Officers attached to the Chifley Police District say various items have been stolen during the past few months.

"Lithgow Police are appealing for public assistance in relation to the theft of copper wire and off cuts from Oakey Park Substation on Chifley Road and the Zig Zag Railway Station," officers said in a statement.

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Police said they would like to speak to a man spotted on CCTV in relation to a theft at Oakey Park on April 5.

Officers said there was a significant safety risk for anyone entering substation areas.

"Police also have safety concerns as wires in the substation have 11,000 volts running through them," he said.

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If you have any information that could assist contact Lithgow Police Station on 6352 8399 or Crime Stoppers on 1800 333 000.

Crime Stoppers can also be accessed online at https://nsw.crimestoppers.com.au.

Information is treated in strict confidence. The public is reminded not to report crime via NSW Police social media pages.

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