Lightning Protection for Surveillance Cameras
Lightning strikes can cause significant damage and major expenses for surveillance systems, so how can integrators and end-users protect systems against this powerful, unpredictable and destructive force?
An unprotected hit by lightning will destroy a camera and put other connected devices, such as switches, recorders, and servers at risk. In this report, IPVM examines lightning protectors, their cost, usability, when they are needed, types to consider, and how to install them.
Lightning **** ********** ******
******* ** ******* ********, **** ***** of *** ***** *** **** ***** to ********* ******* **** ******. ***** party*********** ******* ********* ******* ******** **** *** ****** ******** ***** the **** ** *******:
********** ***** ********* ******* ** *** US, ** ****, ********* **** ** what ***** *** *** **** ***** to ****:
********** **** ********* *** ***** ******** in * ****** **** ******** ******** will ******* ** **** **** ******** sense ** *** **** ** ********* strikes.
POle- *** ****-******* ********* ****
*********** ******** ******* ********* ********** ** cameras ******* **** *** **** ** buildings, ** *****, ************, ** ***** highly ******* *********.
**** ******* ** * ******* ***** atop * ********, * ****** *********** becomes * ********* ***.
**** ********* ****** **** ********* ********** should ** ********* ** *** ******* cameras, ********** ** *** ******** ********. However, ***** *** **** ** **********, $50-100 *** ******, ***** *** ** a ~**% ******** *** ***** ******, often ******** **** ****.
******** ** ******* ******, ********* ********** is *** ******** ** ******* *** camera ** ***** ********* ******* **** being ********* ** *********. ** ********* strikes * ******, **** ****** ** most ****** ***** ** ** *********. Instead, *** ********* ** ******** ** prevent ********* *********** (********, *******, ****, etc.) ** *** ********* **** **** being *******.
Types ** ********* ***** **********
********* ********** *** **** ** ******- and *****-**** **************:
******-****
********** ** **** **** *** **** for * ****** ******, *** *** typically ******* **** *** ******. ******-**** protectors *** **** **** **** * small ****** ** ******* ******* *** installed.
******* *** ********* *** ****** ***** over ****, ** ******* ***** ***, or ** **** ********* *** ** addition ** **/*** ***** *****. ******-**** protectors ********* **** *** $**-*** *** online.
*****-****
*****-**** ***** ********** *** ******* ** connecting **-** ******* ** ***** ******* devices, ********** ***** ****** **** ******** RJ45 *****.
*******, ***** ******* *** ***** ****-******* near ******* ** ********* ********* ******** to ******* **** ******** **** ******** equipment ** *** ****. ********* ********** sell *** $*** *** **, ********* on **** ***** *** *************.
************
*** ****** **** ********* ****** ********* lightning ********** ** *********. ******* * good ******, *** ********* *** ** path ** ****** ******* ******* **, rendering ** *********.
*** ***** ********* ****** ** ******** to *** ** *** ********* ****** with * ******* **** ****** ****:
- ******** ********** *****
- ********** ******* ******
- ******** **** ***** ****
- ***** ********** ****** ****
**** * *********** **********, ** ** preferable ** ******* ********* ********** ****** to *** ******, ****** *** **** to *** ****** **** ******* **** the ********* **** ** *** ***** run. ** *** ***** *** ** too *****, ** *** ******* **** resistance **** *********, ******** *** ************* of *** ********* *********.
**** **** **** ** ***** **** installing ******-**** ***** **********, ** ********** codes ********* ******** ******* *********** ** ceilings, ** ***** ********** **** ** installed ** * ******** *********. ******** protection **** *** ****** **** ******** more ************ *****, ** * ********* point **** ** ***** *** **** camera, ***** *** ** *** *** be ******* *********.
********** "*******"...
***** **** ***** *** *** **? You ******'* ** **** ** ****** it ******, *** **** ******** **** to ** ********* ******* *** ******** at *** "*******" ********.
** *** **** ** ******* ** inside, *** ****** **** ***** ****** certainly ** *** **** ** ** effective.
**** ***** ***** ***.
** ***,
* *** ********* ** **** -
"*******, ***** ******* *** ***** ****-******* near ******* ** ********* ********* ******** to ******* **** ******** **** ******** equipment ** *** ****. ********* ********** sell *** $*** *** **, ********* on **** ***** *** *************".
***. *****, * ******* ***** **** that ******* **'* ********. *'* ******* of *** **** ****** **** ******. The *** ******** ** * ***** protector *** ***'* ***** *** ******** remotely *********** ********* **********. ** ***** be ********* *** **** ********* ******* current **** * ****** ******, *** it's ***** ******* *** ** ****** lightning ******.
**** ********* ********* ******* **** ******* link (********* ***) **** ** ******** to **** **** ******** ** *** gap ******* **** ******** *** ******** strike **** ******** *** ********. (*'* unaware ** *** **** ******* ** the ********** ******.)
*** ***** ****** ** *** ******* does **** * *** ********* ****, but **'* * ******* ******* **** also *****'* ******* ********** ******** **** what's ******** *** *********.
*** ******** ******* ***** **** ** good *** ********** ******* *** ********* to ***** *** *** ********** ** electrical *********. ******** **** ** ********* snake ***.
*** **** **** **** ***** ***** off ** * **** ******** ******* mentioning *** ** *** ******* ** limitations ** ******* ************.
***, ******** ********* ***** ** ****** a ****** *******. **** *** ************ drain *** ********** ******* ****** ** some ****** *******, ***** *****, ****** potential ***********, *** ****. *** ******* one ** *** ****** *** *** at *** ******** ********. *** ******* current ** ********* ******* ***. *** given *** ***** ****, **** *** little **** ****** **** ******** ********* shielded *******.
** ****** **** ** ***** **** a **** ********* ******** *** ******** would **** ** ******* * ********** gas *****, *** *** **** *********, with *** ****** ******* ******** ******** to ******. ** * ****** ******** device ***** ** ****** ***** *** in *** ************ ** $***-$*** *** connection **** ***** ** *** **** of *** ***** *****. *** **** is ********* *** ***** ****** ***'* a ****** **** **** ** *** commercial ******.
*** ******** ******* ***** **** ** good *** ********** ******* *** ********* to ***** *** *** ********** ** electrical *********. ******** **** ** ********* snake ***.
***, ******** ********* ***** ** ****** a ****** *******. **** *** ************ drain *** ********** ******* ****** ** some ****** *******, ***** *****, ****** potential ***********, *** ****. *** ******* one ** *** ****** *** *** at *** ******** ********. *** ******* current ** ********* ******* ***. *** given *** ***** ****, **** *** little **** ****** **** ******** ********* shielded *******.
**, ***** *** ** **? ***** oil ** **** ** ***** * useful ******* **** ******** *********? ****** contradiction ***** ** **** * **********.
**** *** ***** *** *** ********* protection. *** ******* **** ** ***** is ******** *** ***** *** **********.
***** ***!
*** **** **** **** ***** ***** off ** * **** ******** ******* mentioning *** ** *** ******* ** limitations ** ******* ************.
**** ** ****** ** ******:
******** ** ******* ******, ********* ********** is *** ******** ** ******* *** camera ** ***** ********* ******* **** being ********* ** *********. ** ********* strikes * ******, **** ****** ** most ****** ***** ** ** *********.
** *******, ** **** ****** ****** or ******** ** **** **********? * have *** **** ***** ******* ********* a ****** ******, *** *** ******** damages **** *** ** ******** ******.
** *******, * ******'* ******** **** statement **********, *** ** ********* **** do * *** ** * ********** by ****-************.
**** ** *** ****** ** * lightning ******? **** *** *** ******** risks **** ****** ** *********? **** are ******* **** **** ******** ** address? **** *** ******* ****** ********** with * ********* ******? *** ***** are ***** *** ******* ******* ********* at ********** ******** *******?
**** ** ** ****+ *******, *** it ** **** ****** ********** *** doesn't ******* *** *********** *** ******* from ********* *********. *** *** *** have ** ******* ***** ********* ********** services *** ***** ******* ****-***** ** far-field ********, ****** ********* **** ** common **** ********?
**** ***** ****** ** * ******** for ********* ************* ** *** ******** field. *** *****'* ****** * ******* about *** ** ********* ********* ***** devices. *** *********** ** ***** ************ is *********** ************** *** *** ******* does ******* ** ******* ***** ***** specific *********** ** *** ** ****** customer ************ ********** ***** ********.
** **** ***** **** *** *** on **** ** ***** ******** ** being *** ****** *** ******. *'* not ****** ***** ******* ***** ** be * ******, *** *'** **** cereal ***** **** ****** **** ******.
** *** * ****** ***** **** outdoor ******** ** **** ****. **** are ******* ********** ** * ******** base **** ****** ** ** ********* unless ***** *** ***** **** ********* strips ******. ******* ** *** **** to ***** ***** *** ****** ********* on ***** ********* ** **** ****** equipment ***********. ***** ********** *** **** to ******* ****.
** ***** ***** ******* *** ****** damaged, ** ****** *** ****** ** individual *** ***** ** *** ******.
********* *** ** ***** ** * 6AWG ********* *** * ****** *** next ** *** ******** ***. *** large *** ***** ****? ** ******, conductor **** *** ****** ***** ** code ************.
** ******** ** **** ** ** group * **** (** *** ******* device) ******** ** * *** ****** and ****** **** ****** **** **** the **** ******* *********. **** *-**** switch ** **** ********* *** ***** link ** *** **** **** / core ******. **** ** **** ********* and ****** *** ****** ** ***** groups ** *******.
**** *** ***** ********* ** *** same ******** *****, *** **** ** still * ****** **** ****. * like **.
**** ****** *** *******'* **** ** "************** ********** *** ************ *******."
**** **** ** ********* **********, *** to ****** ****** *** ******* "********* protection", ** ****** *******.
******, ********* ** *** ******* ***** of *** *****.
*** ******* *** *** **** ** highlight:
*. ********** *** ***** ********************* ************* ******/**** *** ************ ****** "collateral *******" ** *********** *********.
*. **** **** **** "*** *********" surge ********* ** *** ******** ***+ or **** *** (***/***) ******** *** high-end *** *******.