Australia's spy agencies should be forced to disclose any security concerns they would have with a Chinese government-owned firm taking control of electricity assets before NSW voters go to the polls on Saturday, Labor insists.

In a fiery speech in federal Parliament late on Tuesday, Labor Senator Sam Dastyari called on the Abbott government to make public the view of domestic security experts at ASIO on the proposed "poles and wires" privatisation.

His intervention into the state campaign came amid questions over which foreign investors Premier Mike Baird has met with in relation to the sale.

Fairfax Media can reveal Liu Zhenya, the president of the Communist government-owned State Grid Corp of China, expected to be a frontrunner in the power auction, met Mr Baird at a business roundtable function in Beijing in September.