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Old 09-17-2013, 10:01 AM   #61
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The inspectors around here will fail if the romex in that picture has any conductors inside the sheath, cause they feel that it creates a transformer coil wrapped around the other cable like that once the current flows in the ser......
Electrical theory be dammed!
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Old 09-17-2013, 12:02 PM   #62
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It's easily tested for output, isn't it? I'd also like to see what article that violates.

Again, for the other naysayers, the point wasn't whether it was pretty or the best method, or recommended. They point was that it's NEC compliant, which it was claimed to not be.
I totally get the point , but my point was most of us won't be using what's mostly considered " trash " to strap cable , Legal or not . Another area of the NEC that can stand tightening up IMO .
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Old 09-17-2013, 12:08 PM   #63
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Electrical theory be dammed!
If it were to induce with a single turn, it would have to be current in one direction only in the cable supplying the load. Most ser I run has a neutral in it so there would be cancellation anyway. This might be worthy of a field mactesting to lay the whole stupid to rest...... Ct and recording device on pipe strap.......
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Old 09-17-2013, 12:11 PM   #64
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Whats the difference between the romex twisted around the SER and a bridle ring?
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Old 09-17-2013, 12:13 PM   #65
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Hax, I like your bridal ring thing. I have been sitting on two boxes of them for about a quarter of a century. Next old house rewire the subfeeder for the load centers run underneath the crawlspace is getting bridal rings.
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Old 09-17-2013, 12:24 PM   #66
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Hax, I like your bridal ring thing. I have been sitting on two boxes of them for about a quarter of a century. Next old house rewire the subfeeder for the load centers run underneath the crawlspace is getting bridal rings.
Did 3" bridals in my house... Old hand hewn 8" logs, i wasnt drilling them so i tucked rings against the outside wall
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Old 09-17-2013, 12:26 PM   #67
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Hax, I like your bridal ring thing. I have been sitting on two boxes of them for about a quarter of a century. Next old house rewire the subfeeder for the load centers run underneath the crawlspace is getting bridal rings.
Do you have the kind that hang from clips? If you have the ones that thread into wood, then that could be more work than it's worth unless you make a drill attachment so you could drive them in with the drill.


I've been threading an eye-bolt into my drill and using it to screw the service drop POA hook into houses that way, works really well for lazy bums like me.
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Old 09-17-2013, 12:31 PM   #68
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Whats the difference between the romex twisted around the SER and a bridle ring?
price, and securly support versus just supported
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Old 09-17-2013, 12:37 PM   #69
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price, and securly support versus just supported
My post was in reference to the induced voltage that Mike was talking about.
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Old 09-17-2013, 12:52 PM   #70
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Whats the difference between the romex twisted around the SER and a bridle ring?
For starters , a bridle ring is not a complete enclosed metallic circle around the wire , its an open loop , secondly the chances of inducing anything even readable , I'd say are slim to none . The way that Romex support completely wrapped the SER , maybe would make a difference , but I doubt it ? I wasn't as concerned with induced voltage as I was aesthetics . If there's no wire in the Romex jacket , it's still ugly , but certainly nothing else to worry about .
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Old 09-17-2013, 12:56 PM   #71
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I dunno, a bridle ring seems to be very similar to the wrap of romex...


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Old 09-17-2013, 03:26 PM   #72
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Another area of the NEC that can stand tightening up IMO .
Why would the NEC need to be tightened up?

The purpose of the NEC is safety, not esthetics.

The NM strap is strong and has much less chance of damaging the cable than a metal staple.
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Old 09-17-2013, 03:28 PM   #73
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If it were to induce with a single turn, it would have to be current in one direction only in the cable supplying the load. Most ser I run has a neutral in it so there would be cancellation anyway. This might be worthy of a field mactesting to lay the whole stupid to rest...... Ct and recording device on pipe strap.......
That's the thing, we are encircling an entire circuit, not a single conductor.

Ask the inspector what the reading on an amp clamp would be if the put it around the cable.
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Old 09-17-2013, 05:06 PM   #74
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Whats the difference between the romex twisted around the SER and a bridle ring?
The Romex is worth more, it's copper!
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Old 09-17-2013, 05:13 PM   #75
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That's the thing, we are encircling an entire circuit, not a single conductor.

Ask the inspector what the reading on an amp clamp would be if he put it around the cable.
Another issue is that the wrap is of a non-ferrous material, so they can't claim eddy current heating.
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Old 11-22-2017, 10:33 PM   #76
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Fascinating stuff. Good thread.
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Old 11-22-2017, 10:35 PM   #77
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Fascinating stuff. Good thread.
Do you like doing the screwing? Or the other way around?
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Old 11-23-2017, 06:54 AM   #78
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The investment that keeps giving. It takes a little longer even with the right drill( a superhogg) but less hardware to purchase and a cleaner job.
then you hit a nail and... . then another and then your progress comes to an end. Used a 2" the other day ,which I thought was destroyed, but was in excellent condition and worked great.
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Old 11-23-2017, 07:01 AM   #79
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Two-hole PVC straps.

called Handy Straps with nails ready to go by Sturgeon Bay Metal Products
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