Re: Causes of Ground Faults

["Stanley Barthfarkle" <sbarth@xxxxxxxxx>]

"Nomen Nescio" <nobody@xxxxxxxxx> wrote in message
news:bb4af79ebe7d1fe9ace79fab4bb8c05e@xxxxxxxxxxxx
> Stanley Barthfarkle said:
>
>>"G. Morgan" <alarmpro@xxxxxxxxxxx> wrote in message
>>news:5queo213sinvoht0po6q83osi9bq2ele6n@xxxxxxxxxx
>>> On Tue, 19 Dec 2006 05:07:04 GMT, "Stanley Barthfarkle"
>>> <sbarth@xxxxxxxxx> wrote:
>>>
>>>>>>>1)Poor workmanship. Using cutters to crimp beans leaving a gap in the
>>>>>>>insulation and the gap touching a grounded back box.
>>>>>>
>>>>>> Now, now,  Roland... no beanies on a FA!
>>>>>
>>>>> good catch,  wire nuts only, eh.
>>>>
>>>>
>>>>Solder and tape. Only way to fly.
>>>
>>>
>>> Nope, not on a fire alarm.
>>>
>>> It has to be serviceable.   No permanent connections.
>>>
>>>
>>> Ask Mike Baker for the code section , not my cup o' tea - but 'da code
>>> nonetheless.
>>
>>
>>Here in St. Louis, per the AHJ, all commercial fire systems have to have
>>accessible splices, which are required to be soldered and taped, with an
>>appropriate service loop provided. Plastic splice boxes are permitted for
>>low voltage.
>>
>>If you used wire nuts here, the AHJ would throw you off the job after he
>>finished laughing.
>
> We all know what idiots AHJs can be sometimes, but if you guys think wire
> nuts are not allowed on fire alarms, I challenge you to show me the code
> section that prohibits them.
>
> Both power wiring and fire alarm wiring are regulated by the NEC.  If UL
> listed wire nuts are acceptable for splicing light and power wiring, then
> they must also be acceptable for splicing fire alarm wiring.  Of course,
> you wouldn't use red wire nuts to splice two 18 gauge wires, but if you
> use
> the correct size, I say it's NEC  compliant.
>
> Solder and tape is also recognized by the NEC as an acceptable method of
> splicing wires.    Somebody show me where it says you can't splice fire
> alarm wire that way.
>
> I am less confident about the use of jellybeans, since I don't use them at
> all.  However, they are UL recognized, and so long as wire size
> limitations
> are not exceeded for those connectors, I suspect they are legal as well.
>
> - badenov



I certainly never said you couldn't or shouldn't use wire nuts- just that
you can't use them here on FA. Won't fly.