The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Looking for older post
by Trumpy
16 minutes 16 seconds ago
Last time to chat here
by Trumpy
Yesterday at 11:41 PM
Unsafe Situations
by Trumpy
Yesterday at 09:46 PM
Safety at heights?
by Trumpy
Yesterday at 09:13 PM
Webmaster > Admin
by Trumpy
Yesterday at 08:29 PM
New in the Gallery:
Desk-mounted "power-board"
Shout Box

Top Posters (30 Days)
Admin 35
HotLine1 20
Trumpy 19
Ruben Rocha 17
gfretwell 15
Who's Online
1 registered (Trumpy), 160 Guests and 11 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#11552 - 07/15/02 01:20 PM Zinc water clamp?
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Copper GEC, copper water line. Are zinc-alloy clamps OK?
The last few times I ordered clamps from the supply house, they sent zinc. I prefer brass.
Anyone?

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#11553 - 07/15/02 01:44 PM Re: Zinc water clamp?
Joe Tedesco Offline
Member

Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
_________________________
Joe Tedesco, NEC Consultant

Top
#11554 - 07/16/02 04:08 AM Re: Zinc water clamp?
Redsy Offline
Member

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA
Thanks, Joe.
The page doesn't state conductor material compatibilities, but I spoke to my supplier and got the box for the zinc clamps, which shows use for copper conductors and either copper or galvanized pipe.
I have seen what appeared to be these zinc clamps corrode badly when attached to a copper water line, but my supplier said that aluminum clamps are, or were, available. Maybe aluminum is what I saw

Top
#11555 - 07/16/02 05:20 AM Re: Zinc water clamp?
Bill Addiss Offline
Member

Registered: 10/07/00
Posts: 4196
Loc: NY, USA
Redsy,

Our Utility "Red Book" (Guidelines) recommend that zinc-coated, steel type connector be used only on Iron water pipe.

Bill

Top


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals