[TowerTalk] CQ article error(?)

[Bill Aycock]

Gary Schafer wrote:

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>> 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.
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> 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

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>>> 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
>>>>>>>
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-- 
Bill Aycock W4BSG
Woodville, Alabama