SOME OF THE MOST COMMON TESTING MISTAKES MADE BY TECHNICIANS PERFORMING VERIFICATIONS TO CAN/ULC 537-04 The reason I know some of them is because I have.

Slides:



Advertisements
Similar presentations
72V - Recoil, Recoil IS, & Instinct New Vehicle Delivery Tips
Advertisements

Welcome to the Manage Orders lesson for the North Carolina Immunization Branch. Contents: Placing a State Supplied Order Accepting a State Supplied Order.
Denver Fire Alarm Test FUNDAMENTAL, POWER SUPPLIES, CIRCUITS, INSPECTIONS, TESTING and MAINTENANCE.
It all started simple…. One Alternator One Battery One Starter Motor.
John Ogilvie High School - CfE Physics
SECTION 11 LEVEL B SUIT OUT. SECTION 12 AIR MONITORING.
DOPPLER TROUBLE SHOOTING 2013 WEBINAR WEBINAR TECH SUPPORT.
Brio 2000 / Brio 2000-M E-Learning Service Manual Rev. 0.0.
DC Circuits Ch. 28 These circuit elements and many others can be combined to produce a limitless variety of useful devices wire open switch closed switch.
© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois.
A/C Generator Systems.
11/2001VHS Auto1 Point type Ignition Flow Chart Auto 2 Trouble Shooting.
©LRI ULC S VERIFICATION OF FIRE ALARM SYSTEMS PART # 6 SYSTEM MODIFICATIONS Presentation for CFAA Annual Seminar May 5, 2010.
Tool removed during cycle Fault #2 Conditions for setting Tool cocked prox switch goes open during cycle AND force on load cell drops below limit in fault.
Landing and Taxi Lights Anti-collision Lights Navigation Lights Cockpit and Cabin Lights Instrument Panel Lights Click on a System Link to Start.
(Adapted from:D.T. Hall:Practical Marine Electrical Knowledge)
Alarming The Insurance Company The perspective from the Risk Insurance Industry; The most common problems we see, and recommendations to overcome them.
ELECRICAL CIRCUITS.
Embedded Programming and Robotics Lesson 1 Basic Electricity and Electronics Transistor Basics Lesson 1 -- Basic Electricity1.
Charging System Service
VAT: Volt Ampere Tester
Chapter 19 Charging Systems.
WELCOME DBI & SFFD Meet the Pros October 11, 2007.
Chapter 14: Inspection and Maintenance
Electrical Electricity Fuses Relays Solenoids Electrical Testing
Freedom Combi Inverter
+ -. Methode Connector  This is the standard USGS connection for the DCP.  Some manufacturers do not recommend using a methode connector. However, we.
Inverters November 2007, Alex Righolt. Overview A&A Computers sell and install inverter systems as an alternative to UPS-es. Inverters are easily scaleable;
Validation and Verification
Power Supplies And Batteries ARRL Book Section 3.3.
Charging System Service
Forging new generations of engineers. Digital Multimeter.
© 2012 Ted “Smitty” Smith  This slide show contains multiple timed questions. All questions can be answered using the International Fire Code and the.
1 Computer Power Supply Amateur Radio Conversion For Cheap +12 vdc Power March 17, 2003.
UPS Battery Battery Sizing
1 INTRUSION ALARM TECHNOLOGY POWER SUPPLIES. 2 INTRUSION ALARM TECHNOLOGY Security systems shall have a primary power source and a secondary power source.
INTRODUCTION TO MEASUREMENT
Circuit Basics Direct Current (DC) Circuits 1.5 V + – wire open switch closed switch 2-way switch ideal battery capacitor resistor 47  F 4.7 k  These.
Presented to: By: Date: Federal Aviation Administration Airworthiness Preventive Maintenance R1.
What can a Non Load Break Switch do?. Interesting question A switch is used to isolate the circuit Can a switch close into an energized circuit, a circuit.
1 Making Part? Eliminating The Confusion! By Don Dodge The Grass Roots Program.
Electronics Series Resistive Circuits 1 Copyright © Texas Education Agency, All rights reserved.
C++ Basics C++ is a high-level, general purpose, object-oriented programming language.
THE PERFECT LIFTGATE BATTERY CHARGING SYSTEM FOR RYDER
Station Backup Power & Solar Powering your station.
PREVENTIVE COMPUTER MAINTENANCE. Preventive Maintenance regular and systematic inspection, cleaning, and replacement of worn parts, materials, and systems.
Fermilab AD E/E Support Department Fermilab’s Experience in Applying OSHA and NFPA 70E Requirements in Accelerator Power Supply Systems NFPA 70E Standard.
Tool Removed During Cycle Fault #2 Conditions for Setting Tool cocked prox switch goes open during cycle AND force on load cell drops below 5 lbs. Active.
Electricity Bingo. This remains constant throughout a series circuit.
It all started simple…. One Alternator One Battery One Starter Motor.
Electrical Testers Basic test equipment used in today’s shops may include an analog type meter, a VAT (Volt-Amp-Tester), DMM (Digital Multimeter),
MARCH Right Now: Get Electricity notes Agenda: 1- Notes: Electricity 2- Circuit Drawing Objectives: I CAN…Describe how simple circuits are associated.
Fire Alarm Verification CAN/ULC-S561-03
Inspection and test data analysis
E2 Motors and Motor Starting
Tool removed during cycle Fault #2
NICET Fire Alarm Tech Level 1 Practice Test # 6
Chapter 31 Battery Systems.
Emergency Lighting Design, Inspection and Maintenance Requirements
NICET Fire Alarm Tech Level 1 Practice Test # 2
Emergency Electrical Power Supply for Buildings
HOUSING CONNECTIONS TRAINING 01 Initiate & Enter New Application
Fire Alarm Tech Practice Test # 16 NICET
BATTERY State of Charge SC1 By Vance Bloom.
Electrical components and systems
FIRE ALARM DRILL 26 © Ted Smith 2017.
Presentation transcript:

SOME OF THE MOST COMMON TESTING MISTAKES MADE BY TECHNICIANS PERFORMING VERIFICATIONS TO CAN/ULC The reason I know some of them is because I have made them myself.

Why? Because nobodys perfect including Because nobodys perfect including The People who write the standard The People who write the standard The Engineers who design the systems The Engineers who design the systems The Manufacturers who build them The Manufacturers who build them

The Who Creates Standards People involved in Fire Protection such as: –Manufacturers Reps –Engineers and Consultants –Government Agencies –AHJs – People in this room like you and me. Remember nobodys perfect!

Sometimes its hard to answer the Questions APPENDIX C (INFORMATIVE)-FIRE ALARM SYSTEM VERIFICATION REPORTS Reference: Subsection 3.1-Note, Clause 3.2.1,3.2.2 YES =Tested Correctly No =Did not test correctly N/A =Not applicable A System provides single stage operation Yes No B System provides two stage operation Yes No If you answer No to either of the questions you are indicating that system did test correctly.

Note: Many people reviewing reports are looking for any No box that is checked Sometimes its hard to answer the Questions A System provides single stage operation Yes No N/A B System provides two stage operation Yes No N/A My solution is add the N/A box. Remember the appendix is a sample form. You can modify it!

Sometimes the tests require special manufacturers information! Voice Communication Tests K Upon failure of one amplifier,system automatically transfers to backup amplifier(s) It may be possible on some systems to exchange an amplifier with a defective one. Sometimes it is possible to perform this test by removing a fuse or disconnecting power.

Sometimes the tests require special manufacturers information! Voice Communication Tests K Upon failure of one amplifier,system automatically transfers to backup amplifier(s) At least one system manufacturer has a test switch for this test However for some systems this is just not possible due to design without major work!

When in doubt contact the manufacture. If they do not have a procedure to perform this test then document this on the report. Sometimes the tests require special manufacture information!

Sometimes you need to know why your doing the test! Battery Charging Each battery shall be inspected and tested to confirm operability, including the following functions, as applicable… F Charging current; Why do we this test? To make sure the battery charger is working!!

Battery Charging The problem is in most cases the battery charging current is directly related to the battery condition. If you simply measure the current when the battery is fully charged the current reading may be only a few milliamps. In many cases this does not prove anything!

Battery Charging However if you measure the battery charging current after you perform the 24hr load test (or accelerated test), then you will get a better indication that the charger is operating correctly. Remember you only get out what you put in! A discharged 20 amp hr battery may require over one amp in order for it to recharge and meet ULC standards.

So whats the correct Measurement Each battery shall be inspected and tested to confirm operability, including the following functions, as applicable… D Voltage and current with main power supply power off and the fire alarm system in full load condition;

So whats the correct Measurement Why do we test this? We need this measurement to calculate the required battery capacity requirements in Q. or to calculate the size of the loading resistor if a silent or accelerated load test is to be performed.(4.4.4 P)

So whats the correct Measurement This was fairly simple years ago when the alarm signal was a constant. When the alarm signal was constant the alarm current was also constant. This allowed us to give an accurate calculation.

So whats the correct Measurement Today the problem is the alarm signals will be pulsing at a temporal rate, which mean the current will be pulsing at a temporal rate as well.

So whats the correct Measurement So whats the correct reading? The peak current? The average current? If its the average current how you do measure it? Most meters will not give an accurate reading. –Give a good guess? Not exactly professional! –Calculate it from a formula? Every system would be slightly different. –Use an oscilloscope Possible but not very practical

So whats the correct Measurement So whats the answer? If you use the peak current you know it will meet the requirements. Yes it will oversize the batteries but that is not all bad. We know the battery capacity will reduced as they age, so being on the high side will help compensate.

So whats the correct Measurement Problem What if the batteries installed in the system which you are verifying do not meet the calculated requirements using the peak current value. I think the only way to know 100 percent for sure if they are acceptable is to perform the 24 hour test as described in the standard and document the results.

Going a little to far Each fire alarm system shall be inspected and tested to confirm operability and that the installation is in accordance with the design and CAN/ULC-S524, Standard for the installation of Fire Alarm Systems. Note: It does not say building code! It says the design. Technicians verifying systems that do not have all the documentation sometimes will make assumptions based on code requirements and common practice not realizing additional design requirement.

Going a little to far Examples: Smoke control operation Two stage operation Zoning requirements Circuit design Class A or B

Sometimes it takes a little more Work! Each manual pull station shall be inspected and tested to confirm operability, as applicable; The purpose of the test is make sure the pull station operates properly. In many cases the station has a glass or plastic rod which will break, so the easily way to test is to open the station to operate the switch. This however proves the switch works but not the station. I have personally seen many stations over the years in which the mechanical activation of the switch has been faulty from bent switch levers, broken mechanical assembles, even nails installed instead of glass rods.

The Biggest Mistake Not having the standard for both Verification and Installation close by for reference. Guessing is not acceptable! When in doubt look it up! Personal Note: Even after attending some of the ULC working group meetings which created these standards and being in the field for over 30 years, I regularly have to look up items.

You cannot do good work if your tools are not calibrated Amp meters Sound level meter Smoke sensitivity meters Air velocity meters

Final Thoughts for Verifiers Documentation may seem to be a lot of extra work, however the more comments you can provide, the more credibility the report will have. Always remember that it is your signature that is going on the document, so when in doubt always clarify in the notes any test or inspect items which are not a definite yes or no answer.

Hope This Presentation will Assists You to Perform Better Verifications