Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_66596 ( "Name" text, "Labour" real, "Conservative" real, "Political party" text, "Electorate" real, "Constituency" text )

### Question ###
What is the smallest electorate for the Conservative party in South West Devon constituency, with over 2 conservatives and a name of Plymstock Radford?

### Accurate SQL ###

SELECT MIN("Electorate") FROM table_66596 WHERE "Political party" = 'conservative' AND "Constituency" = 'south west devon' AND "Conservative" > '2' AND "Name" = 'plymstock radford'