12-16-2009, 05:01 PM
Wao nahele kane,
"Soil" is used in the NEC, its not a Hawaii thing. You can install only one ground rod but then you have to test it show less than 25 ohms. If you put in two, no test is needed.
Regarding your "off topic" post, yes, lava is a lousy conductor. Which is why when lightening strikes it sometimes travels on the surface until it finds a nice conductive ground rod and travels up into your service, then to all your fancy electronic devices. The moral of the story, unplug your electronic stuff when you hear lightening and don't use your land line phone.
Jerry
"Soil" is used in the NEC, its not a Hawaii thing. You can install only one ground rod but then you have to test it show less than 25 ohms. If you put in two, no test is needed.
Regarding your "off topic" post, yes, lava is a lousy conductor. Which is why when lightening strikes it sometimes travels on the surface until it finds a nice conductive ground rod and travels up into your service, then to all your fancy electronic devices. The moral of the story, unplug your electronic stuff when you hear lightening and don't use your land line phone.
Jerry