gfci

[wendel]

do you need gfci for de-iceing equimpent,when it's a dedicated circuit. Outside

 

[Guest]

Re: gfci

What makes it dedicated?

How is it identified as dedicated?

Does the circuit terminate in a receptacle?

 

[jeff n]

Re: gfci

Check out article 426. 426.28 requires Ground fault protection for the Equipment.426.4 deals with the overcurrent and branch circuit rating.426.50 deals with disconnecting means. I don't see any mention where a dedicated outlet would let you delete the Ground fault protection for equipment.

 

[tom baker]

Re: gfci

ARTICLE 426 Fixed Outdoor Electric Deicing and Snow-Melting Equipment
426.3 Application of Other Articles.
All requirements of this Code shall apply except as specifically amended in this article. Cord-and-plug-connected fixed outdoor electric deicing and snow-melting equipment intended for specific use and identified as suitable for this use shall be installed according to Article 422.

See 426.28 Equipment Protection, for GFCI requirements.

 

[hurk27]

Re: gfci

Tom dosn't 426.28 require GFP protection not GFCI?
If so Cutler Hammer's AFCI breakers are rated at 30ma. and listed for this type of use.

 

[cripple]

Re: gfci

The NEC does not have any requirements to have any Ground-Fault Circuit Interrupter (GFCI) protection for fixed outdoor electric deicing and snow-melting equipment, but ground-fault protection of equipment (GFPE) is required as stated in Section 426.28.

426.28 Equipment Protection.
Ground-fault protection of equipment shall be provided for fixed outdoor electric deicing and snow-melting equipment, except for equipment that employs mineral-insulated, metal-sheathed cable embedded in a noncombustible medium.

Article 100 defines Ground-Fault Circuit Interrupter and Ground-Fault Protection of Equipment, which are as follows:

Ground-Fault Circuit Interrupter. A device intended for the protection of personnel that functions to de-energize a circuit or portion thereof within an established period of time when a current to ground exceeds the values established for a Class A device.

FPN: Class A ground-fault circuit interrupters trip when the current to ground has a value in the range of 4 mA to 6 mA. For further information, see UL 943, Standard for Ground-Fault Circuit Interrupters.

Ground-Fault Protection of Equipment. A system intended to provide protection of equipment from damaging line-to-ground fault currents by operating to cause a disconnecting means to open all ungrounded conductors of the faulted circuit. This protection is provided at current levels less than those required to protect conductors from damage through the operation of a supply circuit overcurrent device.

The UL white book, (2000 GENERAL INFORMATION DIRECTOPY page 29), states that Ground-Fault Protection of Equipment is intended for use in applications where ground fault protection of equipment is required by the NEC, specifically Section 426.28 and 427.22, or where such protection is deemed appropriate.
So in answer to your question: (do you need gfci for de-iceing equimpent,when it's a dedicated circuit. Outside) you are required to install Ground-Fault Protection of Equipment and there are no exceptions if the circuit is dedicated.

 

[charty]

Re: gfci

i don't have my code book with me, but I think there is an exception or FPN in art. 210 or 220, cant remember which. it states that de-icing equip. with a dedicated circuit does not require GFCI protection.

 

[tom baker]

Re: gfci

Yes correct GFCI is not required, which is 4-6 MA, but GFPE which is 50 mA. But a GFCI can be used, it may nusiance trip.