2019CJJ/T 120-2018 Technical Standards for Electrical and Automation Engineering of Urban Drainage System
2008CJJ 120-2008 Technical specification of electrical & automation engineering for city drainage system
CJJ 120-2008 Technical specification of electrical & automation engineering for city drainage system was changed to CJJ/T 120-2018 Technical Standards for Electrical and Automation Engineering of Urban Drainage System.