Cable

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Revision as of 18:37, 15 April 2012 by Medicdude (talk | contribs) (→‎Copper Cable: hanged EU-Packet to EUP)
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The Cables are the primary means of transferring EU from one device to another. There are several different tiers of cables, depending on how much Voltage they can tolerate. If too much Voltage is applied to a cable, it will instantly melt but it can take unlimited amounts of "current" (EU/t) in the right Voltage-Range (EU-Packet). Different tiers are made out of different metals. Furthermore, all cables suffer from distance-related energy losses - long cables will inevitably lose energy in the process of transferring it. There are several ways to offset it - Transformers and insulation. For higher-tier cables, the insulation also reduces the amount of shock damage the player and NPC's receive from touching the cable under high voltage.

Insulated cables can also be painted using the Painter. This separates them, preventing cables of different colors from interacting with each other. This also greatly reduces the strain on CPU, as large cable meshes with many intersections require the game to perform many CPU-heavy calculations.


Insulation[edit]

Cable can be insulated by adding 'rubber'. Insulation reduces the EU loss over distance of cable.

Placed cable can have insulation added or removed with Insulation Cutters.

Uninsulated cables (except glass fibre) cannot be coloured with the Painter.

Cable Types[edit]

More detailed information and a larger recipe list is available by looking at the page for each cable type.

Tin Cable[edit]


Grid Tin.png


Grid Tin.png


Grid Tin.png


Grid Tin Cable.png

Tin Cable

Tin Cable


Tin cables can only tolerate Micro Voltage (up to 5 EUP) but they're very cheap to make and have extremely low energy loss.

Copper Cable[edit]


Grid Copper.png


Grid Copper.png


Grid Copper.png


Grid Copper Cable.png

Copper Cable

Copper Cable


Grid Rubber.png
Grid Copper.png
Grid Rubber.png
Grid Rubber.png
Grid Copper.png
Grid Rubber.png
Grid Rubber.png
Grid Copper.png
Grid Rubber.png
Grid Insulated Copper Cable.png

Insulated Copper Cable

Insulated Copper Cable


Copper cables are the most common cable tier. They are only capable of handling Low Voltage (up to 32 EUP), however, they suffer the smallest distance-related energy losses out of all the conventional cables, with insulated copper cables having even less energy losses.

Gold Cable[edit]


Grid Gold.png


Grid Gold.png


Grid Gold.png


Grid Gold Cable.png

Gold_Cable

Gold_Cable



Grid Rubber.png


Grid Rubber.png
Grid Gold.png
Grid Rubber.png


Grid Rubber.png


Grid Insulated Gold Cable.png

Insulated_Gold_Cable

Insulated_Gold_Cable



Grid Rubber.png


Grid Insulated Gold Cable.png




Grid 2xIns. Gold Cable.png

Gold cables can transport Medium Voltage (up to 128 EU-Packets) but has higher energy loss than copper. The loss can be remedied to some extent by giving the cable up to two layers of insulation.

HV (Iron) Cable[edit]


Grid Refined Iron.png


Grid Refined Iron.png


Grid Refined Iron.png


Grid HV Cable.png

HV_Cable

HV_Cable



Grid Rubber.png


Grid Rubber.png
Grid Refined Iron.png
Grid Rubber.png


Grid Rubber.png


Grid Insulated HV Cable.png

Insulated_HV_Cable

Insulated_HV_Cable



Grid Rubber.png


Grid Insulated HV Cable.png




Grid 2xIns. HV Cable.png


Grid Rubber.png


Grid 2xIns. HV Cable.png




Grid 4xIns. HV Cable.png

HV Cables can handle the highest amount of current possible at Extreme Voltage (up to 2048 EU-Packets) however it loses energy very quickly and should only be used when there's no other choice. HV cables can have up to three layers of insulation to help deal with the energy loss.

Glass Fibre Cable[edit]

Grid Glass.png
Grid Redstone.png
Grid Glass.png
Grid Glass.png
Grid Diamond.png
Grid Glass.png
Grid Glass.png
Grid Redstone.png
Grid Glass.png
Grid Glass Fibre Cable.png

Glass_Fibre_Cable

Glass_Fibre_Cable


Grid Glass.png
Grid Silver ingot.png
Grid Glass.png
Grid Glass.png
Grid Diamond.png
Grid Glass.png
Grid Glass.png
Grid Silver ingot.png
Grid Glass.png
Grid Glass Fibre Cable.png

Glass_Fibre_Cable

Glass_Fibre_Cable


Glass Fibre cable is a special type of cable capable of transporting High Voltage (up to 512 EU-Packets). It does not shock anything standing too close and has only a tiny amount of energy loss, however it is very expensive to make.

Detector Cable[edit]


Grid Redstone.png


Grid Electronic Circuit.png
Grid 4xIns. HV Cable.png
Grid Redstone.png


Grid Redstone.png


Grid Detector Cable.png



The Detector Cable is a special cable which outputs a redstone current when EU is flowing through it.

Splitter Cable[edit]


Grid 4xIns. HV Cable.png


Grid Redstone.png
Grid Lever.png
Grid Redstone.png


Grid 4xIns. HV Cable.png


Grid Splitter Cable.png


The Splitter Cable is a special cable which prevents EU from flowing through it when a redstone current is applied.


Cable Efficiency[edit]

All cables suffer distance-related energy losses, and depending on the tier and insulation of the given cable, the losses can vary greatly. The general unit for cable efficiency is EU/block. It shows how much EU every EU Packet looses per block. The number is accumulated along the whole length of the cable, and then rounded down to the nearest integer. Therefore, if a distance is short enough, there EU loss will remain zero. For example, since Copper Cable loses 1 EU every 5 blocks, a 4 block long Insulated Copper Cable won't lose any EU.

Tin Cable Copper Cable Gold Cable HV Cable Glass Fibre Cable Detector / Splitter Cable
EU/b EU loss EU/b EU loss EU/b EU loss EU/b EU loss EU/b EU loss EU/b EU loss
Uninsulated 0.025 1 EU every 40 blocks 0.3 1 EU every 3.33 blocks 0.5 1 EU every 2 blocks 1.0 1 EU every block 0.025 1 EU every 40 blocks 0.5 1 EU every 2 blocks
Insulated (1") --- 0.2 1 EU every 5 blocks 0.45 1 EU every 2.22 blocks 0.95 1 EU every 1.05 blocks --- ---
Insulated (2") --- --- 0.4 1 EU every 2.5 blocks 0.9 1 EU every 1.11 blocks --- ---
Insulated (3") --- --- --- 0.8 1 EU every 1.25 blocks --- ---

Voltage Efficiency[edit]

Depending on the EU/t traveling trough a cable it may be more efficient to use higher voltage cables and packets. This is because EU/b isn't applied on the total EU/t that travels the cable but on every single EU-Packet. So a copper cable carrying 320 EU/t over 10 Blocks of insulated copper cable is really carrying 10*32 EU-Packets and instead of: 320EU-2EU=318EU you get: 32EU*10-2*10=300EU. But when using 512 EU-Packets and 2x insulated gold cables you get: 320EU-4EU=316EU. In this example this is a difference of 16 EU over 10 Blocks.

The formula for overall EU/b is: Combined EU/t divided by Desired packet size multiplied by Cable's EU/b per Packet equals Combined EU/b

Below is an example of different EU/t packed into different EU-Packets and carried with different cables, cables are full insulated, EU-P equals EU-Packet, results are in Overall / Combined EU/b (not EU/b per Packet), results can't be rounded down to nearest integer.:

Example EU/t Tin Cable Copper Cable 1" Gold Cable 2" HV Cable 3" Glass Fibre Cable
2 EU-P 2 EU-P 32 EU-P 2 EU-P 32 EU-P 128 EU-P 2 EU-P 32 EU-P 128 EU-P 512 EU-P 2048 EU-P 2 EU-P 32 EU-P 128 EU-P 512 EU-P
2 EU/t 0.025 0.2 0.0125 0.4 0.025 0.00625 0.8 0.05 0.0125 0.003125 0.000781 0.025 0.00156 0.00039 0.000097
10 EU/t 0.125 1.0 0.625 2.0 0.125 0.0312 4.0 0.25 0.0625 0.0156 0.0039 0.125 0.00781 0.00195 0.000488
100 EU/t 1.25 10.0 0.625 20.0 1.25 0.312 40.0 2.5 0.625 0.156 0.039 1.25 0.078 0.0195 0.00488
500 EU/t 6.25 50.0 3.125 100.0 6.25 1.56 200.0 12.5 3.125 0.781 0.195 6.25 0.39 0.097 0.024
2000 EU/t 25 200 12.5 400 25 6.25 800 50 12.5 3.125 0.781 25 1.56 0.39 0.097
percentual EU/b 1.25% 10% 0.625% 20% 1.25% 0.315% 40% 2.5% 0.625% 0.156% 0.039% 1.25% 0.078% 0.0195% 0.0048%
  • Blue color indicates that EU-Packets under 32 EU can't be obtained by transforming. They can only be generated with generators as they always emit EU-Packages the size of their output EU.
  • Green color indicates the optimal EU-Package for that EU/t example. Blue fields are ignored.
  • Orange color and red color indicates sub-optimal EU-Packages.

Cable Splitting[edit]

Up to 6 cables can connect to one other cable. Current will only flow through a cable when requested by a consumer if the loss from the cable length will allow some energy to get to the consumer. i.e. a Batbox (32EU) will send across insulated copper to a furnace up to 155 blocks away (5x31). No energy will be sent to a furnace 156 blocks away.

Keep in mind, however, that an excessive number of cable intersections will increase strain on your CPU (and more importantly, the server, when playing on a multi-player server). Don't do things like having rows of adjacent cables with every block connected to every other block. Also, separate cables connected to an energy storage device (BatBox, etc.) or transformer do not count as a cable intersection, so take advantage of that when possible.