Brass Glands & Aluminium Gland Plate
Brass Glands & Aluminium Gland Plate
(OP)
Hi all,
I have a simple but important question.
Can we use Brass Glands for Aluminum Wire Armoured SIngle Core Cables ?? The gland plate material is Aluminium.
I have a simple but important question.
Can we use Brass Glands for Aluminum Wire Armoured SIngle Core Cables ?? The gland plate material is Aluminium.






RE: Brass Glands & Aluminium Gland Plate
Bill
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"Why not the best?"
Jimmy Carter
RE: Brass Glands & Aluminium Gland Plate
Thanks for your reply..But i missed your point completely regarding glycol paint. Hope thats a joke..!
1.Tha Switchgear Panel gland plate is aluminium.My cable is 1cx630 sq.mm,AWA 3 runs per phase. I'm planning to use Brass Cable Glands for this cable.I will be running these cables in trenches in trefoil formation.However the Cables will be terminated linearly in the Switchgear.
Here they say we can use brass as well as aluminium glands.But the cost and delivery period for aluminum glands is almost double that of brass glands.
I would like to know if there is any technical issues for using Brass gland in the above scenarios.
Thanks,
Alan
RE: Brass Glands & Aluminium Gland Plate
Aluminium glands gall up over time and are a maintenance nightmare if you are anywhere near a marine or coastal area or have any atmospheric pollution.
RE: Brass Glands & Aluminium Gland Plate
Rain water is no longer pure, acid rain is common. Acid rain on copper may form copper salts that are corrosive to aluminum. In a distribution system with aluminum conductors running from pole to pole it is common practice to position the copper cable drops from the transformers under the aluminum cables, even though it may look neater to position the copper above the aluminum. Some years ago our little island utility was constructed with the copper drops positioned above the aluminum cables. Corrosion and smoking connections were a chronic issue. A visiting utility engineer gave us a tip and the connetions were changed to position the copper below the aluminum and the issues went away.
In the part of the petro-chemical industry that I am familiar with, copper grounding conductors are run in the cable trays and are connected to the aluminum alloy trays about every 12 meters. The connections are then painted with glyptol paint.
Bras and aluminum, I'm not sure, but if it was my installation I would look for some method to avoid rain or moisture from contacting the brass.
If this is an indoor installation with little likely-hood of condensation or moisture the brass glands will not need protection. (Subject to Scotty's comment re marine or coastal areas.)
Ps Check the locknuts. I have seen issues where aluminum connectors were used with ferrous locknuts. The AHJ demanded that the ferrous locknuts be changed out for non ferrous locknuts.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Brass Glands & Aluminium Gland Plate
RE: Brass Glands & Aluminium Gland Plate
http://www.etscc.co.uk/catalog/cable-glands-adapto...
They ensure that there is no contact between the cable gland and the gland plate. This would help to eliminate over heating in the cables as any potential for circulating currents would be avoided. They would need, however, to ensure earth continuity provision is catered for in some form when using insulated cable glands.
RE: Brass Glands & Aluminium Gland Plate
Bill
--------------------
"Why not the best?"
Jimmy Carter