Did a bit of digging today.

[nick182]

wish i could see the pic.. how come its been moved?

 

[Bobster]

Didn't realise it had moved. Must be something with my photobucket. I'll sort it tonight.

 

[eletricaz]

One thing I do like is the lugs are sweated brass. It’s awhile since I’ve done them!

Hi all im currently a spark at a prison and im hv authorised too don't do any real switching as we only switch in a real.emergency situation mostly all switching is done by contractors and also any new cable runs and terminations my question is to tony what is a sweated brass lug?

Sent from my GT-I9100 using Tapatalk

 

[Knobhead]

From the OED, definition 5
View attachment 10682

 

[Knobhead]

wish i could see the pic.. how come its been moved?

To put you out of your misery, I saved it.
View attachment 10683

 

[Engineer54]

Hi all im currently a spark at a prison and im hv authorised too don't do any real switching as we only switch in a real.emergency situation mostly all switching is done by contractors and also any new cable runs and terminations my question is to tony what is a sweated brass lug?

Sent from my GT-I9100 using Tapatalk

Basically a sweated lug is one where the conductor has been soldered to the termination lug, by means of a blow tourch, as opposed to being cold crimped to the lug. You cannot crimp a brass solder lug. This was once the Only method of cable lug connection, or come to that, jointing of any large cables, be they at switchboards or cable joints. Soldered connections and terminations are not seen very often these day's, except at existing older installations....

Also once, the defining factor of being an electrician was how well you could solder a joint or termination. Looks easy enough, but in fact is a skill to do well, especially when dealing with high current joints and terminations.... Now a lost skill, like so many others!! ...lol!!!

 

[Knobhead]

It’s over 20 years since I last did any. Then I got dropped in the deep end. I got a phone call to go to another plant to sweat some lugs on. Your OK we’ve got everything ready for you. What they didn’t tell me there was 56 600mm’s to do! The cables weren’t the only things that got sweated, I was wringing wet after the first hour!

It’s something I’d like to pass on to an apprentice but I can’t see it happening. It’s still possible to get the required tapes, they cost a fortune.

 

[johnboy6083]

I was taught to silver solder and braze when i was training as an electrician in the Army. Havent done it since then, but i think i would soon pick it up again. If i remember correctly, its all about getting the heat right (cherry red) and the correct application of the flux.