The hole of cable lug?
The hole of cable lug?
(OP)
Any goru,
please advise.any standard mention one or two hole for cable lug,
currently I need to use cable lug for 300 sq.mm at secondary side of transformer 400V. But the transformer busbar provided for 2 hols cable lug, but I can not find it,
I need to convince to our client to use one hole cable lug only, but I do not know which standard should be back up on this.
Crazy Eng.
please advise.any standard mention one or two hole for cable lug,
currently I need to use cable lug for 300 sq.mm at secondary side of transformer 400V. But the transformer busbar provided for 2 hols cable lug, but I can not find it,
I need to convince to our client to use one hole cable lug only, but I do not know which standard should be back up on this.
Crazy Eng.






RE: The hole of cable lug?
The transformer bus bar may have multiple holes to allow for multiple or parallel secondary runs. Is the load that you are feeding close to the transformer's rating? Is the 300 sq.mm conductor (and the applicable lug) sized for this load?
RE: The hole of cable lug?
You seriously can't find two hole lugs?
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RE: The hole of cable lug?
Something like the #11-104 on the attached cut sheet should do nicely.
Link
RE: The hole of cable lug?
http://www.greengorillaindustrial.com/Mechanical_C...
http://www.e-photon.com/Catalog/Two-Hole-Lead-Plat...
Burndy YAG39L2NTCLD -
http://www.ebay.com/sch/sis.html?_nkw=Blackburn%20...
Blackburn ATL-6002
and other
RE: The hole of cable lug?
jraef, I can find it but delivery time is too long.
RE: The hole of cable lug?
Regards
Marmite
RE: The hole of cable lug?
Main reasons (as mentioned by other members) is ease of installation & less chance of connection working loose under load)
It is standaed practice in South Africa
RE: The hole of cable lug?
Movement can be caused by tension of heavy cable & vibration, magnitizim during a short circuit, or just someone pulling on the cable.
NEMA has developed a standard. (2) 1/2" bolts, 1.75" spacing. Most lug manufacturers supply their lugs with a NEMA hole pattern (in addition to single hole lugs).