Developed during the heyday of the telegraph, the Lineman’s splice is designed for connections that will be under tension. It is commonly claimed that, properly made, a Lineman’s splice is stronger than the wires of which it is composed. In any case, it is a time-proven method, and, coolest of all, one of NASA’s Required Workmanship Standards. To wit, in a NASA-approved Lineman’s splice:
- The conductors shall be pre-tinned.
- There shall be at least 3 turns around each conductor and the wraps shall be tight with no gaps between adjacent turns.
- The wraps shall not overlap and the ends of the wrap shall be trimmed flush prior to soldering to prevent protruding ends.
- Conductors shall not overlap the insulation of the other wire.
Though the Lineman’s splice was originally used without solder, today soldering is common. And NASA insists on it:
- Solder shall wet all elements of the connection.
- The solder shall fillet between connection elements over the complete periphery
of the connection.
This material comes from page 84 of NASA-STD 8739.4 (PDF), which is a great reference if you’re interested in best practices for interconnecting cables and wires.
HF/6m linear amplifier 2400W MRF1K50H 2 pcs water cooling system 5″ LCD touch screen for N0JSN Read more
NooElec have recently released a new LNA + filter combo called the “SAWbird+ H1 Barebones” which significantly lowers the entry bar for ne... Read more
The 34th meeting of the Inter-American Telecommunication Commission (CITEL) Permanent Consultative Committee II (PCC.II) concluded a week of meetings... Read more
Following the direction of the ARRL Board of Directors, ARRL has incorporated changes to the rules for all ARRL-sponsored contests and DXCC, prohibiti... Read more
As announced in September 2019 QST – page 86 This year marks the 150th anniversary of the birth of the League’s first president and... Read more
Sweden’s Alexanderson Alternator station SAQ says it received 438 listener reports — “an incredible amount” — for its June 30 Alexanderson Day transmi... Read more
“The Baofeng UV5R. Some have called them the savior to ham radio and others say they are nothing but a scourge to the hobby. But one is for sure... Read more
This is a demonstration of the new version of the AnyTone AT-D878UV PLUS with Bluetooth and PTT remote. Read more
“The Legendary G5RV Antenna” is the topic of the new (August 15) episode of the ARRL The Doctor is In podcast. Listen…and learn! Read more
This 4th version of the QRP UltraLight MLA antenna has the same foldable construction designed for easy carry in a common laptop bag same as the 3rd v... Read more