DELInstallations said:I've dealt with improperly selected SPD's and once the clamping voltage was adjusted, the damage stopped, other than the self-sacrificing SPD's.
mikefamig said:Westom seems to like baiting people into arguments and he's pretty good at it.
And frankly sir, you are hilarious and full of yourself.westom said:Westom rightly disrespects people who lie. Nobody was baited. A liar was exposed.
He also provided bogus recommendations for the OP whose damage in both garage and house probably could have been averted by a 'whole house' solution in a detached garage.
DELInstallations said:"protectors" as you determined that I'm unaware of do ZERO to protect any premises connected devices. They've always been to protect the CO and NOT the premise wiring or devices. It's so basic and lets so much current through that anything connected downstream is going to be a smouldering pile. So much for clamping voltage and response times.
NeverDie said:IIRC, IEEE recommends both a whole house solution together with individual surge protectors. So, at least according to IEEE, one does not substitute for the other.
In actual practice, lightning protection is achieve by the process of interception of lightning produced surges, diverting them to ground, and by altering their associated wave shapes.
It is important to ensure that low-impedance grounding and bonding connections exist among the telephone and data equipment, the ac power system's electrical safety-grounding system, and the building grounding electrode system. ...
Failure to observe any part of this grounding requirement may result in hazardous potential being developed between the telephone (data) equipment and other grounded items that personnel may be near or might simultaneously contact.
For large surge currents, (transient) diversion is best accomplished in two stages: the first diversion should be performed at the service entrance to the building. Then, any residual voltage resulting from the action (of the suppression device) can be dealt with by a second protective device at the power panel of the computer room (or other critical load). In this manner, the wiring inside the building is not required to carry the large surge current to and from the diverter at the end of a branch circuit.
Still, a 99.5% protection level will reduce the incidence of direct strokes from one stroke per 30 years ... to one stroke per 6000 years ... Protection at 99.5% is the practical choice.
Defined was a minimal 'whole house' protector number. 50,000 amps. That protector is over 100,000 amps. So it is better than a minimally acceptable protector that sell for about $60.NeverDie said:
westom said:How does that current get into LV portion of the system if it is earthed BEFORE entering a building? it doesn't.
Meanwhile a 'whole house' solution addresses all types of surges - including any that might be generated by a household appliance.
OP has damage typically because wires between a detached garage and house were not properly earthed using a 'whole house' solution. How to avert that damage was well understood over 100 years ago. That solution even exists in every town today.
I would like to understand your confusion. But some sentences are not even coherent. Items you are trying to discuss are both vague and subjective. Subjective is how junk science is proven. Please post relevant numbers.
For example, "... I'm unaware of do ZERO to protect any premises ...". Are you confusing 'near zero' with ZERO? Since denials do not even cite numbers, then it might as well be a Trump style accusation.
Telco installs 'whole house' protection (for free) at the subscriber interface for the same reason the OP needs that protection on both his detached garage and house. Properly earthed protector at both ends of phone wires are necessary to protect both subscriber and CO equipment. Properly earthed protector at both a detached garage are necessary to protect both garage and household appliances. If he did not have a 'whole house' solution at that garage, then damage to contents in a garage and house may and did occur.
DELInstallations said:he telco protectors you tout as the cat's meow are self sacrificing....they shunt to ground or physically disconnect and shunt to ground.
DELInstallations said:You're amusing Westom. Either a bad troll or a poor google translate or an amusing bot.
Good day to you sir.