Greg have you through about giving your mod a more realist workshop environment.
In a normal workshop environment if you send too much power into a machine it will blow but does not destroy everything in a three meter radius of itself. When it blows up you should be able to repair it with tools and parts not have to replace it. Large machines in the actual industry have circuit breakers and fuses to prevent just such a problem. Industrial machines do explode because they don't have such safeguards in place.
One thing I find missing from the workshop environment is circuit breakers fuses & switchboards. If I had a switchboard I could turnoff parts of my workshop that were not required when I was offline this would help reduce server lag on the server.
I do not think that this is a GT problem.
This is an IC2 thing. The whole concept of electricity is wrong in IC2 (from the beginning) and it seems that the designer was some kind of gender studies MBA or similar specie. Definitely not an engineer.
Generally, the electricity do not travel in any kind of packets and when you connect several sources together via one cable, you are connecting them in parallel, not in serial. This is the first and main non-sense in the IC2.
Secondly, there are terms like "voltage" - the potential difference between two ends of cabling and "current" - the speed of change when the system try to find equilibrium. Also, there is a resistance of different wires.
It does not make sense to add various fancy blocks to fix something what is badly designed from the base. It will be better to redesign the whole concept of voltage and current flows in the cabling.
Something like "Hello, I am a source. I am kind of soft source, so I can supply only 32 EU/tick if I should be at +128 EU level". "I am a heavy duty machine, I need +128 EU level and constantly 128/tick current, otherwise I will slow down". "Hello, I am a copper wire. Voltage difference in not a problem (it never was), but keep in mind that I have a resistance X. So, if the current is too much, I will probably melt down."
There is no space for machine explosions in the realistic model of elecricity. The cabling can burn, this is real. But machine explosion ? This in non-sense. But this need to be fixed and redesigned in the base IC2, not in the GT.
The more realistic model in MC should look like: "I am a source (low ESR and really hard source) and I supply +512". "I am a copper wire and I can transfer only 128 EU/tick". "I am an hungry macerator and I need constat current of 32EU/tick if I should be 32 above the ground, otherwise I will shut down". Etc. etc. etc. 