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Thread: My MEP-803a experience

  1. #41
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    Using individual conductors in a conduit is my preferred method where practical. You can't run individual conductors outside of a conduit or box. You would need to run conduit all the way to your termination box or set a junction box and transition from individual conductors to a cable that doesn't require conduit (ROMEX, UF).

    UF can be buried without a conduit if you go deep enough (usually 24" to the top of the wire). You would only need conduit where it comes up above the ground. With UF you can continue with the cable exposed once you transition to the structure. UF is NOT fun to put in conduit. WAY not fun. Getting it over a few feet to conduit to get up above the ground sin't hard.

    Using colored tape to mark load carrying phases is A-OK. Marking a black wire as a neutral is NOT OK. The neutral MUST be white or grey. Marking a black or white wire as ground is also NOT OK. The ground must be either uninsulated, green, or a solid jacket color with a continuous green stripes down its length. This rule changes when the wires are #4 or larger but for #6 you can't re-purpose a load carrying wire as a ground or neutral.

    Clear as mud!
    Chris Medico
    MEP-003a (sold), MEP-803a, MEP-802a, & MEP-831a

  2. #42
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    Starting to get an understanding for why electricians charge so much per hour.

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    Hahaha, yea. In this case you are getting a bargain. I'm an EE who is also a licensed electrician. Well, my licence hasn't been active in a long time but I have to keep up with the code since I do design work. I don't work in the field anymore.

    I have to add, you need to check with the local codes in your area and your mileage may vary.
    Chris Medico
    MEP-003a (sold), MEP-803a, MEP-802a, & MEP-831a

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    lonesouth (09-27-2016)

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    Quote Originally Posted by lonesouth View Post
    Going to go with individual feeds and ground, instead of the UF. I think it should be easier to install.

    http://www.lowes.com/pd/4-AWG-Strand...-Foot/50101584

    listed as approved for wet locations.
    Make sure that cable has a THWN rating. Many cables are dual rated as THHN and THWN. You will need the THWN rating to put it in underground conduit.
    Chris Medico
    MEP-003a (sold), MEP-803a, MEP-802a, & MEP-831a

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    • For use as THWN-2 in wet or dry locations at temperatures not to exceed 194 � Fahrenheit (90 � Celsius) or not to exceed 167 � Fahrenheit (75 � Celsius) when exposed to oil or coolant

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    Quote Originally Posted by lonesouth View Post
    • For use as THWN-2 in wet or dry locations at temperatures not to exceed 194 � Fahrenheit (90 � Celsius) or not to exceed 167 � Fahrenheit (75 � Celsius) when exposed to oil or coolant
    I saw that on the webpage. Make sure it is printed on the wire itself before you buy it. Its not a bad idea to snap a photo of the label on the side of the reel. It will have all the ratings on it. Saves trouble later.
    Chris Medico
    MEP-003a (sold), MEP-803a, MEP-802a, & MEP-831a

  8. #47
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    spent about two hours disconnecting the two units from the trailer. All of the bolts came out very easily, far easier than I expected. Got the wires unhooked from the switch box and pulled from the front generator. Checked the fluids while I was at it, diesel is fresh, oil is fresh and full. I also found original delivery document, the army spent $50,294 for this unit.

    Tomorrow, I'm building the decking this will sit on, using 4x4 and 2x6 pressure treated lumbar. Planning to put my 50 gallon fuel tank under the deck, for two reasons: 1. it will take up less space in the yard, 2. it will raise the generator up providing easier access for maintenance vs kneeling down or bending over to access stuff.
    Last edited by lonesouth; 09-30-2016 at 22:20.

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    Quote Originally Posted by lonesouth View Post
    spent about two hours disconnecting the two units from the trailer. All of the bolts came out very easily, far easier than I expected. Got the wires unhooked from the switch box and pulled from the front generator. Checked the fluids while I was at it, diesel is fresh, oil is fresh and full. I also found original delivery document, the army spent $50,294 for this unit.

    Tomorrow, I'm building the decking this will sit on, using 4x4 and 2x6 pressure treated lumbar. Planning to put my 50 gallon fuel tank under the deck, for two reasons: 1. it will take up less space in the yard, 2. it will raise the generator up providing easier access for maintenance vs kneeling down or bending over to access stuff.
    Howdy,
    I would suggest you run the unit a bunch before committing to 4x4 lumbar. You will get vibrations, and reverberation sounds which can be more than you need. Others have found by making a pad with dirt, crushed stone, and even rubber stall mats to use as a base. Look over the information about the aux fuel transfer information in the manual about height compared to the unit. There is a limit to draw height.
    ~~Later Mike

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    Guyfang (10-02-2016)

  12. #49
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    I saw in another thread referenced 6-10' rise for the Aux pump. I've got the stand built, similar to GlockFan's, but taller and using 2x6 for decking and top rails. Decided to move it around the back of the house. Pics to come.

  13. #50
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    Still need to wire it in to the house, drive a ground rod, move the fuel tank, and install some hurricane straps.

    Dropping it on the stand was more exciting that I was wanting. Shuttle shift tractor, low on hydraulic fluid and a bad check valve in the front end loader tilt. Just a little stressful.

    Generator on stand.jpg

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