The UK symbol library BS EN60617 / BS 1635 does not contain the space type definitions as the US symbol library ANSI Y32.9-1972. So, what is shown in the workbook is incorrect for the UK dataset. This is an old workbook and I am in the stages of updating the AECOsim Building Designer Electrical course material and creating new videos to go along with it.
As far as the space type definitions, this information is handled in the lighting analysis software, it would be input there instead of coming from ABD. The results will still come into ABD on the subsequent import of the lighting calculations.
If you are still having problems importing and saving the space, keep in mind the spaces for electrical can be created with the electrical tools. There is an exercise on creating a space boundary using the electrical Building Manager. The spaces can be created in the database with the Building Manager and the Draw Room Shape tool in the Building Manager can be used to define the boundaries of the spaces.