PCS union members at the National Museum of Wales were set to strike this Saturday against bosses’ plans to scrap premium pay on weekends.
The action is part of a long-running dispute. This saw workers across the museum’s seven sites walk out on three weekends in August last year.
The attack would see many already low paid workers lose between £2,000 and £3,000 a year.
That’s around 15 percent of their take home pay.
While workers would still get premium pay on bank holidays under the plans, it would no longer go towards their pension.
Bosses have also threatened to dismiss and “re-engage” staff on worse terms and conditions.
But the 80 percent vote to strike on a 56 percent turnout shows that workers are determined to beat this attack.
Union members at Big Pit, the National Coal Mining Museum, were also set to walk out this Sunday.