Ed, There are a number of manufacturers that supply listed pipe clamps with attachment lugs in sizes 1/2"-12" and conductors to 1000 kcmil.
http://www.nema.org/ may be of assistance locating product. Have I seen lugs on vics ?, yes, however to the best of my knowledge this is not permitted. John -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Vining Sent: Wednesday, January 28, 2009 1:26 PM To: [email protected] Subject: Re: FW: Grounding, Bonding and Sprinkler Piping I agree, but to what should the ground/bonding wire from the riser be connected? On Wed, Jan 28, 2009 at 8:48 AM, John Drucker <[email protected]>wrote: > Ed, > > In my professional opinion I would say the riser after any backflow > devices, fire pumps, alarm and check valves, i.e. items that are > expected to be removed for repair or replacement, however the code > does not stipulate this. In all cases the electrical engineer and > local inspector are to be consulted. > > Hope that helps. > > John Drucker > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ed > Vining > Sent: Wednesday, January 28, 2009 11:13 AM > To: [email protected] > Subject: Re: FW: Grounding, Bonding and Sprinkler Piping > > John, what do you consider an appropriate place(s) to connect the > sprinkler piping to ensure a reliable connection to ground? Just > connecting it to the nearest piece of metal might not suffice. > . > Ed Vining > > > On Wed, Jan 28, 2009 at 4:48 AM, John Drucker > <[email protected]>wrote: > > > Subject: Grounding, Bonding and Sprinkler Piping > > > > > > >From an industry forum list (AFAA Firealarm). Apparently NFPA-25 > > inspectors > > (contractors) are either removing the bonding connection and or > > noting > > > it as a violation................................ > > > > John > > > > -------------------------------------------------------------------- > > -- > > ---- > > > > From: John Drucker <[email protected]> > > Subject: RE: [firealarm] Ground Rod Questions > > > > All interior water piping within a building, including metallic fire > > sprinkler piping is required to be bonded pursuant to 2008 NEC > > 250.104(A)(B) > > . > > > > Failure to bond a metallic piping system could result in the piping > > system becoming energized with the potential of shock or > > electrocution. Bonding merely places all metallic components within > > a building at equipotential.These components, water piping, gas > > piping, building steel, etc are bonded (electrically connected > > together) to > the electrical system. > > A > > properly bonded system assures a low impedance electrical path > > exists should a fault occur producing the needed fault current in > > order to operate a circuits overcurrent device thus clearing the > > fault by deenergizing the circuit. > > > > Grounding on the other hand is the connection of the buildings > > electrical system to earth in order to dissipate lighting, > > transients and stabilize system voltage. Grounding is not Bonding. > > The sprinkler piping prohibition applies to the use of fire > > sprinkler piping as a Grounding electrode. Its important that we not > > remove bonding jumpers from aboveground fire sprinkler piping. If > > you're not sure consult with your electrical inspector. In the end > > it might just save someone's life ! > > > > Sincerely, > > > > John Drucker > > > _______________________________________________ > Sprinklerforum mailing list > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > For Technical Assistance, send an email to: > [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%3ASprinklerforum-reques > [email protected]> (Put the word unsubscribe in the subject field) > > CONFIDENTIAL AND PROPRIETARY: > This email message is intended only for the use of the individual or > entity to which it is addressed and may contain information that is > privileged and confidential, nor is it, unless specifically stated, > intended to be relied upon by any person or persons other than the > individual or entity named above and no warranties or representations > are made or intended to persons or entities not named above. If the > reader is not the intended recipient, you are hereby notified that any > dissemination, distribution or copying of this communication is > strictly prohibited. If you have received this communication in > error, please notify us immediately by telephone, return this message to the address above and delete all copies. Thank you. > > _______________________________________________ > Sprinklerforum mailing list > http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum > For Technical Assistance, send an email to: > [email protected] > > To Unsubscribe, send an email > to:[email protected]<to%3ASprinklerforum-reques > [email protected]> (Put the word unsubscribe in the subject field) > -- Ed Vining 4819 John Muir Rd Martinez CA 94553 925-228-8792 _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
