DIYbanter - View Single Post - Using the push-in option (and no screw tighten) on outlets

Bud--

Tom Horne wrote:
wrote:
On Sun, 16 Dec 2007 06:38:33 -0700, "RJ"
wrote:

And yet, UL approves the "stab" outlets.

I would presume they do all sorts of controlled lab tests.
Their approval seal "should" be better than any folklore.

U/L listing only means the fire is constrained inside the device if it
fails, not that the device actually works.

UL listing means exactly what it says on the listing and labeling. It
complies with the standard that applies to that labeling. UL does not
write the standard they just test to the standard. If the standard is
inadequate don't blame UL.

???They are UL standards developed by or under the leadership of UL. UL
lab's reputation depends on the effectiveness of the UL standards.

Some standards may not determine if a device actually works. A lot do -
fuses, GFCIs. IIRC receptacle tests include 150% of rated current.
Receptacles should 'actually work' - except for the backstab feature. I
can't understand how that is allowed by the standard. Other than
backstabs receptacles are pretty reliable.

In addition to contact area, another problem is contact pressure.

--
bud--