Is inter-turn insulation impulse test and main insulation impulse test required for Jockey pumps? There is a inspection and test plan for a jockey pump motor with 415V,which has no mentioning of these tests.
Might be more appropriate in one of the electric forum.
It is a capital mistake to theorise before one has data. Insensibly one begins to twist facts to suit theories, instead of theories to suit facts. (Sherlock Holmes - A Scandal in Bohemia.)