[RE-wrenches] Wire nuts

Tue Sep 6 12:07:34 PDT 2016

I also concurr, NEVER use wire nuts on the roof, I've personally installed
them, and come back 3-4 years later, and found them melted. Wire nuts are
simply for insulating a splice, not to be counted on for the mechanical
connection. I make my guys twist solid wire together before installing a
wire nut. Solid to stranded is tougher, but can be done correctly.
Mike

On Tue, Sep 6, 2016 at 12:01 PM, Benn Kilburn <benn at skyfireenergy.com>
wrote:

> The reason i'm asking is that the only time i have seen a short,
> first-hand, in a wire nut, was because it appeared that one wire was pushed
> down rather than binding with the other wire, which would have happened if
> the wires were not held tightly when the nut was twisted on.  Also, it was
> a stranded wire (that was pushed down) being connected to a solid wire,
> which is acceptable, but care must be taken to do it properly.
>
> Also, on all the Ideal wire nut packages I have, the instructions say to
> twist the wire nut on until there are two visible twists in the wire.  I
> suppose this is to ensure the twist/connection is sufficient to make a
> solid connection and perhaps to keep the wires together if the wire nut is
> removed.
>
> The ones in this photo do not look like they were installed as per the
> instructions, which brings how much attention was put in to installing them
> in the first place.
>
> I've always questioned the why wire nuts are cautioned against, especially
> considering how many wire nuts are used in residential and commercial
> jobs.  I'm sure if there was a legit issue with them then insurance
> companies would insist they not be used, such as aluminum wiring?
>
> *Benn Kilburn *
> CSA Certified Solar Photovoltaic Systems Electrician, SkyFire Energy Inc
> 14515 – 121A Ave NW | Edmonton, AB | T5L 2T2
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>
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> On Tue, Sep 6, 2016 at 12:47 PM, Jerry Shafer <jerrysgarage01 at gmail.com>
> wrote:
>
>> All the other nuts are tight so l cant not say it was or not but l see
>> this alot and this was one that was caught just at the right time.
>> Jerry
>>
>> On Sep 6, 2016 8:44 AM, "Benn Kilburn" <benn at skyfireenergy.com> wrote:
>>
>>> Jerry,
>>> Can you confirm that this was caused by a failure of the wire nut,
>>> itself, and not due to user error (not properly stripping enough jacket,
>>>  inserting even length wires and sufficiently twisting on the wire nut)
>>>
>>> Benn Kilburn
>>> SkyFire Energy Inc.
>>> 780-906-7807
>>>
>>> On Sep 6, 2016, at 12:32 PM, Jerry Shafer <jerrysgarage01 at gmail.com>
>>> wrote:
>>>
>>> Wrenches
>>> Better pic
>>>
>>> On Sep 5, 2016 4:52 PM, "Jerry Shafer" <jerrysgarage01 at gmail.com> wrote:
>>>
>>>> To my fellow wrenches
>>>> It comes up every so often and with DC, I will not use, approve or pass
>>>> any wire nuts on any DC side. Some say its OK but the facts are they will
>>>> fail, this connection was just six years and when l opened the junction box
>>>> it was glowing and by the looks of it has for some time. There are 8
>>>> strings 2 per string and thats a 12.5 % failure rate (the other one was
>>>> completely distroyed) not to mention the fire hazard in a PVC junction box.
>>>> Please pass this along and tell everyone to stop using these.
>>>> Jerry
>>>>
>>> <2016-09-06 08.29.40.jpg>
>>>
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