em14
Platinum Member
That is a beautiful picture!
Leo
Leo
Electric Sub-Panel Installation
- Thread starter tc35dforme
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hitekcountry
Gold Member
- Joined
- Oct 14, 2004
- Messages
- 489
- Location
- Ca. Mountains west of Silicon Valley
- Tractor
- Kabota 6100 Kabota L35
ZJ
Beautiful country where you live.
Are brick and concrete buildings built with steel reinforcing? Where I live (practically on top of the San Andreas fault in California) building to withstand earth quakes is a major focus of the building code, all new brick or concrete buildings must be built with steel reinforcing. Most houses are wood construction.
Are earth quakes a concern in your country?
Fred
Beautiful country where you live.
Are brick and concrete buildings built with steel reinforcing? Where I live (practically on top of the San Andreas fault in California) building to withstand earth quakes is a major focus of the building code, all new brick or concrete buildings must be built with steel reinforcing. Most houses are wood construction.
Are earth quakes a concern in your country?
Fred
ZJ_HR
Gold Member
Fred,
All new houses are made with angles and middle of walls with cocrete posts reinforced with minimum 4 wires of 14mm (9/16"). We didn't have earthquake concern up to now, but who knows. Old part of house on picture is made in begining 50-es, so its 55y old. So, there was no sense to made addition with concrete posts. As you can see, our "pole barn" is done with reinforced concrete poles.
There is no wooden houses in my area, and if so, they are rebuilt old oak (thick 2" or more) houses, totally different built then there (according to the Eddie Walker pictures).
Old barns have mainly oak posts construction and with boards nailed vertically. 99% of them are tile roofed. Rest 1% is covered with rye straw, but very, very rare to find.
All new houses are made with angles and middle of walls with cocrete posts reinforced with minimum 4 wires of 14mm (9/16"). We didn't have earthquake concern up to now, but who knows. Old part of house on picture is made in begining 50-es, so its 55y old. So, there was no sense to made addition with concrete posts. As you can see, our "pole barn" is done with reinforced concrete poles.
There is no wooden houses in my area, and if so, they are rebuilt old oak (thick 2" or more) houses, totally different built then there (according to the Eddie Walker pictures).
Old barns have mainly oak posts construction and with boards nailed vertically. 99% of them are tile roofed. Rest 1% is covered with rye straw, but very, very rare to find.
hitekcountry
Gold Member
- Joined
- Oct 14, 2004
- Messages
- 489
- Location
- Ca. Mountains west of Silicon Valley
- Tractor
- Kabota 6100 Kabota L35
ZJ
Thanks for the info.
Looks like the front of a tractor in the barn. Do you have any pics of your tractors you could post?
Fred
Thanks for the info.
Looks like the front of a tractor in the barn. Do you have any pics of your tractors you could post?
Fred
quote
I just had an inspector tell me within the last week that the three wire (L1, L2, neutral) no longer meets code. Any new work (as in wiring to a stove or dryer)
Just like I said a dryer and range use a neutral and require a fourth wire, welder, HWT, and A/C does not.
I just had an inspector tell me within the last week that the three wire (L1, L2, neutral) no longer meets code. Any new work (as in wiring to a stove or dryer)
Just like I said a dryer and range use a neutral and require a fourth wire, welder, HWT, and A/C does not.
hitekcountry
Gold Member
- Joined
- Oct 14, 2004
- Messages
- 489
- Location
- Ca. Mountains west of Silicon Valley
- Tractor
- Kabota 6100 Kabota L35
Sparkkky
Your right, Maybe next time I should read slower and engage brain. Wow what a concept! /forums/images/graemlins/blush.gif /forums/images/graemlins/grin.gif
Thanks for keeping me honest. /forums/images/graemlins/smirk.gif
Fred
Your right, Maybe next time I should read slower and engage brain. Wow what a concept! /forums/images/graemlins/blush.gif /forums/images/graemlins/grin.gif
Thanks for keeping me honest. /forums/images/graemlins/smirk.gif
Fred
djradz
Veteran Member
</font><font color="blue" class="small">( Running only 3 wires for a sub panel is against the national electric code. You must pull all 4 and the ground and neutral must not be bonded in the sub panel as they are in the main panel. Putting in a ground rod at the barn only will not draw enough current to trip a 15 amp breaker but it will draw enough current to kill you. )</font> I don't believe this is true. You can establish what I believe is called a "separately derived system", which has it's own ground. All the branch breakers/circuits, in the sub-panel are then protected in the same manner as the main panel. In a sense, you've just duplicated the main panel installation. Only three conductors -two hots and a neutral, come from the utility to that.
mudcat
Platinum Member
If he is looking to cut cost by pulling three wires instead of four a seperateley derived system is out of the question.
Farwell
Veteran Member
Running only three wires may be against the national electric code unless it is a separately derived system. If the sub-panel is located in a structure that contains the main panel I think that you may need to run the four wires but if the sub-panel is in a separate building isolated from the building that contains the main panel it may qualify as a separately derived system. A problem that could occur would be if the separate building has common utilities with the main structure, such as natural gas in metal pipes, water in metal pipes and probably phone lines. The next issue is do you bond the neutral wire to the sub-panel box in the separately derived system. According to my local code, they want the three wires and the neutral to panel box bonding. The above is what I have learned the hard way from my local inspector and may apply to my area only.
