[time-nuts] DC distribution crimp quality

[Michael Smith]

Please note the differences between a crimped connection and  "MILITARY
SPECIFICATION" (mil-spec) crimped connections.

Most of the specifications being quoted on time-nuts are for mil-spec
quality crimped connections.  Most of the connectors hobbyist use are not
mil-spec, but generic crimp connections that do not meet mil-spec quality.
Quoting mil-spec specifications for generic crimps and connectors is like
comparing apples to oranges.

A mil-spec connector must be crimped with a routinely CALIBRATED"  crimping
tool specified by the connector manufacturer, or equal.  These crimping
tools are calibrated using dedicated procedures with go no-go gages, and  a
specified force test in a certified calibration lab.

Mil-spec crimp connectors are constructed with specific materials  to
minimize corrosion, resistance, and dissimilar metal problems.
Generic crimp connectors are constructed with unknown materials ,
resistance, and crimped with unknown crimping tools without calibration or
specifications.

Crimping or soldering can be done well, or poorly.  Workmanship is the most
important factor in a connection.  Mil-spec quality crimps minimize
workmanship errors, but are costly and require very specific processes.

I do use generic crimp connections and understand that generic crimps do
not meet Mil-spec crimp specifications.

As a radio amateur, I have chosen Anderson Power Pole connectors for 12
volt distribution.  Anderson Power Poles connectors have become the
standard for 12 volt amateur radio power distribution.  Crimped and
soldered with silver bearing solder.  There is little flexing or movement
for my applications.

Michael Smith
KB0EW