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Old 06-22-2011, 06:59 PM
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Inspired Inspired is offline
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Best practice for control wire connections

Some discussion over Dry-splice and King pre-filled wire nuts got me thinking.

Exactly what is the accepted best practice for installing a wire connection?

Is it acceptable to direct bury a control wire connection, splice or branch?



As repair guys we get to see everyone weakest links. Over the years I have dug up numerous failed wire connections that were direct buried. So I'm curious if anyone has bothered to print some best practices regarding installation and repair techniques.

I searched the IA site and didn't find much on the topic.
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Old 06-22-2011, 07:18 PM
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Mike Leary Mike Leary is offline
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Nice shoe shot, Billy. King "blues" for solenoid valve boxes (they make a better version that does not dry-out, now) and 3M DBY/DBR/DBX connectors for direct-buried splices when I knew (hopefully) I'd not be back. Any wires direct buried were always spotted in a valve box below grade.
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Old 06-22-2011, 07:43 PM
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Sprinkus Sprinkus is offline
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I'll direct bury common splice tees and single wire repairs.
Any major splice or repair involving multiple wires go in valve boxes.
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Old 06-22-2011, 07:48 PM
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Mike Leary Mike Leary is offline
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Quote:
Originally Posted by Sprinkus View Post
I'll direct bury common splice tees and single wire repairs.
I've never believed in direct burial, per se. And with the millions of 6" pits sold in Texas, I'd think you would sacrifice a lowly 6" to mark the splice.
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Old 06-22-2011, 08:00 PM
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Wet_Boots Wet_Boots is offline
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I only bury fully potted crimp or wire nut connections, and then, reluctantly.
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Old 06-22-2011, 08:04 PM
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FIMCO-MEISTER FIMCO-MEISTER is offline
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If i think its a one time deal then I'll bury the splices. If i think I'll have more issues then I'll box them. I always box redos at the entry into the garage. Common sense dictates but I'm far more comfortable burying 14ga single strand splices than jacketed multistrand.
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Old 06-22-2011, 08:12 PM
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Inspired Inspired is offline
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Quote:
Originally Posted by Mike Leary View Post
Nice shoe shot, Billy. King "blues" for solenoid valve boxes (they make a better version that does not dry-out, now) and 3M DBY/DBR/DBX connectors for direct-buried splices when I knew (hopefully) I'd not be back. Any wires direct buried were always spotted in a valve box below grade.
Some sort of Columbia sneakers. Got'm at an overstock store. Very good to walk in.

I'm working through a multiple fault issue with a system here and there are numerous "T" and branches in the two commons that run the length of the system. Lots of old yellow crimp nuts with tape, Dry-Splice and King nuts that are direct buried.

It's 115 here today and I'm beginning the think maybe never direct bury a splice ever again. As an installer, I never did. It wasn't that hard to put the splices in a valve box where they could be ID'd and serviced. Sure you end up with some short lengths of wire, but so what?
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Old 06-25-2011, 12:30 PM
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CAPT Stream Rotar CAPT Stream Rotar is offline
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my old boss loved those heat shrink packages..

wicked sweet..
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Old 06-25-2011, 06:00 PM
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rlpsystems rlpsystems is offline
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We've all come around nightmares like that.....I say if its the whole wire spliced (as in 18/whatever/500 put it in a box. Twist those wires to much and you'll be looking for a bad splice after the first rainy season......I like lots of slack in a box ( ha ha thats what she said) enough to pull up and inspect......again thats what she said..........
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  #10  
Old 06-26-2011, 08:22 AM
koster_irrigation koster_irrigation is offline
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No more king wire nuts for me.

See lots fail that i have installed within the last 5 yrs, and will continue to fail.

Seems that the white compound they used there for awhile drys out within a couple of yrs. And then the wire nut begins to "rust up" and electrical connections are lost.

3M DBRY 6 is now what i use for all connections.
Comes around full circle, dbr and dby's are what i started in the business with and switched to king for cost savings,
boy was that a mistake.
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