MCap

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$50 an hour/60 minutes = $0.83 cents a minute labor cost 30 seconds = $.42 per 30 seconds of effort ($50/120). So we have a labor saving of no grounding conductor handling. Even at $100 / hr it's a whopping 8'.Eight foot of effort saved per hour would be 8' of wire and pigtail of grounding counductor X perhaps 5 minutes = $8.33 saved per hour of effort saved against the whole of the project. How many J-boxes to be made up at what speed again?

The other consideration is if the billing of the MC construction is $.06 per foot for #12 EGC your talking about $0.24 per 4 foot or $6.00 per hundred feet. The manufacturer is going to pass the billing along to the EC who will charge the client.

More cheap bid strategy. By the time it fought over on a piece of paper, the fight will cost more than the EGC with the mark-up! Pull-out and where exposed to potential for pull-out exists.

I prefer having a grounding conductor, but then, that's not code, just an opinion.
 
stickboy1375 said:
I don't think i'm interested in that type of wire... IMO making up grounds dosent slow the process up... your talking what 30 seconds to strip, twist and cap.... I suppose 30 seconds times any large number will add up, but why not just tell the boys to skip coffee break... :)
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Skip coffee break!?! Heresy!
 
danam96 said:
See, this is why I need you to be gentle. At first glance it looked like an rs cover, but then I realized it is a mud ring. However, I think that if the mounting surface of the ring is flush with the surface of the wall and the receptacle yoke makes contact with it then you don't need a jumper. Somebody just slap me (gently) if I'm wrong.
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My advice to you is don't have a thin skin here...I like it when I am taken to task because I am thinking and becomming better at what I do Because of it.

As far as the egc, how many times have we come back on someone elses work and the jacket of the cable is pulled out of the clamp and the wire is 3/8'' exoposed. You can't count on the jacket as egc then.
 
Rockyd said:
$50 an hour/60 minutes = $0.83 cents a minute labor cost 30 seconds = $.42 per 30 seconds of effort ($50/120). So we have a labor saving of no grounding conductor handling. Even at $100 / hr it's a whopping 8'.Eight foot of effort saved per hour would be 8' of wire and pigtail of grounding counductor X perhaps 5 minutes = $8.33 saved per hour of effort saved against the whole of the project. How many J-boxes to be made up at what speed again?

The other consideration is if the billing of the MC construction is $.06 per foot for #12 EGC your talking about $0.24 per 4 foot or $6.00 per hundred feet. The manufacturer is going to pass the billing along to the EC who will charge the client.

More cheap bid strategy. By the time it fought over on a piece of paper, the fight will cost more than the EGC with the mark-up! Pull-out and where exposed to potential for pull-out exists.

I prefer having a grounding conductor, but then, that's not code, just an opinion.
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Must be the night of hard drinking that has clouded my brain because I haven't a clue what this means. Given a choice would you use the MC cable with an insulated EGC or the new stuff without the EGC?

I would always use the new stuff without the EGC. For two wire circuits this is a 33% savings in labor for terminations. 33% is a huge number.
 
stickboy1375 said:
Someone said MCap was the same price as MC... anyone actually price this stuff yet?
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Yes, I did. It is exactly the same price as regular MC in the same gauge. The fittings are a tad more. I expect that if this cable catches on, soon all MC fittings will be listed for use with this cable type. I'm all for labor savings, but an aluminium strip pressed against the armour on the inside does not excite me one bit as far as a reliable grounding path goes. I'm sure it's no different than type AC cable, but I don't like that either. Call me crazy or whatever. Of the 13 types of equipment grounding conductors listed in 250.118, I'd like mine to be a copper conductor when possible.
 
I really don't care for using it as the eq ground myself but the labor savings for my job will be all worth it. I think I'm running this MC with about 500+ hi-bays. This is gonna save a ton of time.
 
Shockedby277v said:
I really don't care for using it as the eq ground myself but the labor savings for my job will be all worth it. I think I'm running this MC with about 500+ hi-bays. This is gonna save a ton of time.
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Assuming you follow all the NEC installtion rules IMO this product will work fine for supplying highbays.
 
I'm a newbie here also, and I am not that excited about skipping the making up of the grounds, but if everyone went to the illustrated examples under the contractors menu, they would see that the illustrated examples show using either a ground pigtail to the box, or a listed self grounding receptacle.
 
infinity said:
Must be the night of hard drinking that has clouded my brain because I haven't a clue what this means. Given a choice would you use the MC cable with an insulated EGC or the new stuff without the EGC?

I would always use the new stuff without the EGC. For two wire circuits this is a 33% savings in labor for terminations. 33% is a huge number.
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I think the stuff has it's place. I see high bay lighting as a great use for this stuff. Be interesting to see how the AHJ's around the country will view the sum total of this in various applications.

Anywhere there is potential for pull-out, or machine vibration I would want an EGC in it.

As far as the labor savings per J-box, I think the number is a little fluffed for the actual action vs savings in pocket.I'm measuring the total against the insurance premium cost, and piece of mind.
 
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