Tip & How-To about Electrical Supplies

When on/off switches break

When switches dont turn OFF,your power tools,you can hook your tool up to a standard household surge protector box,that has a switch on it, to run your tool,or on some tools like tile saws you can buy a foot pedal to turn it on or off

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When and How Should a Surge Protector Be Used on a Fixed Switch?


Common Causes of Lightning Strikes
  • Outdoor network cables or power cables are routed overhead.
  • A switch is deployed outdoors but is not properly grounded.

Damages of Lightning Strikes
  • If power cables of a switch are routed overhead in an outdoor environment, lightning strikes may burn the power supplies.
  • If network cables of a switch are routed overhead in an outdoor environment, lightning strikes may burn interfaces of the switch.
When a switch undergoes lightning strikes, overvoltage is induced by lightning on network cables and transmitted to interior of the chassis. The surge protection measures, such as lightning rod and chassis grounding cannot prevent the damage. Therefore, surge protectors or surge protection circuits are recommended.

Surge Protector Use Precautions Take the following precautions to protect a switch from lightning:
  • Ensure that the ground cable is connected to a ground bar or a ground point on the cabinet.
  • Avoid routing cables overhead in an outdoor environment. Bury cables underground or route them in steel tubes.
  • To protect network interfaces against lightning, use 8-line surge protectors (or Huawei certified 4-line surge protectors).
  • When installing a network interface surge protector, connect the IN end to terminals and the OUT end to network interfaces of the switch.
If a fixed switch is installed in a network box, follow these instructions:
  • Connect the ground cables of the switch and surge protectors to the ground bar in the network box.
  • The maximum length of a ground cable cannot exceed 40 cm, and a length of smaller than 15 cm is recommended.
  • If the network box is located outdoors and power cables are routed aerially over a long distance (more than 300 m) to the network box, it is recommended that you install a power supply surge protector in the network box. The decoupled power cable must be at least 3 m long
S2300 Switch Thunder link com

Dec 08, 2016 | Office Equipment & Supplies

2 Answers

Had power surge. Tv was on surge protector. Now no power will come on and just makes a buzzing sound.


Have you tried plugging it in without the surge protector? I would wager that either a) the surge protector needs to be reset/turned on and off depending on the model or b) either your TV and/or surge protector have been damaged by the power surge.

Try plugging the TV straight into the outlet and see if that helps.

Oct 25, 2012 | Televison & Video

1 Answer

I had a power outage a couple nights ago, which has caused my television to not turn on. It is a Toshiba model CZ27T31, which was off & plugged into a surge protector at the time the storm knocked the power out. Is there a reset or breaker switch that can be pushed to solve this? If it's a bigger problem, is it worth the cost of repair being that this is an 11 year old set?


Please check if your surge protector is working properly now. There is possibility that the surge protector is blown off due to high voltage surge. Check if your surge protector has a reset switch which some of the surge protectors have. If the problem still persists then you have to call the technician to replace the safety fuse which is inside the TV. The cost will not be much. I will personally recommend that you change your TV as it has outlived its life being 10 yrs old.

Aug 10, 2010 | Toshiba Televison & Video

3 Answers

my daughters xps 200 won't start, she presses the button and nothing. She has checked the surge protector that it is pluged into and it is OK... is there a reset button is there was a power surge??


most surge protectors have some sort of on/off switch and a reset button. If there was a surge then you would need to pres the reset button to get the surge protector to function again. If there was no surge then try using the on/off switch on the surge protector to see if that helps. Also try simply unplugging the power cord from the back of the desktop while the computer is turned off. This will sometime also help.

Oct 12, 2009 | Dell XPS 200 PC Desktop

1 Answer

Insignia ns-24ftv won't turn on


I hope it was plugged into a Surge Protector!!!!..

If not, make sure ALL your Breaker Switches are on in the house, RESET THE SURGE PROTECTOR (power bar thingy you got the tv plugged into..).... they will switch off usually to protect the tv...

Mar 19, 2009 | Insignia NS-30HTV 30" TV

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