hoghead
We have a lot of pole mounted meters with 200amp panels.They have feedthru lugs to feed the mobile home and 4 or 8 circuit breakers slots. Most of these panels feed the customers well pumps.What are some thoughts on taping the load side of S. E. rated transfer switch to feed a whether proof sub panel.
Thinking of clear taps or bugs.Short nipple out the back of the TS into a WP sub panel for well. We are still using the 2005 NEC
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Skip Douglas SkipD
Could you please clear up what all the abbreviations mean? I cannot understand what you are asking about. Maybe you could describe what you're thinking about more completely.

Are you considering installing backup generators for mobile home sites? If so, is the idea to have one generator per mobile home?

Thanks.
Skip Douglas
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hoghead
Sorry about that: TS=Transfer switch,WP=weather Proof, Bug is a split bolt connector for splicing conductors that u wrap with rubber tape and electrical tape
Clear tap is a connector made by ISLSCO.It is an Insulated splice block with set screws for splicing conductors.
Mobile homes do not have services mounted on them.The electric meter is mounted on a pole with a service disconnect. The panel box inside the mobile home is then feed with underground 4 wire service conductors 10-80 feet away. .Most times the well pump is feed from the service disconnect panel. The service disconnect has 4 or 8 single or 2pole circuit breakers slots.
If we replace the service disconnect with a whole house transfer switch we need someway to feed the well pump.
There is enough service cable to bring into the bottom of the transfer switch but not enough to move the disconnect with out digging it up.So we were thinking of mounting a weather proof 100AMP sub-panel behind or next to the transfer switch.The sub panel would be feed with a tap from the load side of transfer switch.
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Skip Douglas SkipD
Interesting. Thanks.
Skip Douglas
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ceb58
hoghead;10630 wrote:
We have a lot of pole mounted meters with 200amp panels.They have feedthru lugs to feed the mobile home and 4 or 8 circuit breakers slots. Most of these panels feed the customers well pumps.What are some thoughts on taping the load side of S. E. rated transfer switch to feed a whether proof sub panel.
Thinking of clear taps or bugs.Short nipple out the back of the TS into a WP sub panel for well. We are still using the 2005 NEC


You can per 240.92 (D) (1-5) (2008 NEC)
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hoghead
ceb54 have you any other ideas ,beside reworking the whole service
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ohmslaw
I want Generac to put a 50 amp breaker in so we can feed a sub panel or a 4 breaker buss so I can connect to that. I have a lot of situations where I need a pass through panel.
Tim
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ceb58
hoghead;10652 wrote:
ceb54 have you any other ideas ,beside reworking the whole service




If what you have is typical of what is installed here you have a meter combo correct? If they are and I was looking to save work and $$. I would set a non-SE nema 3 rated ATS next to the meter combo. There is not a need for a SE rated switch since you have the main next to it. You all ready have 4 wire ran to the MH so pull it from the combo and move it to the ATS. Then all you need is to go from the switch back to the combo for the utility feed to the switch. Then as you wanted tap the T conductors to a 6 space panel mounted on the ATS. Run conduit back to the combo from the new panel where you can splice onto the circ. for the well pump.
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hoghead
The power co.here does not use the combo units.
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ceb58
hoghead;10659 wrote:
The power co.here does not use the combo units.


Still you have a main panel. Same difference.
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ohmslaw
Ceb58,
In most cases I want to remove the pass through panel and replace it with the SE rated switch What are the options with this scenario?
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ceb58
ohmslaw;10663 wrote:
Ceb58,
In most cases I want to remove the pass through panel and replace it with the SE rated switch What are the options with this scenario?


You could still do the tap with a small sub panel on the ATS. You could remove the old panel and replace it with a WP J-box to come from the sub panel back to it with the circ. for the well pump.
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ohmslaw
Wouldn't I need to use 200 amp wire to the sub panel? I would like to see the trasfer switch with 2 to 4 breaker slots .
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hoghead
This is were the different tap rules from the NEC come in to play I don't have my code book handy, look up taps in the NEC.
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ceb58
240.21 (B)(1)
You can use #10 to the panel as long as its not over 10ft and the load is not over 30amp.
Your wire on the 10ft tap rule is that the wire ampacity must meet or exceed the load or the main over-current protection in the panel
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ohmslaw
ceb58;10734 wrote:
240.21 (B)(1)
You can use #10 to the panel as long as its not over 10ft and the load is not over 30amp.
Your wire on the 10ft tap rule is that the wire ampacity must meet or exceed the load or the main over-current protection in the panel


I love being educated .
Thank you for the info.
Tim
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