Cable Lug

The terminal [lug] is a power cable most of failure location.

The terminal has to withstand the maximum permitted steady state and short-circuit current of the cable. Then you must use a suitable tool to crimp it and a suitable length and strength. See the following:

http://www.klauke.com/fileadmin/pdf/Produkte/BRDESONDERDR108GB_DE_Sonderdruck_GB.pdf

First of all as the conductor could be solid, stranded [usually class II (B), compressed or compact, round or sectorial the lug has to fit all the possibility in one lug. So you may use a metric conductor in an AWG destined lug but very close [as 300 MCM lug for 150 mm^2 conductor.]

An advantage is, it may be a field expedient solution: use what I have on hand, get this installation finished so I can go home.

A disadvantage may be the subsequent unscheduled undesirable thermal event.

Actually,

Usage of under size lug is not an issue...! Mostly we found that little lower size of lug will not have much thermal co-efficient of differenance. So, use then same what you have...!

Also, as far as you are sure about load end. B'coz after fixing the lug immediately you

will not leave it as it is. No need to get confuse. Go ahead with fixing the job. Then, you can arrange all the required and specific material.

All the best....!

Hi All

Due to no available of 1.3mm cable lug, i've use 1.5mm cable lug prior to testing.

Regard

Mohd

Friends,

JRaef has given you a very pithy but correct answer. The reason it is "illegal in most places" is because the electrical codes (NEC and probably others) specify that components must be installed in accordance with their listing directions. In other words, if the product has installation (or maintenance) instructions or limits by the testing agency's listing, you must comply with these or be breaking the law.

Some crimping tools will take a wide range of lugs and crimp them onto a smaller wire with no problems because of their design. They will usually include instructions that show this work to be acceptable even if the components used do not give the permission. That is because you have 4 components in play--the wire, the lug, the tool, and the installer.

Be smart--ensure that your work will meet codes, so you minimize future liability.

--JMM

One disadvantage might be dismissal from post, following some undesirable catastrophic self-disassembly event at the lug, perhaps?

http://www.youtube.com/watch?NR=1&v=cHHNtZFFNzI