What AWG for 120 V inlet?

[GordMay]

See DIAGRAM 1*, [and E-11.17.1], excerpted from the Out of Date 2008 version of ABYC ‘E-11' AC and DC ELECTRICAL SYSTEMS ON BOATS

* Single Phase 120-Volt Systems with Shore-Grounded (White) Neutral Conductor and Grounding (Green) Conductor.
Page 33 ➥ http://www.blackfinforums.com/sites/.../abyc-e-11.pdf

[team karst]

I believe those white toggles are all breakers.

[GordMay]

Indeed.
Note: The 2P Main 120VAC Breaker - bur NO 12VDC Main Brkr.

[s/v Jedi]

Originally Posted by GordMay

Indeed.
Note: The 2P Main 120VAC Breaker - bur NO 12VDC Main Brkr.

Yes, that is the required elci breaker. Because it is more than 10’ away from the shore power inlet, an additional breaker is installed closer to the inlet so as to comply with ABYC.

[BAD ORCA]

Originally Posted by GordMay

See DIAGRAM 1*, [and E-11.17.1], excerpted from the Out of Date 2008 version of ABYC ‘E-11' AC and DC ELECTRICAL SYSTEMS ON BOATS

* Single Phase 120-Volt Systems with Shore-Grounded (White) Neutral Conductor and Grounding (Green) Conductor.
Page 33 ➥ http://www.blackfinforums.com/sites/.../abyc-e-11.pdf

It appears from the second diagram i have to reverse my breakers putting the ELCI first after shore power, then the second double pole at the distribution panel.

[BAD ORCA]

Originally Posted by GordMay

Indeed.
Note: The 2P Main 120VAC Breaker - bur NO 12VDC Main Brkr.

Thanks GordMay. I think i need to re-read E-11 again. Its been a while since I did. The 12 volt side currently has no main breaker. The DC side of the panel will be fused before it connects to the DC and there is the 1,2,Off switch on the DC side at the distribution panel as well as an ON/OFF switch between the battery and the main busbar.

E 11.10.1.4.3 makes an exception for a breaker if there is a fuse of 100% rating at the source of power which i would assume is the positive DC busbar thats connected to my lithium house bank. I would interpret that to mean that i need a fuse between the positive busbar and my DC distribution panel that is rated to accept 100% of the DC load current as well as a fuse between the battery and the busbar which i will have (class T 400 amp).

I think im interpreting this correctly.

[s/v Jedi]

Originally Posted by BAD ORCA

It appears from the second diagram i have to reverse my breakers putting the ELCI first after shore power, then the second double pole at the distribution panel.

If youbring the elci to within 10’ of the inlet, you don’t need the other breaker at all.

But because the elci is more than 10’ from the inlet, you have an additional breaker within 10’ of the inlet. This is specifically mentioned in E11 as a workaround.

[sinnerman]

Originally Posted by BAD ORCA

Thanks God. I think im good and wont have to trim anything. I can get 8 gauge ring terminals or even power lugs to fit everything except possibly the shore power inlet plug as you mentioned. I will have to double check my power cord inlet and see if i can make it work without trimming any wires.

I used 10 ga. - Ancor marine wire (triplex blk-wht-grn)

30 amp service

Run is about 08-10 feet from shore connector on boat to main panel

Also installed new shore power connector and galvanic isolation diode on green wire at same time

cheers.

[drdoyle]

Originally Posted by s/v Jedi

I use 8 AWG for 30A circuits and 6 AWG for 50A circuits.

It is true that 10 AWG can do a 30A circuit but after the shore cables, which are long and 10 AWG as well as questionable outlets/inlets/plugs, creating a low resistance path inside the boat is simple.

Plus 1

[Ahmet Erkan]

Originally Posted by GordMay

See DIAGRAM 1*, [and E-11.17.1], excerpted from the Out of Date 2008 version of ABYC ‘E-11' AC and DC ELECTRICAL SYSTEMS ON BOATS

* Single Phase 120-Volt Systems with Shore-Grounded (White) Neutral Conductor and Grounding (Green) Conductor.
Page 33 ➥ http://www.blackfinforums.com/sites/.../abyc-e-11.pdf

Hello Gord,
If you have access to the latest revision of ABYC-E11 would you please check to see if ABYC corrected the ELCI application error?
The 2008 version of ABYC-E11 that you sent a link to, shows five diagrams for wiring an isolation transformer along with an ELCI device (on pages 36 through 41) in these diagrams the transformer makes the ELCI device unable to detect a current unbalance and the ELCI will just sit there doing nothing during a ground fault event at the transformer secondary. I explained all this to the ABYC engineer in a written change request in 2018. In the mean time people using out of date ABYC-E11 as a guide to install isolation transformers should question Diagrams 5 through 9 in the link you sent. An ELCI device at the primary of a transformer as shown in diagrams 5 through 9 cannot sense a ground fault at the secondary.

[GordMay]

Originally Posted by Ahmet Erkan

Hello Gord,
If you have access to the latest revision of ABYC-E11 would you please check to see if ABYC corrected the ELCI application error? ...

Sorry, I do not have access.

[Ahmet Erkan]

Originally Posted by GordMay

Sorry, I do not have access.

Thank you anyway Captain.
How does a boater get (buy) a copy of a ABYC standard?
The ABYC requires you to be a business owner, ABYC trained technician, manufacturer, student etc. Just about anybody but an ordinary sailor.

[boatpoker]

Originally Posted by Ahmet Erkan

Thank you anyway Captain.
How does a boater get (buy) a copy of a ABYC standard?
The ABYC requires you to be a business owner, ABYC trained technician, manufacturer, student etc. Just about anybody but an ordinary sailor.

Join under the business category as "Ahmet's Boats"

or take the on-line course as a non-member and get access to all electrical standards. https://abycinc.org/events/EventDeta...1793487&group=