Wires for Burglar Alarms

Author: Ari Erenthal, Published on Jan 26, 2017

Most commercial and many higher end residential alarm systems rely on wired sensors. These require installers to run wires between the sensor and a control panel. In the following tutorial, we examine wire selection criteria, including

  • Resistance
  • Material
  • Gauge
  • Insulators
  • Ratings

**** ********** *** **** ****** *** *********** ***** ******* **** on ***** *******. ***** ******* ********** ** *** ***** ******* the ****** *** * ******* *****. ** *** ********* ********, we ******* **** ********* ********, *********

  • **********
  • ********
  • *****
  • **********
  • *******

[***************]

***********

*** ***** ******** ***** ** ********,****, ***************************, ****** **** ***** ** ********* ******:

  • * ********* ** * ********* ******* ***** *********** ******, ********* meaning *** ***** *** **** ** **** **
  • * **** ** * ********* **** ** *****, ********* ******, though ********* ********, *** ******** **** * ****** (********** ***** are ********* **** **** ** ********** ************)
  • * ***** ** * *** ** ***** ***** ******** ***** a ****** ******

****** *** ***** ******** ** ** ***** ***** (** ***, 18 ***, ** ***, ***.) *** ****** ** ********** (***** a *****), **** ** **/*, **/*, ***.

***** ******* ***** * **** ** *****

*** ******* **** *** ******** ** ****** ** ****: ****** two ***** ***, *** ******** **** *** *** ******** ****. No ****, *** ** ****.

* ******* ** *** **** *********** ***** ******* *** ******** terminal ** *** ***** *****, *** ** *** ****, ***** is *** ******, *** **** ** *** ***** *****, ****** a *** ******. *********, ***** ******* ******** *** *****, *** to ***** *** ******** **** ** *** ******* **** *** panel *** ** *** ******, *** ******* ** ***** *** negative **** ** *** ******* **** ** **** *** ****** to *** ***** *****.

**** ******* ******* ******** ********, *** ********* ******* ******** ***** of *****. *** *******, * ******* *** ********, *** **** for *** ********* ******* *** ******* **** ** ***** *** device. ** *** **** ** ******* *** ****** ****** ** the ***** ***** * ******* ****** ** ******* ***** *** PIR *** *** **** ** ***** *** *****, **** **** require * ***** **** ** *****.

*********, *** ****** ** ***** *** **** **** ** ******** by *** ****** ** ******** *** **** ** ***** ** the ****.

**********

********** ** * *** ****** *** ***** ******* *** ***** are * *** *********** ** ********** ******.********** ** ******** **** ***** *** **** ** ***********. ** measure **** ***** **** (****** Ω).

***** ****** ******* *** ********** ** *** ******* ** ***** than * ******** ******, ***** ******* **** ************ ** ************. If *** ********** ** *** ****, *** ***** **** **** an **** **** *** **** ****. *********, *** **** **** the ********** ** *** ** ******** **** ****** *** *******.

*** ********** ** * ********** **** ** ******** **:

  • **** ******: *** ****** *** **** **, *** ****** ********** it **** ****
  • **** *********: ****** ***** ***** (*.*., ** ***) **** **** higher ********** **** *** **** ******** **** ***** ***** ***** (e.g., ** ***)
  • ********* ********: *** *******, ****** *** ***** ********** **** ********
  • *******: ***** ****** **** **********
  • ***********: ***** ******* *** ********** **** **********

**** ******* * ****, ********** ****** ** ********** **** *** to ******** *** **********. * **** **** *** **** **** of *********** *** ******* ** **** ****** ** ***** ***** alarms **** * ***** **** *** **** * ******* ****** of ******* **.

********

***** *** ***** ********* ******** **** *** ***** *****:

  • ******
  • ****** **** ********
  • ********

****** ** *** **** ******** ****, *** **** ********* ** electricity (*** ********* *** ***** **********) ** *** ***** ****** above, ** ******** *** ********** *** *** ****** ** ********. The **** ******** ** ****** **** ******** ** **** ********* copper **** ******** *** ******** ******. ************, ****** ****** **** been********** ****** ** *********** *********** ****** ** ****.

****: **** ********** **** ****** ****** ** ****, *** **** expensive/less ********* ****** **** ** ******** ****** ********* *****.

****** **** ******** (***) ***** *** ** *********** ***** ******* benefit ** ***** **** ******** ** **** ******. *******, *** is **** **% ** ********* ** ****** *** ********* ********* resistance ** ***** ********. *** ********* ***** ******** *** **********:

******** ***** ** **** **** ********* **** **** ****** *** CCA, **** ** ** ***********. *******, ******* ** ** **** efficient **** ****** *** ***, ** ** **** **** ******** used. ***** ************ ***** ******** ** ********* **** ******** ****** wires *** ***** ***, ***** *** **** ************.

*****

*** *****, ** **** ********, ** ***** ***** **** ******** used *******:

  • ** *** (*******)
  • ** ***
  • ** *** (*******)

***** *** ************ **** *** ******* * ******** **** ********, the ********** ******** *********** ********** **** ********* ******** *** * minimum ** ** *** ***** *** **** ***** ******** *** a ******* ** ** *** *****.

*** ***** *** ******** *** **** **, *** ***** *** resistance ** *** ******** ** * ******* **** ** ******* length.

**** ******** ** ******** ********* ** *********** **** ***** (***)********. *** ****** *** ******, *** ******* *** **** **. As ** *******, ***** **** ** ******* ** ***, *** has * ********** ** ~**Ω *** **** ****. ** *** ** ******** **** *** ***** ******** **** as **** ********, *** *** * ********** ** ~*Ω *** **** ****. *** ***** ***** ***** *** ******** size ** ********* ****:

Solid ** ******** **********

***** ***** *** ** *****, **** ********** ********** ** * single ****, ** ********, **** **** **** **** ******* ******* in * ****** ******. ******** ***** *** **** ********, ****** them ****** ** ***, *** *** ******* **** **** ****** without ********. ***** ***** *** ****** ** *********. ********* ******** are ****** ** **** **** ******** *****, ** **** *** easier ** ******. ************* ********, ***** ***** *** ********* ***** terminals, *** ****** ** **** **** ***** *****.

**********

********** ******** ***** *****. ************* * ******** **** ******** *** **** ** *********. *** purpose ** ** ********* ** ** ******* * **** **** coming **** ******* **** ******* **** *** ** ******* *** wire **** ********* ****** ** ******* **********. ****** **** ********** are * ****** ***** *** ***** ************, *** *** ** quite ********* ** ******** *** ****. **** ******* ***** ** very **** *******, *** ********* ** *** ************ *********** (** opposed ** *** ********* ***********) ****** ******** ** *** ************. If *** ********** ******* ** ****** **** *** ************ ***********, store *** **** ****** ** * ****** **** *** ***** before *** ************.

*** **** ****** ********** ***:

  • ***
  • ***
  • ****** *** ***** **************

*** ** * ***** ****** *** **** ********* *********, *** can ****** ******* ** *** ************, ** **** **** ** taken **** ******* *** ****** ***** ** **********.

*** ***** *** ******** **** ********* **** *** *****, *** offer **** ********** **** ********** *** *** ******* ***** *** lower ************.

****** ***** *** ********* **** ********* **** *** *** ***, but *** ********* ***** *** **** **** ** **** *** and **** ************.

**** ***** *** ***** ******** ** *******************, ***** ******* ******* * **** ********* ******** **** ** non-toxic *** **** *** ***** ****** **** ******, ****** *** other ********** ******** *****.

*********

**** ***** ****** *** ********. *********, **** ****** ** **** between *** ***** *** *** ***** ***** ******. **** ******** wires **** ******* ** *********** ******** **** ******** ** ** used ** * ******. ******** ***** ****** ** **** ******** where ** ************ ** * *******. *** *******, ********** ***** connected ** * ***** ******* *** **** ** ** ************ and ********* **** ** ***** ** ******. ** ************ *** interfere **** ****** ** **** ******** ****. ** ************ *** cause ******** ***** ****** ** *****. ***** ******** ***** ** these ******* *** **** ******* ******* ******* *** ******* *****.

Fire ********** *******

* ******* *** ******** **** ** ***** *****:

  • ******
  • *****
  • ***/***

*** ********* **** ****** ** ******, ** ***. *** ***** in * ******** **** *** *********** *** ** ************ *****.*** *******, *** *** ******* *** ********** ******* *** *** drop ******* ** ***** ********** ****** *****. ** *** **, the *** ********* **** ***** *** ** **** ***** **** certain ************ *** **** ********** (** **** *** **** **** not **** ****** *** **** ******* *** ****** *****) *** toxicity (** **** * ******* **** ****** **** *** **** off ***** ***** ** ** **** ****** ** ***** ****.

***** ***** ** *****, ** ***, *** ******** ** ** run **** ***** ** ***** ** ***-****** *****, *** **** less ********* **** ********** *** ******** *********.

***/*** (***** * *** ***** *) *** *** ******* ******* / "** ****" ***, ******** *** ****** ***** ** **** resistance. **** ** *** ******* ****** **** **** **** ************** are *** * *******. ***** ***** ** * ***** ********* difference ******* *** *** ***, ** ******** **** *** **** interchangeably *** ******* ** ********* ***** / ******* *** **** CL2 *** ***.

Common **** *****

*** **** ****** **** *****, ** ***** ** ****** *** in ***** ******* ***:

  • ********, **********, ** ***, * ********* ****
  • ** *** * ********* **** (****)
  • ******** ** *** * ********* ****

********, **********, ** ***, * ********* ** *** **** **** commonly **** *** ********* ******** **** ** ******** ********. **** wire *** ** ****** *** (****, **** *** *** ***** stuck ********) ** ***** (*****, **** *** *** ***** ******* together). ***** ** ** *********** ********** ******* *** ** *****. The ******** ** *** ****** ** ****** ******** **********.

** *** * ********* **** (******** ***** ******)** **** ** ******* ******* ********* *** ********, **** ** PIRs ** ***** ***** *********, ** ************* ******** **** ** the ********* *********.

******** ** *** * ********* **** ** ********* **** *** notification ******* **** ****** *** ******* ******** **** ** ******* and **** *********.

****** ********* ** *** ****** ************, ***** ***** ***** (**** 24 ***) ** *** ******* ***********, ** ***** ********** *** too **** *** **** ***** *******.

Comments (3)

*** ***** *** ******** *** **** **, *** ***** *** resistance ** *** ******** ** * ******* **** ** ******* length.

* ***** ** **** ** ****** *** ********** ******* ** lower *** **********

**, *** ***** ** ******* ** *** *******. * ****** gauge *********, *** ***' ** ** ** ** ***** ** have **** ********** **** ***' ** ** **. *** ***** conductor *** **** ******* **** ******* ** * ******.

**** ** ******* **********. ***** *** **** ****** ********* ****** **** *** ****** when *********** ******* **** *** * ***** ****** ** ***** in * *******.

* ***** **** ** *** **** ********** ** ****** *********, intermittent ******* *** **** *** ****** *** *** *********. ** experience ** **** **** *********** ***'* ********** *** **** ***, or *** ******* ********* ********. ******* ****** ********* *** ****** when ***** *** ****** *** ***** *****!

***** *** *** ** **, *** ***** * ********** ** surge ***********?

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