Graham_Wright
Well-Known Member
Stainless steel;- not a great conductor.
Brass;- dezincifies
Copper;- oxidises.
What does the forum recommend?
Brass;- dezincifies
Copper;- oxidises.
What does the forum recommend?
Terminal posts.
- Thread starter Graham_Wright
- Start date
rob2
Well-Known Member
Depends what you mean by terminal posts. Unless it's underwater, the brass will not dezincify and copper can be amply protected by a smear of Vaseline after making the connection. Stainless may not be a good conductor, but if the wires are terminated with a washer type crimp, then they will make contact with each other and that has proven effective.
Rob.
Rob.
vyv_cox
Well-Known Member
I don't think I have ever seen a stainless steel one. Most of mine are either galvanised or plated steel. One or two brass ones around, I think. All are perfectly OK after years of use, even without the Vaseline provided you mop up any acid or water spillages.
Graham_Wright
Well-Known Member
[ QUOTE ]
Depends what you mean by terminal posts. Unless it's underwater, the brass will not dezincify and copper can be amply protected by a smear of Vaseline after making the connection. Stainless may not be a good conductor, but if the wires are terminated with a washer type crimp, then they will make contact with each other and that has proven effective.
Rob.
[/ QUOTE ]
I have been nervous of brass ever since unscrewing some cabin fittings where the screws had turned to copper! Needless to say, most sheared. I suppose the salt laden atmosphere ws to blame.
Depends what you mean by terminal posts. Unless it's underwater, the brass will not dezincify and copper can be amply protected by a smear of Vaseline after making the connection. Stainless may not be a good conductor, but if the wires are terminated with a washer type crimp, then they will make contact with each other and that has proven effective.
Rob.
[/ QUOTE ]
I have been nervous of brass ever since unscrewing some cabin fittings where the screws had turned to copper! Needless to say, most sheared. I suppose the salt laden atmosphere ws to blame.
pvb
Well-Known Member
Let's assume you're talking about what are often called "post connectors", like the picture below. Stainless steel is fine - strong, won't corrode or disintegrate. Conductivity isn't important.
If you're not talking about these, it would help if you clarified your original question.
If you're not talking about these, it would help if you clarified your original question.
pampas
Well-Known Member
Maplin`s used to do gold plated clamps, Personally I like the pillar type because eyelets can be removed or added without removing the main connections.
Graham_Wright
Well-Known Member
[ QUOTE ]
Let's assume you're talking about what are often called "post connectors", like the picture below. Stainless steel is fine - strong, won't corrode or disintegrate. Conductivity isn't important.
If you're not talking about these, it would help if you clarified your original question.
[/ QUOTE ]
Point taken but then when one generates a post, one's mind is always crystal clear!
To clarify. If the post accepts connections stacked on top of each other, then the contacts are made on the inter connection interfaces. If however, the post is used to connect between the top and bottom of (say) an insulating plate (so that cables can be connected top and bottom) then conductivity is an issue.
As usual, the forum has come up with the goods. I shall use copper tinned I think. That would raise the corrosion resistance to the same as the cables and terminals.
(Just for interest;- I needed to make four connections to a Sterling charger and use the same location for supplies for the rest of the "ship". Charger horizontal; cables approach from underneath vertically; ship's supplies exit horizontally. Solution was to bring the cables up under an HDPE plate and connect to studs underneath on a 45° angle then connect left horizontally to the charger and right to the ship on the top of the plate. (A picture's worth a thousand words and all that!)
Let's assume you're talking about what are often called "post connectors", like the picture below. Stainless steel is fine - strong, won't corrode or disintegrate. Conductivity isn't important.
If you're not talking about these, it would help if you clarified your original question.
[/ QUOTE ]
Point taken but then when one generates a post, one's mind is always crystal clear!
To clarify. If the post accepts connections stacked on top of each other, then the contacts are made on the inter connection interfaces. If however, the post is used to connect between the top and bottom of (say) an insulating plate (so that cables can be connected top and bottom) then conductivity is an issue.
As usual, the forum has come up with the goods. I shall use copper tinned I think. That would raise the corrosion resistance to the same as the cables and terminals.
(Just for interest;- I needed to make four connections to a Sterling charger and use the same location for supplies for the rest of the "ship". Charger horizontal; cables approach from underneath vertically; ship's supplies exit horizontally. Solution was to bring the cables up under an HDPE plate and connect to studs underneath on a 45° angle then connect left horizontally to the charger and right to the ship on the top of the plate. (A picture's worth a thousand words and all that!)