Conduit for Surveillance Explained

Author: Ethan Ace, Published on Jul 16, 2014

Cameras frequently need conduit to protect wires and cables connecting them to the headend / recorder.

However, with so many types available, it is may be difficult to determine the right one to use in each application.

There are three types of metallic conduit common to surveillance systems:

  • Electrical Metallic Tubing (EMT)
  • Rigid Metal Conduit (RMC or simply "rigid")
  • Liquidtight Flexible Metallic Conduit ("sealtight" or "liquidtight")

Additionally, there are two types of non-metallic conduit commonly used in surveillance:

  • Rigid PVC conduit
  • Electrical nonmetallic tubing (ENT)

In this note, we break down these types, their costs, and where they fit best.

******* ********** **** ******* ** ******* ***** *** ****** ********** them ** *** ******* / ********.

*******, **** ** **** ***** *********, ** ** *** ** difficult ** ********* *** ***** *** ** *** ** **** application.

***** *** ***** ***** ** ******** ******* ****** ** ************ systems:

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

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

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

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

**** ***** ******** * **** ***** ***** ** **** **** of ******* ******** ****, ***** ****** ************, ** **** ** their ******** ******, ****** **********, *** ****.

Electrical ******** ******

*** ** *** **** ****** **** ** ******* **** ** commercial *********. ** *** *** ******** **** ** *** *** metallic ********, *** **** ****** *** *** ** ***** ***** it ** *** ******* ** ****** ******** ******, **** ** from ******** ** *********. ******** ** ******* ******, ** *** be **** ******** ** **** ***** ******** ***** *********** ****.

************:*** **** ****** *** *********** ***** ** ** ********* **** damage, ******* ** ***, *** ** ***, ********* ****** ******. In********, ** ** ******* **** ******** **** ** * "**** out" ******* **** * ******, **** ******, ** ***** ****** location ** ***** * ********* *******, ** ****** *** ****** be *** **** *** **** ******* *******.

******, ** ** ***** **** ** * ****** **** ******* cables ******* ***** *** **** ******* *******. ********** ****** **** sure ***** *** ******** *** ******** ******* ** ***** ******* where *********.

** ** **** ************* *** ********** *********** ** ** **** ********** ** ****** ******, ****** **** runs ** ******* (*/*"-*/*") *** **** ** **** ******* *** wobble *** ******* ******* ***** *****.

****:*** *** *** ******** ****** ** *** *** ******** ******** and **** ***** *** ** **** ****** ***** **** ***** instead ** ********* ******* ******** *** ***** *******. *** ******** and *** ******* ****** *** *** ****** **** ** ******** conduits, ** ****.

****:********** **** ** ****** ******** ** ***** ********, **** ***** and ***** ****** *******.

****:***** ****** **** ***** $*.** *** **** *** */*" ******* (often **** *** ***** *** ****** ****** ****** ****) ** about $* *** **** *** *" *** (******** **** *** sleeves). *** ** **** ** **' ********.

Rigid ***** *******

********* ****** ****** "*****", **** **** ** ******* ******** ** a **** ******* **** **** ***, ********* ******* ******** ** both ****. ******* ** **** *********, *** ******* ** ***** conduit ******** *********** *** *** ***, *** ******** *** ******** must ** ******** ** ****, ****** *** ***** *** *** set ***** **********.

************:******* ** *** *********, ***** ***** ******* ** **** ** areas ****** *** ** ******* ** ******. *** ** *** higher **** *** ****** *** *** **** ** ********, ***** is *** ******** **** *** **** **** ** ***** ****** where ******** ** ****. ****** ***** ** ***** ******* (*" and **) *** **** ********* **** ******* ** ***** *******.

****:**** ****** ********* ** *** ******* *****.

****:******* **** *** ****** ** *** *** ******** ********. ******** specialized ***** ** ******** **** ***. ******* ********* ******** ********* tools *** ***** ****** **** */*", ** ******* ** **** tools **** ** **** ***.

****:***** ******* ****** **** ***** $*.**/**. *** */*" ** ***** $5 *** **** *** *". *** ** ******** **** ** 10' *******.

Liquidtight ******** ***** *******

***** ****** ****** "****" ** "********", **** **** ** ******* ******** ** * ******** ***** tube ******* ** * *** ******, ****** ** ******** *** use ** *** *********.

************:**** ** **** ***** **** ** ******* **** ***** ** camera ********, **** *****. **** **** ** ******** ******* *** difficult ** **** **** *** ********, ****** *** ** ***** typically * ****** ******.

****:**** ** ******* ** ************ ***** ********** ******* ***** ******* multiple ********/************. ******* ** *** *** ******* ** *** ****** ********** in ********* ***** *** ***** ***** ******** ******** ** **** or *******.

****:****, ******** **** *** **** *********, **** ****** ********** **** EMT ** ***** ******** *** ** "****" ******* ************. *** jacket ***** **** ******** *********** ******* ******** ** ****** ******.

****: */*"***********, *** **** ****** **** ****, ***** *** ***** $*.**/**. Generally **** ** **-***' *****. ****** ***** *** ********* *** generally *** **** ** ************.

PVC *******

*** ******** *** **** ******** **** ** ******* ********* ***** cables *** ******* ** *** ********. **** *** **** **** extruded *** ** *** ****** **** ***********, ****** ******** ** and ******** **, **** **** ********* *********** ****. ****** ***** conduits ***** *** ********** **********, *** ******** *** ********** **** be ***** ********, ** **** *** *** ** ********.

************:***** *** ******* ** **** ******** ****** ******* ******* **********. Schedule ** ** **** **** ** ******* ****, ***** ******** are *** ****** ** ******* ** ******. *** ** *** thicker **** *** ****** ***** **********, ******** ** ** **** often **** **** ******* ** ** ** ******, ******* ** concrete, ** ******* ** ******* *******.

****:*** **** *** ***** ****** ******** ** ******** ********. ***** push ** ***************** ** *******.

****:**** ********* ** ****** **** ******** ********. *********** ****** **** be **** *** ***. ****** *** ***** ******* ****** ******* the ******* *** ******* ** **** (********* **** * *********** heat *** ** ****) ** ********** ***-**** ********, ********** **** and **********.

****:*/*" ******** ** *** ******* ***** *** ~$*.** *** ****,***** ******** ** ***** *** ~$*.**. ********* **** ** **' sections.

Electrical *********** ****** (***)

**** **** ** ******* ******** ** * ******** ******* ********, which ** ***** ****, ****** ** *** ******** "***** ****." It's ***** **** ** ****** *********** ************ ***** **** **** protection ** ******, *** ***** ******* ***** ** **** ***********. It ** ****** ********* *** ** ********** ************, *******, ********** for "**** ****" ***** *** ***** ******** ** ****.

************:*** ** **** ***** **** ** ********* ************ ** ***** or ********, ** ******* ** ***** ***** ********** ** *** a *******, **** ** ********* *** ***********. ** ** **** commonly **** ** * **** *** ** ***** ** ***, connecting * ****** *** ** *** ******* *****.

****:*** **** *** ***** ******, **** ** *** **** **** on **********.

****:******************** ** *** ******* *****, ****** ** ******* ** ****** cables. *** ** ****** ********** ** ****** ** ***** ****** construction.

****:*/*" *** ***** *** ***** $*.**/**., ********* ** ***** ** 100'.

Comments (5)

*****, ** ***** **** ****** **** *** *** *** ******* Intermediate ******* ******* (***)? ** *** * ****** **** ********* than ***** *** *** ** **** **** ********** ***** ** used. **** ** ** ***** */** *** ****** ** *****, making ** ****** ** ******.

* **** ** *** ******* ** *****'* *** **** ****** as **** ** *** ** *****. * ***** **** **'* lighter *** ***** ****, ** **** ***'* ** ******. *'** seen ***** * *** ************ *** **** ***** **.

** *** * **** ** ***?

** ***** * ******* ** *** **** *** ** (*/*") to *** ** ** *** ***? **** ** *** ************ between ******** ******* *** ****** *********? ** ** ** ** twice ** *****?

*** ** ********* *** ********. * *****'* **** ********** ******** for **, *** * ***** ** *****. ******* *** ** isn't ****** *** *** *******, ******.

**** ******, * ***'* **** *** ** ** ** ***** as ***** ** **, *** * ***'* ***** ** **. There's**** ** **** ****.

*****, *** ******, ** **** *******, ** *** ******** ** direct ****** ** *** ******* ********** ********* **********? * **** always **** *** ******** *** *** ****** *** ****** ******. I ***** ***** *** **** ** **** ****** **** **** in ***** *** **** **** ********** ********** ** ****** ****** situations, ********** ******* ******** ********* ********.

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