On 14/08/2016 13:24, Dave Plowman (News) wrote:

I personally hate those pre-insulated Red Blue and Yellow terminals -
especially bought from an unknown source. They may be just about
acceptable where the wire size is a tight fit, but when at the other end
of the stated sizes, give an extremely poor crimp. To see what I mean do a
trial one then carefully cut off the insulation. It looks terrible. Simply
squashed like you could do with pliers. Not a proper crimp at all - to me.
Of course like all domestic wiring it may never get near its stated
maximum load. But I'd not trust it for a circuit which does.


I'm not sure I follow you: while such a crimp doesn't usually make
contact with the whole circumference of the cable , when made with a
ratchet crimper do they really give a smaller area of contact than in a
typical (eg choc strip) screwed connector?

--
Robin