According to these instructions no it does not.Does the smaller end of reducer also lower ampacity?
1.NOTES:
TIN PLATED ALUMINUM COMPRESSION PIN ADAPTER.
2.
CONNECTION: COMPRESSION CONNECTIONS ARE MADE IRREVERSIBLE AND MAINTENANCE FREE.
3.
APPLICABLE STANDARDS: CONNECTORS ARE ONLY UL LISTED AND CSA CERTIFIED WHEN INSTALLED WITH THE BURNDY ENGINEERED SYSTEM AND SELECT OTHER CRIMP TOOL MANUFACTURERS IN ACCORDANCE WITH ONE OR MORE UL
CATEGORIES. UL LISTED AND CSA CERTIFIED WIRE-CONNECTOR ADAPTERS. TESTED IN ACCORDANCE TO UL 486A-486B / CSA C22,2 NO.65
4. TEMPERATURE AND VOLTAGE RATING:
A. UP TO 35kV WITHOUT COVER. CONNECTORS ARE MARKED AL9CU TO DENOTE ALUMIUM(AL) OR COPPER (CU) WIRE UP TO 90°C.
B. ONE COVER SUPPLIED WITH THE CONNECTOR.
C. RATED 600 VOLT UP TO 90°C.
D. MADE FROM THE FOLLOWING MATERIALS: EPDM RUBBER, SANTOPRENE, OR PVC.
5. WIRE ACCOMMODATE TYPES (SEE TABLE): DUAL RATED TO ACCOMMODATE ALUMINUM AND COPPER WIRE.
A. ALUMINUM WIRE (AL): CLASS B (CONCENTRIC, COMPRESSED, COMPACT)
B. COPPER WIRE (CU): CLASS B (CONCENTRIC, COMPRESSED, COMPACT) OR CLASS C.
C. COPPER FLEX (CU): SEE TABLE FOR APPLICABLE WIRE CLASSES.
6. FEATURES:
A. SOLID PIN DESIGN ELIMINATES “HOW TIGHT IS TIGHT” TORQUE REQUIREMENT PROBLEM AND ELIMINATES OVER TORQUING ON STRANDED PIN ADAPTERS THAT COULD DAMAGE THE PIN AND CONNECTION.
B. SOLID PIN IS RATED FOR THE FULL AMPACITY OF THE INCOMING CONDUCTOR.
C. INLINE AND OFFSET PIN DESIGNS ARE AVAILABLE. OFFSET PIN DESIGN PROVIDES ADDED FLEXIBILITY IN LIMITED SPACE APPLICATIONS AS THE CONNECTORS CAN BE ROTATED.
D. BARREL TYPICAL ROLL MARKINGS (AS SPACE PERMITS): CRIMP ZONE IS INDICATD BY KNURL BANDS, BURNDY CORPORATE NAME OR LOGO, UL LOG (IF APPLICABLE), CSA LOGO (IF APPLICABLE), WIRE SIZE, DIE COLOR CODE, INDEX NUMBER.
E. BARREL DESIGN: BARREL END AT THE WIRE HAS AN INTERNAL FLARE, ALLOWING FOR SMOOTH WIRE INSERTION.
F. PRE-FILLED WITH PENETROX™A13, WHICH IS AN OXIDE INHIBITOR.
G.COLOR-CODED END CAPS TO MATCH THE DIE COLOR CODE. THIS ALSO PREVENTS PARTICLES FROM ENTERING THE BARREL.
7. INSTALLATION TOOLING AND DIES ARE CONSTANTLY BEING UPDATED. FOR THE LATEST INSTALLATION TOOLING INFORMATION, REFER TO THE MASTER CATALOG ON THE BURNDY WEBSITE.
8. DIMENSIONS IN BRACKETS [ ] ARE IN MILLIMETERS ROUNDED OFF TO THE NEAREST MILLIMETER, UNLESS OTHER SPECIFIED AND ARE FOR REFERENCE ONLY.
9. FOR PROPER INSTALLATION INSTRUCTIONS, SEE PRODUCT INSTALLATION GUIDE ON THE LAST SHEET.
10 NOT UL LISTED OR CSA CERTIFIED WITH THESE DIES.
Does the smaller end of reducer also lower ampacity?
Would dividing the number of strands by the ampacity give a relatively accurate value of what each strand carries?I would say yes but I'm not sure where you can actually find specific wording that prohibits it. The obvious question is that once you remove some strands how do you know how much you've lowered the ampacity of the conductor.
If you only removed enough strands so that it fit tightly into the terminal before tightening it would work for 100 years without issue.Would dividing the number of strands by the ampacity give a relatively accurate value of what each strand carries?
I know it’s sounds rudimentary but in a pinch it could provide a close number.
What rating would You be referring to?If you use the pin connectors, how do you get past the ratings of the terminal lugs?
The problem I have with the solid pin adapters is that most larger terminations are only listed for use with Class B or C stranded conductors. There is at least on manufacture of pin adapters that uses a stranded conductor for the pin.What rating would You be referring to?
Size?
Torque?
And a lot of inspectors would fail the installation.Just get the proper pin. You would get fired from a lot of jobs if they see you doing that
disregarding listing one could be using the 300K for voltage drop reasons and the actual load may be less than ampacity of a 250K conductor which possibly would never introduce any significant heating of said connection. But is there any recognized way of determining what is acceptable here? Does any lug manufacturer or conductor manufacturer tell us how the ampacity of the termination is to be adjusted when removing strands? NEC certainly does not have any information on how to do this. An inspector would have to default to making you follow any instructions that come with listings and there really is nothing that addresses this that I know of. A pin connector would be limited to anything covered in its listing.Is it a code violation to trim strands of wire in order to fit into a lug?
I have two 300 KC Mil neutrals that I need to get into a 250 max lug.
Thanks
It maybe works in theory, yet no real studies by the correct agencies to allow acceptance of that method either.Honestly I dont see what the issue is, as long as you keep the remaining strands so they fit snugly in the lug, and your OCPD is not more than the ampacity computed from a size or two down from the max the lug can take. With Aluminum conductors in particular, it could be done very neatly and with no question. IF you run your sawzall or bandsaw around an aluminum conductor about 2/3 of the way through the outer ring of strands, you can then bend them back and forth and they will break off very neatly and cleanly. Then, because it is a compact conductor, you can measure what remains if you have a set of dial calipers to confirm that what is left as sufficient ampacity. Might be a deal breaker if a ring removal left a conductor that was too large to fit, but removing the next ring would not have enough ampacity.