Residential Alarm System Basics
2. Residential carbon monoxide detector installation is specified in NFPA
3. Residential control panels are not required to be grounded.
4. Glassbreak detectors are not affected by different types of windows.
5. Control panels should be powered by a
a. dedicated branch circuit.
b. switched branch circuit.
c. 24-hour branch circuit.
d. Any of the above
6. Applications for residential burglar alarm installations are specified by
a. UL 681.
b. National Electrical Code.
c. National Fire Alarm Code.
d. None of the above
e. All of the above
7. To increase standby time for a burglar alarm system you
a. install a larger transformer.
b. install two batteries in series.
c. install two batteries in parallel.
d. do nothing. Manufacturers do not allow power doubling.
8. Digital dialers can transmit on
d. A & B
e. A & C
9. Unlike in a commercial system, control panels are designed to handle the load of any device needed for a residential systems.
10. Which of the following types of devices would be considered backup protection?
b. Motion detectors
c. Digital dialers
d. Keypad with emergency buttons
11. When testing, the first signal sent to a monitoring station should be
a. any burglar alarm signal.
b. a smoke detector activation.
c. a hold up signal.
d. all signals. All signals need to be sent, but it doesn’t matter what order.
12. Verification means
a. the control panel analyzes the event prior to sending a signal.
b. cross zoning of smoke detectors.
c. one device checks the activation of another.
d. the monitoring station places a call back to the premise generating the alarm signal.
13. The purpose of user alarm permits is to
a. generate revenue for the responding authorities.
b. know how many alarm systems are in a jurisdiction.
c. confirm that the alarm is installed by a licensed alarm company.
d. reduce false alarms.
e. All of the above
14. When working on a ladder, the base of the ladder needs to be away from the wall the distance of ____________ the working distance of the ladder.
e. None of the above
15. The device used to check the continuity of an burglar alarm circuit is a(n)
b. clamp meter.
e. swinger tester.
What’s Wrong With This?
A technician was pre-wiring a house for security, audio and other low-voltage systems. When the building inspector arrived, he “red tagged” the installation after looking at how the technician ran the wires. What did the technician do wrong?
3. b — If the control panel has a grounding screw then it is required to be grounded.
5. c — A dedicated circuit is best, but in a residence most outlets will be of the 24-hour type.
7. c — Adding two batteries in parallel doubles the amperage and therefore the standby time.
9. b — Motion detectors help add protection should the perimeter be breached.
10. b — Improperly overloading a control panel is a major cause of false alarms.
11. a — Burglar alarm signals are normally verified, so that will tell you if you aren’t properly on test.
14. c — For every four feet of rise, the ladder should be one foot away from the wall.
Answer to: What's Wrong With This?
The technician failed to properly protect the wires as required in the NEC Section 300.4 from possible physical damage caused by the installation of the sheetrock, other nails, or screws from such things as window treatments.