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Socapex wiring

Discussion in 'Lighting and Electrics' started by Dustin Druckman, Apr 16, 2019.

  1. Dustin Druckman

    Dustin Druckman Member

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    I am trying to covert a few stage pin drop boxes to socapex ends so that i do not need to haul these giant boxes up and down when tours come in. I opened the box up though and there is only one ground wire running in the cable and it is going to a bar in the box that the ground for each circuit is coming back to. my question is how should i run this single ground into the socapex end? do i just solder jumpers to a single point and then attach the ground to that?
     

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  2. Ancient Engineer

    Ancient Engineer Well-Known Member

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    I guess I need some clarity, but I will provide both cases that I can divine...

    Iif you are putting a Socapex male panel connector on the box to replace the cable... (I am assuming a 19pin)
    You'd take the ground leads from the common bar and route them to the connector on pins 13-18 respective to their hot/neutrals.

    Like:
    Circuit 1 = 1h,2n,13g
    Circuit 2 = 3h,4n,14g
    Circuit 3 = 5h,6n,15g

    ...and so on for the remaining 3 circuits.

    If you are trying to add a Socapex male connector to the end of the existing cable, you should replace the cable to keep the integrity of the individual grounds. (unless there are 5 unused leads in the current cable...)
     
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  3. Ancient Engineer

    Ancient Engineer Well-Known Member

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    Furthermore, you could use a grounding ring and two leads in the cable for grounding.

    However, I am not a fan of bonded grounds in Socapex.

    My old-person sensibilities say: "well, they gave us the chance to have independent grounds..."
    Just my .02
     
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  4. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    The single ground wire would be connected to a ground ring which then connects to contacts 13-18. https://www.controlbooth.com/threads/photos-of-socapex-ground-ring.25756

    Pretty sure you'll find that the vast majority of "Socapex -style" cable is 14 conductor, not the expected 18 or 19. Wires 13 & 14 are both connected to pins 13-18 via ground ring as above.

    Side note: Installing Socapex connectors is not for the inexperienced, especially in the field. You might find it prudent to buy 12/14 cable with one bare end and one female 19-pin pre-installed. Then it's a matter of landing the bare wires inside the grid box, and strain relief.
     
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  5. Dustin Druckman

    Dustin Druckman Member

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    I’m not doing anything with the box. It is going away. I am just using the cable from it to connect to a female Socapex.
     
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  6. Dustin Druckman

    Dustin Druckman Member

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    I have done this plenty of times I have just never come across a wire with only 13 leads. I usually see at least 2 grounds and then use a ground ring and I was clarifying if I should do something different with only 1 ground.
     
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  7. Ancient Engineer

    Ancient Engineer Well-Known Member

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    I have not seen one with only 13... But I have not been everywhere. Is the ground lead 10 gauge?

    I have seen the 14/12s and 19/12s...
     
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  8. josh88

    josh88 Remarkably Tired. Premium Member Fight Leukemia

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    We have a similar problem a little more north of you. we've got Drop boxes, that we usually have to drop for the roadshows (because we need the pick points) but ours are just run up to points on the grid to drop in an out. The other side of the stage though has soca runs instead of boxes and those we can just extend or add breakouts to as needed.

    The pick points/pulleys make it pretty easy to move our boxes around, most of the weight really comes from all the cable you're moving, the dropbox itself is fairly negligible for us really. I talked to Devon and really do just need to get down there and see how you guys do things compared to how we do. I have a lot of changes I'd like to make.
     
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  9. DavidJones

    DavidJones Active Member

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    What does the jacket say? Are you sure it's not 14 wire and one is just clipped off right at the jacket? A ground ring on soca works fine and is the most common, but there really should be 2 ground wires.
     
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  10. Amiers

    Amiers Renting to Corporate One Fixture at a Time.

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    Where do these boxes live that you have to haul them up and down.

    I would suggest getting some fanouts and some soca cable and dropping picks from their location.

    Taking that cable and making into a soca is going to be more of a pain than you think. And done wrong could result in damaged equipment or shock.

    TLDR: buy the proper cable.
     
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  11. STEVETERRY

    STEVETERRY Well-Known Member

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    Note that NEC does not require two grounding conductors:

    250.122(C) Multiple Circuits. Where a single equipment grounding
    conductor is run with multiple circuits in the same raceway,
    cable, or cable tray, it shall be sized for the largest overcurrent
    device protecting conductors in the raceway, cable, or cable
    tray. Equipment grounding conductors installed in cable trays
    shall meet the minimum requirements of 392.10(B)(1)(c).

    ST
     
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  12. derekleffew

    derekleffew Resident Curmudgeon Senior Team Premium Member

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    Looking more closely at the photo...
    There appears to be a red wire from the borderlight cable not doing anything, laying on the bottom of the box, so maybe it is 14 conductor.
    Further, what does code say about wire color? The left-most 2P&G outlet is wired with three greens! The right-most outlet uses white for both neutral and hot.
     
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  13. BillConnerFASTC

    BillConnerFASTC Well-Known Member

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    There is a black tracer on one of those whites. Guessing this was Strand originally - and consulted on by my former employer.
     
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  14. STEVETERRY

    STEVETERRY Well-Known Member

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    Here's what the code says about color. This is a relaxing of the Chapter 1 through 4 color requirements, since high conductor-count multiconductor cables don't have enough whites and greens to meet the general code requirements.

    520.44 Borders, Proscenium Sidelights, Drop Boxes, and
    Connector Strips.


    (3) Identification of Conductors in Multiconductor Extra-
    Hard-Usage Cords and Cables.
    Grounded (neutral) conductors
    shall be white without stripe or shall be identified by a
    distinctive white marking at their terminations.
    Grounding
    conductors shall be green with or without yellow stripe or shall
    be identified by a distinctive green marking at their terminations
    .

    ST
     
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