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Originally Posted by busterb
TW. I bought Belkin brand. BTW my phone wires were burned from the box down into ground. They ran a cable across the yard and didn't hook the grn. back up. I have called about it twice and made photos showing the grn. hanging loose.
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Get the specs for that Belkin. Where does it even claim to protect from longitudinal mode transients? Longitudinal are the type that cause hardware damage. Belkin doesn't even claim such protection.
That NID (phone line box) must connect to earth ground as even required by National Electrical Code:
From the National Electrical Code Article 800.30A:
> A listed primary protector shall be provided on each circuit
> run partly or entirely in aerial wire or aerial cable not
> confined within the block containing the building served so
> as to be exposed to accidental contact with electric light or
> power conductor operating at over 300 volts to ground. In
> addition, where there exists a lightning exposure, each
> interbuilding circuit on a premise shall be protected by a
> listed primary protector at each end of the interbuilding
> circuit.
Article 800.30B Location.
> The primary protector shall be located in, on, or immediately
> adjacent to the structure or building served and as close as
> practical to the point of entrance.
Article 800.31
> The primary protector shall consist of an arrester connected
> between each line conductor and ground in an appropriate
> mounting. Primary protector terminals shall be marked to
> indicate line and ground as applicable.
Article 800.40.A.3 Size
> The grounding conducotr shall not be smaller than 14 AWG.
Article 800.40.A.4 Length
> The primary protector grounding conductor shall be as short
> as practicable. In one- and two-family dwellings, the
> primary protector grounding conductor shall be as short as
> practicable, not to exceed 6.0 meters (20 ft) in length.
In short, your effective protector is installed by the telephone company for free, must be earthed, and must make that earthing connection as short as possible.
How do you know the Belkin does nothing effective? It has no earth ground AND does not even discuss earthing in a hope you will believe myths - buy their product. Notice it does not even claim longitudinal mode protection.
A phone call to the PUC may be required. Unfortunately, some jurisdictions that take a 'screw the NEC' attitude.