Is this copper only?

[Sea Nile]

un the field right now,. We grabbed a split bolt to extend a ground in a panel that was cut too short. Instead of just blindedly usung it, I looked to see if we could use it for aluminum wire. I don't think we can

 

[electrofelon]

I always assumed it the ones with divider were for AL, but it does appear to just say CU

 

[electrofelon]

But found this on the web:

Description
Blackburn 350HPS 350 Aluminum/Copper Split Bolt
Technical Description: Split Bolt Type; Electrolytic Tin Plated Copper Spacer, Tin Plated Copper Alloy Bolt/Pressure Bar Material; 1/0 AWG Stranded, 1/0 AWG (ACSR) min. Run Conductor Size; 350 kcmil, 266.8 kcmil (ACSR) Max. Run Conductor Size

UPC: 78378685508

Part Number: 350HPS

Manufacturer: BLACKBURN

 

[augie47]

https://objects.eanixter.com/PD471768.PDF

 

[Fred B]

The connector would have Al, Al/Cu if it was suitable for Aluminium conductors. The one shown seems to be listed only Cu, and not usable on Aluminium wire.
Regardless of what box or mfg might print in publications inspector might call it out.
Been finding a lot of items that packaging is not matching product inside of package. (A whole case of receptacles package marked as TR but the product was not marked or even had the TR shutters.)

 

[Sea Nile]

I was told to use it. Got pics I'll post later at lunch

 

[roger]

If I were an inspector I would reject it for use with Aluminum.

 

[Sea Nile]

All the pics

 

[norcal]

Always considered the brass/bronze split bolts copper only & the plated or aluminum one if so marked being AL/CU.

 

[Hv&Lv]

un the field right now,. We grabbed a split bolt to extend a ground in a panel that was cut too short. Instead of just blindedly usung it, I looked to see if we could use it for aluminum wire. I don't think we can

Nope.
See here:

 

[Sea Nile]

Nope.
See here:

I'll bring the issue up with the office when I get back, thanks everyone

 

[ggunn]

I know an electrician who connected nine three phase PV inverters to a service with aluminum conductors using copper only listed lugs and burned up all 27 of them. We cut one of the burned lugs open and found a black resistive layer that had formed between the conductor and the lug. Resistance caused heat, and heat accelerated formation of the resistive layer - a positive feedback loop. He was lucky not to have caused a fire.

 

[acrwc10]

View attachment 2562413 un the field right now,. We grabbed a split bolt to extend a ground in a panel that was cut too short. Instead of just blindedly usung it, I looked to see if we could use it for aluminum wire. I don't think we can

You could just tap a lug into the panel and terminate at the top of the box.

 

[Sea Nile]

I didn't think of that, I did however let the office know about it. They are sending a crew back to fix the issue and were glad I caught it.

 

[Dsg319]

I didn't think of that, I did however let the office know about it. They are sending a crew back to fix the issue and were glad I caught it.

Keep up the good work and paying attention. You’ll go far by challenging yourself to do things correct and not just going along with the common Joe.