Canadian Electrical Industry News Week

Public Safety

Pierre McDonald

When it comes to electrical products and public safety we should first start with product standards. Electrical product standards created through the consensus based process as set out by the Standards Council of Canada is the foundation for Public Safety. The 2015 Edition Canadian Electrical Code (CE Code) is the first edition to introduce non-CSA Standards within the Appendix “A” of the Code. While these standards have existed for several years and some even decades, awareness of these standards can now be quantified through this publication and users can now see that actual standards do exist to ensure public safety is served in the use of those products covered by these standards. 

Below is a list of ULC Standards included in the 2015 CE Code. For me the ones that jump out are the ones associated with Fire Alarm Systems. In my mind these are the systems that are synonymous with public safety. While I’m not discounting all other product standards, I just think that everyone can visualize the benefit and contribution to Public Safety that these standards bring without having to give it any real thought.

• CAN/ULC-S304-06 Signal Receiving Centre and Premise Burglar Alarm Control Units

• ULC-S306-03 Intrusion Detection Units

• ULC-S318-96 Power Supplies for Burglar Alarm Systems

• CAN/ULC-S319-05 Electronic Access Control Systems

• CAN/ULC-S524-14 Standard for Installation of Fire Alarm Systems

• CAN/ULC-S525-07 Audible Signal Devices for Fire Alarm Systems, Including Accessories

• CAN/ULC-S526-07 Visible Signal Devices for Fire Alarm Systems, Including Accessories

• CAN/ULC-S527-11 (Amd. 1-14) Control Units for Fire Alarm Systems

• CAN/ULC-S528-05 Manual Stations for Fire Alarm Systems, Including Accessories Systems

• ULC-S529-09 Smoke Detectors for Fire Alarm Systems

• CAN/ULC-S530-M91 (R1999) Standard for Heat Actuated Fire Detectors for Fire Alarm Systems

• CAN/ULC-S531-14 Standard for Smoke Alarms

• CAN/ULC-S533-08 Egress Door Securing and Releasing Devices

• CAN/ULC-S541-07 Speakers for Fire Alarm Systems, Including Accessories

• ULC-S545-02 Standard for Residential Fire Warning Alarm Systems Control Units

• CAN/ULC-S559-13 Standard for Equipment for Signal Receiving Centres & Systems

• ULC-S571 (ULC/ORD-C386-90) Flame Detectors for Fire Alarm Systems

• ULC-S645-93 Standard for Power Roof Ventilators for Commercial and Institutional Kitchen Exhaust Systems

• CAN/ULC-S646-10 Standard for Exhaust Hoods and Related Controls for Commercial and Institutional Kitchens

• CAN/ULC-S2577-13 Standard for Suspended Ceiling Grid Low Voltage Systems and Equipment

• CAN/ULC-S8752-12-AM1 Standard for Organic Light Emitting Diode (OLED) Panels

• CAN/ULC-S8753-13 Standard for Field- Replaceable Light Emitting Diode (LED) Light Engines

• CAN/ULC-S8754-13 Standard for Holders, Bases and Connectors for Solid-State (LED) Light Engines and Arrays

As technology advances within the scope of each and every standard, so must the standards themselves to continuously adjust the bar higher. One of the latest standards to be updated is the CAN/ULC-S531-14, Standard for Smoke Alarms.

The changes to this standard allow Smoke Alarms to conform to changes in technology, end user needs and continued alignment with upcoming changes to the National Codes.  An example of this will be with the requirements for CO detection devices.  With CAN/ULC-S531-14, manufacturers will be able to provide Smoke Alarms that will include CO detection and other multi-criteria devices and be a safe, reliable product that is in conformity with all applicable Standards.

The Scope of CAN/ULC-S531 has been enhanced to specifically define and differentiate on Single & Multiple Station Smoke alarms and provides clarity on what devices are not covered by the Standard (Part 1).  Multi-Criteria Smoke alarms now have specific requirements in such areas as:

• Performance of Single Sensor Components (Sentence 33.2)

• Requirements specific to the gas sensor (Sentence 40.8)

• Electrical Supervision testing (Sentence 37.9)

• Effects from shipping storage (Sentence 55.3)

• Sensitivity & Velocity-sensitivity Tests (Sentences 38.8, 40.2)

• In-Service Reliability for Multi-Criteria Smokes (Part 86)

Further changes/updates or enhancements to the CAN/ULC-S531 Standard are:

In Testing:

• Clarification of the Smouldering smoke test – previously titled Smoke Fire test(Sentence 7.9.2)

• Enhanced test methodology and acceptance criteria through the addition of these in the Annexes (from 3 in 2002 edition to 6 in 2014).  This will provide manufacturers with more detailed acceptance methods and criteria to ensure a more consistent product testing to ensure a more reliable smoke alarm

• Significant Transient testing changes.  The testing has been combined together and provides for better protection from surges with Input/Output Transient Testing and helps to ensure there are no Supply Line adverse effects to the devices.  This will provide a safer and more reliable product that doesn’t fail/or contribute to fire conditions. (Part 59)

• Addition for manufacturers of using an optional Alternate 21 day Corrosion Test (Sentence 58)

For new Sensor or Device technologies:

• Automatic Drift Compensation For Smoke Sensing  - New to this edition and includes compensation parameters and requirements, alerting methods andsensitivity requirements (Part 5 )

• Enhanced requirements for Optional Smoke Sensitivity indications.  This includes expanded functionality, safety requirements and user experience (Part 8)

• Provisions for alarm to indicate end of life with specific signalling requirements(Sentence 37.8)

• Includes reliability prediction requirements for compliance of Wireless Alarms (Part 4)

Overall Updates

• Provides for clarification of clean-ability requirements which includes expanded Servicing and Maintenance Protection and requirements for Field Cleaning (Part 9)

It’s the above changes, made by some very dedicated Committee members, that continuously makes our working and living environments safer. This CAN/ULC-S531 standard is only one of the many pieces required for the “Public Safety“ puzzle, it is plain to see that safety is served by all those involved with Standards work. 


 

Pierre McDonald, CET, is Senior Regulatory Affairs Representative/Répresentant Principal, Affaires Réglementaires, Underwriters Laboratories of Canada Inc. Based in St. Albert, AB, Pierre has been a member of the Canadian Electrical Code Part 1 technical committee as well as several subcommittees including serving as Chair of Sections 6 and 76 and as a member representing regulators on several other CSA committees. Pierre is still active with code development and interpretation.

Other articles by Perre McDonald:

2015 CE Code: Changes on “Approved Electrical Equipment” 

Section 62: Fixed Electric Heating Systems 

Now Available: CAN/ULC Standard on Electric Utility Workplace Electrical Safety

Establishing When the CE Code Becomes Mandatory 

UL Code Link 

CAN/ULC-S576-14, Standard for Mass Notification System Equipment and Accessories 

Canadian CE Code Changes: Section 20 and More 

Meeting National Building Code of Canada Requirements 

Conductor Ampacities and Their Temperature Rating

Codes and Standards - Provincial Legislation and the Administrative Requirements of the CE Code 

Changes to Section 12 Wiring Methods 

Section 4 Conductors — Changes from the Canadian Electrical Code’s 2009, 21st Edition to the 2012, 22nd Edition 

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