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Topic Title: Maximum Earth Loop Impedance Values For Common Devices
Topic Summary: What About the Uncommon Devices
Created On: 02 February 2017 11:19 PM
Status: Read Only
Linear : Threading : Single : Branch
 Maximum Earth Loop Impedance Values For Common Devices   - keithredpath - 02 February 2017 11:19 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - Legh - 02 February 2017 11:36 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - alancapon - 03 February 2017 12:14 AM  
 Maximum Earth Loop Impedance Values For Common Devices   - leckie - 03 February 2017 07:17 AM  
 Maximum Earth Loop Impedance Values For Common Devices   - John Peckham - 03 February 2017 11:32 AM  
 Maximum Earth Loop Impedance Values For Common Devices   - keithredpath - 09 February 2017 06:11 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - weirdbeard - 19 February 2017 07:45 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - mapj1 - 19 February 2017 11:16 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - sparkingchip - 26 March 2019 10:40 PM  
 Maximum Earth Loop Impedance Values For Common Devices   - Alcomax - 27 March 2019 02:03 PM  
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 03 February 2017 12:14 AM
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alancapon

Posts: 7492
Joined: 27 December 2005

. . . when I come across "Uncommon" devices usually just enter "A Limitation" on my Report.

However a client has insisted all these values appear on his report. . .

I think I would want these completed too. Most manufacturers have the data sheets for the devices available on their websites. I have always understood that "limitations" should be agreed with the client.

Regards,

Alan.
 03 February 2017 07:17 AM
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leckie

Posts: 4705
Joined: 21 November 2008

It depends what model forms you use. The model forms in BS7671 don't have a column for the maximum permitted Zs. Nor do ECA model forms. The NICEIC ones do.
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