum & Natural Gas
      • Environment & Natural Resources
      • Construction & Infrastructure
      • Mechanical & Industrial Equipment
      • Nuclear
      • Health Care and Well-being
      • Worker & Public Safety
      • Management Systems
    • CSA Subscriptions

      • Overview
      • Collections
    • ICS Catalogue

      • Browse by International Classification of Standards (ICS Codes)
  • Services
Cart Icon0
×
Login / Register
English / CAD

Language

en

fr

Currency

CAD

USD

  • CSA Group
  • CSA OnDemand™
  • CSA Communities
  • Contact Us
Wishlist

Catalogue

  • Browse By Subject Area

    • Electrical
    • Fuels & Transportation
    • Petroleum & Natural Gas
    • Environment & Natural Resources
    • Construction & Infrastructure
    • Mechanical & Industrial Equipment
    • Nuclear
    • Health Care and Well-being
    • Worker & Public Safety
    • Management Systems
  • Browse By Publisher

    • ASME
    • ASTM
    • CSA Group
    • ESA
    • IEC
    • ISO
    • NRC
    • ORNAC
    • TSSA
  • ICS Catalogue

    • Browse by International Classification of Standards (ICS Codes)

Subscription

  • Browse By Subject Area

    • Electrical
    • Fuels & Transportation
    • Petroleum & Natural Gas
    • Environment & Natural Resources
    • Construction & Infrastructure
    • Mechanical & Industrial Equipment
    • Nuclear
    • Health Care and Well-being
    • Worker & Public Safety
    • Management Systems
  • CSA Subscriptions

    • Overview
    • Collections
  • ICS Catalogue

    • Browse by International Classification of Standards (ICS Codes)

Services

Menu toggle Icon
Login / Register
English / CAD

Language

en

fr

Currency

CAD

USD

Wishlist Cart (
)

Search Section

    • Home
    • CSA Group
    • Electrical
    • Electrical Equipment Safety Standards
    • Electrical Engineering Practice
    • CAN/CSA-C227.4-06 (R2017)

    Codes & Standards - Purchase

    CAN/CSA-C227.4-06 (R2017)

    Three-Phase, Pad-Mounted Distribution Transformers with Separable Insulated High-Voltage Connectors
    SKU: 2417961 Published by CSA Group Publication Year 2006 Reaffirmed in 2017 74 pages Withdrawn

    Product Details

    • Preface/Scope
    • Editions
    • Updates
    Preface

    This is the second edition of CSA C227.4, Three-phase, pad-mounted distribution transformers with separable insulated high-voltage connectors. It supersedes the first edition published in 1978. 

    Scope

    1.1 
    This Standard specifies the requirements for three-phase, pad-mounted distribution transformers, consisting of a transformer and a cable entrance compartment with provision for separable insulated high-voltage connectors, intended primarily for operation by electric utilities on three-phase underground distribution systems having primary voltages as shown in Clause 4.6.

    Note: The operation of transformers complying with this Standard by other than an electric utility may be subject to additional requirements by the electrical inspection authority having jurisdiction. 

    1.2 
    This Standard applies to three-phase, 60 Hz, pad-mounted, liquid-filled distribution transformers, rated at 3000 kV.A or below, with an insulation class of 18 kV or less, and with separable insulated high-voltage connectors. The transformers are suitable for mounting outdoors on pads without additional protective enclosures. 

    1.3 
    This Standard includes voltage ratings, kV.A ratings, certain mechanical characteristics, and test procedures. The Standard also includes the following performance characteristics: energy efficiency (in accordance with CAN/CSA-C802.1), temperature rise, loading capabilities, audible sound level, and radio influence voltage (RIV). 

    1.4 
    When this equipment is intended for operation by other than an electric utility, it shall be the purchaser's responsibility to ensure that the unit meets the requirements of the appropriate electrical inspection authority. 

    1.5 
    This Standard allows for the replacement of a dead-front, pad-mounted unit by another of the same basic physical size from a different manufacturer, without modifications to cables or pad. This Standard covers terminal arrangements for both radial and loop-feed systems, including certain minimum dimensions and certain specific dimensions. 

    1.6 
    In CSA Standards, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; may is used to express an option or that which is permissible within the limits of the standard; and can is used to express possibility or capability.

    Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

    Notes to tables and figures are considered part of the table or figure and may be written as requirements.

    Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.
    items 1 - of 1 result(s)
    View 20 | View 100

    C227.4-M1978 (R2005)

    Three-Phase, Dead-Front, Pad-Mounted Distribution Transformers

    Withdrawn

    An update to this product is available.


    To receive notifications when an amendment, new edition or update is available to your standard no matter how you purchased it, please register on the Standards Update Service. After registering, enter the List ID for the relevant standard. The List ID can be found in the “CSA Standards Update” section within the first few pages of the standard you’ve purchased. Once notified, you can then update your standard accordingly.


    PDF Format Purchased from the CSA Store

    If you have purchased or subscribed to a standard from the CSA Store in PDF format, login to your CSA OnDemandTM account to access the updated PDF.


    Paper Format Purchased or Purchased from Reseller

    If you have purchased a paper copy of the standard from the CSA Store or purchased a standard in paper or PDF format from one of our resellers, login to the Standards Update Service to download the updates in PDF format. 


    eBook Format Purchased

    If you have purchased a standard in eBook format, login to the CSA Reader App to download the updated version of the standard. 

    copyright imgRequest Copyright Permissions

    Buy

    Language

    Radio input
    Radio input

    Format

    Radio input
    Radio input
    • FAQs
    • Contact Us
    • Email Product

    GST REG No R119441681
    QST REG No R1006017360

    Compare Formats

    Determine the subscription format that is right for you.

    Features CSA AdvantageTM CSA OnDemandTM
    Offline access
    Full-text search
    Create highlights and personal notes
    Newest editions added automatically
    Includes all supported languages and archive versions
    My Files - create customized files by adding multiple clauses, tables or figures from the standard into your own personal File for quick reference
    Toggle between your files and the full standard to maintain context
    Instantly preview cross referenced material within the book
    Export personal notes to Excel
    Transfer notes and highlights when updates are available
    Adobe Reader PDF and browser compatible for iOS and Android
    Web, Android, iOS Compatible

    Follow Us On Social Media

    Get Our Newsletter

    Get CSA Newsletter

    • About CSA Store
    • Subscription
    • Services
    • Catalogue
    • FAQ
    • Return Policy
    • FULFILLMENT DETAILS
    • EBOOK SUPPORT
    • Product Updates
    • Contact Us
    • CSA GROUP
    • CSA COMMUNITIES
    • CSA Update Service
    • About CSA Store
    • Subscription
    • Services
    • Catalogue
    • FAQ
    • Return Policy
    • FULFILLMENT DETAILS
    • EBOOK SUPPORT
    • Product Updates
    • Contact Us
    • CSA GROUP
    • CSA COMMUNITIES
    • CSA Update Service

    • General Terms and Conditions
    • Privacy Policy
    • Accessibility
    © 2022 Canadian Standards Association. All rights reserved
    logo close
    Privacy Preference Centre

    Please manage your cookie choices by switching the consent toggles on or off under the Purposes below.

    You may change your preference at any time as described in our Cookie Policy

    • Cookie Settings
    • List of Cookies
    close
      Cookies on CSA Group

      We use Cookies to create a secure and effective website experience for our customers. For more information about Cookies and how you can disable Cookies, visit our privacy policy page. Learn More

      Free Login/Registration Required

      View Access for this document is only available for viewers in Canada.

      A free user account is required to view this document.

      Login or Register