surge protection
- Thread starter rayman506
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jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
I have not heard anything about this? Are you sure about this?
Hameedulla-Ekhlas
Senior Member
- Location
- AFG
In NEC-2008 there is information for TVSS for sensitive electronic equipment.
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
I think the OP is talking about whole house surge protectors.
Hameedulla-Ekhlas
Senior Member
- Location
- AFG
I think he is talking installing TVSS in Panelboard. If he is talking about whole house, it is better to take or install lightning system for whole building. But it costs him extra lightning system for residentional house
I am talking about if it is required Per the NEC to install a surge arrester for a resisdential service.
Last edited:
jumper
Senior Member
- Location
- 3 Hr 2 Min from Winged Horses
Nope. No requirement. Who told you this?
gar
Senior Member
- Location
- Ann Arbor, Michigan
- Occupation
- EE
100428-0858 EST
What is a "surge protector" and how does it work?
What is is the definition of surge? How does this differ from spike or transient? Is a rise in voltage from 120 to 140 V a surge? If so, then how do you expect an MOV to provide any voltage limitation? What is the VI characteristic of an MOV designed for use on a 120 V circuit?
What do you want a "surge protector" to do? Is protector even the correct word? Can you even protect against surges?
The point of these questions is what is your goal?
.
What is a "surge protector" and how does it work?
What is is the definition of surge? How does this differ from spike or transient? Is a rise in voltage from 120 to 140 V a surge? If so, then how do you expect an MOV to provide any voltage limitation? What is the VI characteristic of an MOV designed for use on a 120 V circuit?
What do you want a "surge protector" to do? Is protector even the correct word? Can you even protect against surges?
The point of these questions is what is your goal?
.
Hameedulla-Ekhlas
Senior Member
- Location
- AFG
I have used the following type TVSS and its purpose of usage in projects.
I mostly use the following type of TVSS in projects for protections.
they are legrand and ABB company
Type I: Main AC power entrance protection
The type I TVSS is designed to protect commercial
and industrial facilities from the damaging affects of
lightning. Power cables carry the damaging current into
facilities. The device shunts these damaging currents
safely to earth ground.
Type II: Distribution power ? Panel protection
The type II TVSS is designed to protect all standard
power Sub-distribution panel from damaging power line
transients.
Type III: Branch circuit and equipment protection
Telecom / Data line protector:
Protection of equipment connected onto telephone lines,
computer, communication or data links, and current
loops.
- Location
- Bremerton, Washington
No requirement for SPD in any occupancy. There was a proposal for SPDs to be installed in dwelling units for the 11 NEC but it was rejected.
Hameedulla-Ekhlas
Senior Member
- Location
- AFG
It should have been approved for 11 NEC because thesedays electronic equipments are growing in every house.
In my own house, I lost two computer chargers at once only by once voltage increase during midnight.
If I had installed SPDs, I am sure it would not happen.
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