Fix Cables emitting smoke on first tick (GregTechCEu#2288)

Author: YoungOnionMC

src/main/java/com/gregtechceu/gtceu/common/blockentity/CableBlockEntity.java

@@ -305,7 +305,7 @@ private void uninsulate() {
     public void setTemperature(int temperature) {
         this.temperature = temperature;
         level.getLightEngine().checkBlock(worldPosition);
-        if (!level.isClientSide) {
+        if (!level.isClientSide && temperature >= meltTemp) {
             var facing = Direction.UP;
             float xPos = facing.getStepX() * 0.76F + worldPosition.getX() + 0.25F;
             float yPos = facing.getStepY() * 0.76F + worldPosition.getY() + 0.25F;