... Certificate 3,SGS,BV,TUV approved 4,OEM, ODM cooperation Fire alarm Control Cable with colourful types 450/750~600/1000V ... return circuit,electrical protection and measurement in power distribution unit under the circumstance that the rated voltage is up to 450 ... Control CableCopper conductor PVC insulated PVC sheathed SWA Control Cable Fire alarm Control Cable with colourful types