Looking for simulation corner model of 230VAC lines
You will likely be better off trying to decide what types of power line disturbances you want to be immune to then arrange your simulation environment to inject those types of disturbances. 

As a guide you could look at what the legal requirements are for agency certified product testing in your region of the world. These requirements will have immunity specifications that detail the minimum levels of disturbances that your product must survive and remain functional. Note that in most cases there are various types of products that fit into classification categories that will have varying levels of minimum requirements.

Once you understand the minimum requirements you will decide how much additional margin you want to design and test to. In addition you may decide to add additional types of requirements to focus on increased robustness for your product.

Once you have the targets understood it is not complicated to add sources into your model to inject each type of disturbance. For voltage types you can simply connect voltage sources in series. For current types you can put sources in parallel. For example if one of your requirements is to survive injected spikes on the power line up to 1200V peak at 1usec width you just create a source that is configured to produce a single or repetitive 1usec pulse with amplitude of 1200V. This source will simply add to the voltage being produced by the sine wave source that represents the AC mains.

You can also add series resistors into the simulation to show realistic real world circuit characteristics. Similarly small capacitors can be added between circuit nodes to simulate real world coupling.