Gary Schafer wrote:
>>> .
>>
>>
>>
>> I disagree- the SPG and household wiring are inseparable because all
>> the conductors in the house are related to ground by the neutral and
>> safety ground wires.
>
>
> No they are not! Neutral and safety ground are two separate and
> distinct circuits. They are only common at the main disconnect in the
> house. The purpose of them being separate is so no neutral current
> ever flows on the ground wire.
>
> 73
> Gary K4FMX
>
Gary- your statement is only true and pertinent during "normal"
operation. The concept of the SPG is more associated with abnormal (ie-
near strikes) situations, when paths to the panel ground need to be
provided to minimize voltage differences between and within equipment.
Bill
>
>
>
>
>
>>
>>>
>>> With single point grounding for the antenna / power system the idea
>>> is to not have ground paths through any equipment to ground.
>>>
>>> 73
>>> Gary K4FMX
>>>
>>>
>>> Bill Aycock wrote:
>>>
>>>> Gary- when you indicate a quote, you MUST be sure to use the real
>>>> quote. You severely edited my statement and changed the meaning.
>>>> What I SAID, (AND THIS IS A REAL QUOTE, COPIED FROM MY POST) WAS:
>>>>
>>>>> In the article, the neutral and the earth ground are only
>>>>> connected through earth at the panel end and the transformer end
>>>>> of the service.
>>>>>
>>>> The "through earth" makes MUCH difference. There is no wire or
>>>> metal connection- only earth, between two rods or a rod and a pipe.
>>>> This is not an SPG.
>>>> Bill
>>>>
>>>>
>>>> Gary Schafer wrote:
>>>>
>>>>> Maybe I am misunderstanding what you are saying the article says?
>>>>> I don't have the article.
>>>>>
>>>>> You said: "In the article the neutral and ground are only
>>>>> connected at the panel end and the transformer end".
>>>>>
>>>>> That is the correct way to do it provided the "panel" is the main
>>>>> service disconnect. If the panel is a sub panel or the main
>>>>> disconnect is located at the meter or somewhere else away from the
>>>>> "panel" then the neutral ground connection should be at the main
>>>>> disconnect only and not at the "panel".
>>>>>
>>>>> So which way is the article saying to do it??
>>>>>
>>>>> 73
>>>>> Gary K4FMX
>>>>>
>>>>> Bill Aycock wrote:
>>>>>
>>>>>> But, Gary- he has the ground NOT connected to the neutral at the
>>>>>> service disconnect point.
>>>>>> Bill
>>>>>>
>>>>>> Gary Schafer wrote:
>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Bill Aycock wrote:
>>>>>>>
>>>>>>>> The regular article, "Math's Notes" in CQ in the October issue
>>>>>>>> is on the subject of wiring safety, but appears to have a
>>>>>>>> serious flaw concerning the concept of "single Point Ground" as
>>>>>>>> currently used by most Hams, and as required by my local power
>>>>>>>> company.
>>>>>>>> In the article, the neutral and the earth ground are only
>>>>>>>> connected through earth at the panel end and the transformer
>>>>>>>> end of the service.
>>>>>>>> Comment? Am I wrong, here?
>>>>>>>> Bill-W4BSG
>>>>>>>>
>>>>>>>
>>>>>>> Ground is to be connected to neutral only at the main service
>>>>>>> disconnect point. The power company also grounds neutral at the
>>>>>>> transformer.
>>>>>>>
>>>>>>> 73
>>>>>>> Gary K4FMX
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>
>
>
>
>
--
Bill Aycock W4BSG
Woodville, Alabama
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