Hello All,
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing?
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing? --
It is necessary does anyone know anything about it my lan card gets changed every year due to lightning strike
----- Original Message ----- From: "Dilip Khanolkar" khanolkardilip@gmail.com To: "GNU/Linux Users Group, Mumbai, India" linuxers@mm.glug-bom.org Sent: Tuesday, June 19, 2007 9:50 PM Subject: Re: [ILUG-BOM] [OT] Lightning protection for ethernet ports?
Such a product is available abroad at least.
Check out this url http://catalog.belkin.com/IWCatProductPage.process?Product_Id=329545
This should serve your purpose. Or at least you can look for a similar product here in India.
Vinod Chand
On 6/19/07, Rony wrote:
Hello All,
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing? -- Regards,
Rony.
Oh and there's also the problem of water seeping through the Ethernet cable. A "LAN lightning protector" would be great. The only other option is to keep the cable unplugged during thunderstorms.
On 19-Jun-07, at 8:57 PM, Rony wrote:
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing?
when i last enquired - about three or four years back - the cheap ones are no good and the others cost about 45 USD
On Tuesday 19 June 2007 20:57, Rony wrote:
Hello All,
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing?
Use a lan card for internet. your mobo is going to fry not by lightining but by electricity leakages due to moisture and capillary action inside the cable. A propah lightning arrestor requires a gas filled discharge tube with low inductance leads and a fuse. It costs about Rs.150/-. You can build one by using a neon lamp (the tiny ones in a tester or jewel lights), two 1n4001 diodes connected back to back (or better still 7.1v zeners) and a 500ma fuse . you will require one such circuit for each wire in the cable. Connect the diodes back to back in series. connect the neon lamp across the diodes. connect one end of this combi to the fuse and the other to earth (That is the mains earth) wire in--fuse--+--wireout wireout -->|----|<--- +---earth wireout --| neon lamp |---earth
Hope the ascii art is ok. The chances of saving equipment is quite slim when lightning strikes even with the circuit but it will sure save your house from going up in flames while you are goofing off in office. My friends pc was fried by tatainidicom string cable across mseb wires, which made contact with the live wires and burnt everything to crispy. Lucky nobody was using the comp or sitting with headphones plastered to his skull.
jtd wrote:
On Tuesday 19 June 2007 20:57, Rony wrote:
Hello All,
The rains have hardly begun and my client's mobo was its first casualty. Its on-board LAN got zapped by lightning through the cable internet while the pc was off. Is there any small handy LAN lightning protector that can be given to all clients with cable internet? Has anyone used such a thing?
Use a lan card for internet. your mobo is going to fry not by lightining but by electricity leakages due to moisture and capillary action inside the cable. A propah lightning arrestor requires a gas filled discharge tube with low inductance leads and a fuse. It costs about Rs.150/-. You can build one by using a neon lamp (the tiny ones in a tester or jewel lights), two 1n4001 diodes connected back to back (or better still 7.1v zeners) and a 500ma fuse . you will require one such circuit for each wire in the cable. Connect the diodes back to back in series. connect the neon lamp across the diodes. connect one end of this combi to the fuse and the other to earth (That is the mains earth) wire in--fuse--+--wireout wireout -->|----|<--- +---earth wireout --| neon lamp |---earth
Hope the ascii art is ok.
Thanks a lot.
The chances of saving equipment is quite slim when lightning strikes even with the circuit but it will sure save your house from going up in flames while you are goofing off in office. My friends pc was fried by tatainidicom string cable across mseb wires, which made contact with the live wires and burnt everything to crispy.
Lucky nobody was using the comp or sitting with headphones plastered to his skull.
Oh God!
-
Dilip Khanolkar -
jtd -
Kenneth Gonsalves -
osric fernandes -
Rony -
Vinod Chand