Disclaimer

Horizon Utilities Corporation has issued these Standard Construction Practice Drawings and Bills of Materials for its sole purposes only.

Horizon Utilities Corporation shall not be liable in any manner whatsoever to any external party, corporation or organization for damages, injuries or cost resulting from the use of the material and information contained here within.

The information contained here within is not to be reproduced, sold or distributed in any manner without the prior written consent of Horizon Utilities Corporation.

These Design Standards are for information purposes only. A Service Layout Form (SLF) shall be taken out for all modifications to existing services and new services.

To request a Service Layout Form (SLF):
Call: 1-866-466-458-1236, Ext. 34820
Fax:  ​Hamilton: 905-522-8373
St.Catharines: 905-323-3461
E-mail:connections@horizonutilities.com

Everything you need to know before you start a projectEverything you need to know before you start a project

Understanding CCRACapital Cost Recovery Agreement (CCRA) brochure

Clearance Requirements from Horizon Utilities’ Live Conductors

  • 3-103 - Clearances For Conductors Over Swimming Pools
  • 3-105 - Minimum Conductor Clearances From Buildings, Permanent Structures Or Building Apparatus
  • 3-130 - Luminaire Mounting Height on Existing Hydro Distribution
  • 3U-100 - Clearances for Underground Conductors from Pools

Horizon Standard Metering Requirements

  • Metering Guide - General

  • Damaged Service Stacks & Repairs

    • For information on repair, follow this link
  • Residential metering

    • Standards
      • 25-100 – Typical connections at service mast residential only
      • 25U-202.1 – Underground secondary service residential subdivision 200A service
      • 25U-202.2 – Underground secondary service residential subdivision 400A service
      • 27-01A.1 - Residential secondary service mast detail (single story)
      • 27-01A.2 - Residential secondary service mast detail (multi story)
      • 27-01B - Residential secondary service 200A, meter base
      • 27-01C - Multiple meters installation – mounting details (residential, condominium only)
      • 27-01D - Residential secondary service installation – 200A, recessed meter base
      • 27-02 - Service entrance and meter installation 200A–120/208V or 600/347V 3-phase 4-wire (overhead supply)
      • 27-04 - Service entrance and meter installation 200A – 120/208V or 600/347V 3-phase 4-wire (underground supply)
      • 27-05 - Residential secondary service installation (400A meter base)
    • Generators
    • Microfit installations
      • 10kW or under
        • 28-25 - Micro-fit parallel connection two meter bases residential
        • 28-30 - Micro-fit parallel connection for existing 1-ph, 400A
    • Multilevel Combo (residential & commercial)
      • 27-54 – Metering installation past customer owned dry type transformer – guideline
      • 27-55 & 27-57 Switchboard - Metering installation (120/208V and 347/600V) for Customer owned primary voltage transformer – guideline
      • 27-56 & 27-58 Switchboard  - Metering installation (120/208V and 347/600V) for Horizon owned primary voltage transformer – guideline
  • Commercial metering

    (general service below 50kW, general service above 50kW and large user)
    • Secondary metering
      • 27-02 - Service entrance and meter installation 200A–120/208V or 600/347V 3-phase 4-wire (overhead supply)
      • 27-04 - Service entrance and meter installation 200A – 120/208V or 600/347V 3-phase 4-wire (underground supply)
      • 27-06 - Metering installation 400A – 120/240V 1-phase
      • 27-07 - Multiple service metering installation, commercial 400A 1-ph or 600A 3-ph
      • 27-08 - Transformer-type central metering service, 120/240V and up
      • 27-09 - Transformer-type meter installation, 3-ph (400A-600A)
      • 27-11 Switchboard - Transformer-type switchboard metering – 3 phase 800A-4000A
      • 27-13 Switchboard - Multiple service switchboard / meter-centre
      • 27-14A - Secondary service mast detail [for temporary 1-ph services – 200A or less (#2)]
    • Primary metering
    • FIT, MSP & Wholesale metering
      • 28-20 - Micro-fit parallel connection polyphase, commercial
      • 28-50 - Generator metering small or midsize capacity > 10kw 
    • Customer owned transformers
    • Multilevel Combo (commercial & residential)
      • 27-54 – Metering installation past customer owned dry type transformer – guideline
      • 27-55 & 27-57 Switchboard - Metering installation (120/208V and 347/600V) for Customer owned primary voltage transformer – guideline
      • 27-56 & 27-58 Switchboard - Metering installation (120/208V and 347/600V) for Horizon owned primary voltage transformer – guideline
    • Delta to Wye Conversion
      • 27-51 - Single meter conversion from existing delta service to solidly grounded wye service
      • 27-52 - Multi meter conversion from existing delta service to solidly grounded wye service
      • 27-53 - Metering installation 600V, 7-jaw meterbase for delta and wye services

Suite Metering Requirements

This page was last updated on: March 4, 2016; For additional content information:
Call: 905-522-6611 Ext. 34774 or Ext. 34598
Email: jesse.ilijeski@horizonutilities.com or robert.mcalpine@horizonutilities.com