Effective August 29, 2016

Standard Information
Standard Number:
CSA C22.2 No. 29
Standard Name:
Panelboards and enclosed Panelboards
Standard Edition and Issue Date:
6th Edition Dated January 1, 2015
Date of Previous Revisions to Standard:
5th Edition Revised February 1, 2011
Effective Date of New/Revised Requirements

Effective Date (see Schedule below): August 29, 2016

Impact, Overview, Fees and Action Required

Impact Statement: A review of all Listing Reports is necessary to determine which products comply with new/revised requirements and which products will require re-evaluation. NOTE: Effective immediately, this revised standard will be exclusively used for evaluation of new products unless the Applicant requests in writing that current requirements be used along with their understanding that their listings will be withdrawn on Effective Date noted above, unless the product is found to comply with new/revised requirements.

Overview of Changes(Specific details of new/revised requirements are found in table below)Deviation added to clause 10.2 – limitation on rated power input. Specific details of new/revised requirements are found in table below.

  • Addition of marking of allowable amperage of field installed conductors 
  • Addition of marking where a transfer switch is included. 
  • Addition of finger probe requirements

Schedule: So that shipping of products with Listing Marks will not be interrupted, an approximate schedule has been established to ensure Listing Reports are found compliant by Effective Date:

  • December 28, 2015 = 8 Month Report Review – Intertek will review all Reports. Update if compliance is verified or issue Findings Letter/Quote for any re-evaluations needed
  • February 29, 2016 = 6 Month Quote Cut-off – Quotes returned for necessary re-evaluations
  • July 29, 2016 = 30 Day Warning – Client advised of all non-compliant Reports to be Suspended
  • August 29, 2016 = Effective Date – ATM Suspended for all non-compliant Reports

Fees: An initial review of Listing Report (s) will be covered by a direct billing project and will be invoiced at not more than $1000 per report.

Client Action Required:

Information - To assist our Engineer with review of your Listing Reports, please submit technical information in response to the new/revised paragraphs noted in the attached or explain why these new/revised requirements do not apply to your product (s).

Current Listings Not Active? – Please immediately identify any current Listing Reports or products that are no longer active and should be removed from our records. We will do this at no charge as long as Intertek is notified in writing prior to the review of your reports.

Description of New/Revised Technical Requirements
6.18 New clause added;

The allowable amperage of field installed conductors (the incoming and outgoing power cables) shall be marked permanently on the equipment if the cable rating is different than 75 C, in a location readily visible prior to wiring, to indicate the permitted temperature rating of each conductor, with the following or equivalent wording:

6.24 New clause added;

Where a transfer switch is included with the panelboard as per Clause, the panelboard shall be marked with the following or equivalent:

8Info     Combination service entrance panelboards
8.2InfoConstruction New clause added;

To determine compliance to Clause (b), the size of any openings, or their location, or both, shall prevent the articulated finger probe, illustrated in Figure 7, from contacting uninsulated live parts. Enamelled wire shall be considered an uninsulated live part. New clause added;

The finger probe specified in Clause shall be applied in any possible configuration, and after insertion through the opening, the configuration shall be changed if necessary. New clause added;

The finger probe specified in Clause shall be used only as a measuring instrument to judge the accessibility provided by the opening. It shall not be used as an instrument to judge the strength of a material. The test finger shall be applied with a force not greater than 11 N.
8.2.5 Neutral assemblies 

Additions to existing requirements are underlined below.

The main neutral assembly shall be located in the service box and shall comply with the applicable neutral assembly requirements of CSA C22.2 No. 0.19 except that the specified bonding conductor connection may be omitted and a nonferrous or corrosion resistant steel screw provided for bonding the enclosure to the neutral bar (convertible neutral). The screw shall be not less than

a) No. 10 for equipment rated at 100 A or less;
b) 6.3 mm for equipment rated over 100 A and up to and including 225 A; and
c) 7.9 mm diameter for equipment rated over 225 A and up to and including 400 A.

9InfoCustom-built panelboard assemblies
9.2.3InfoAssemblies with auxiliary equipment 

Additions to existing requirements are underlined below.

Auxiliary equipment in the same enclosure or compartment with a panelboard interior shall be limited to

a) contactors that control panelboard circuits;

b) remote control relays for lighting circuits;

c) pilot lights and pushbutton switches connected to the panelboard circuits;

d) separately mounted disconnection means and overcurrent protection that shall only be provided for mains or subfeed circuits; in panelboards restricted to 42 single-pole branch circuits, a mains disconnecting means and overcurrent protection may be added above or below the panelboard interior, but a subfeed shall not be added if the sum of the branch and subfeed poles exceeds 42; and

e) transfer equipment complying with one of the following:

  1. constructed in compliance with the Canadian standard for automatic transfer switches, C22.2 No. 178.1;
  2. constructed in compliance with the Canadian standard for manually operated generator transfer panels, C22.2 No. 178.2;
  3. constructed such that the circuit breaker or switches are provided with a mechanical means to prevent the load switching from the normal source to the alternate source of supply in one continuous motion; or
iv) constructed such that the circuit breaker or switches are provided with a mechanical interlock that prevents the normal and alternate supply circuit breakers or switches from being closed simultaneously.

CUSTOMERS PLEASE NOTE: This Table and column "Verdict" can be used in determining how your current or future production is or will be in compliance with new/revised requirements.

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