What is the difference between wdz cable and WDZN cable?
WDZ low smoke zero halogen flame retardant power cable. WDZN low smoke zero halogen flame retardant power transmission cable. W-halogen-free, D-low smoke, Z-flame retardant, N-refractory, YJ-XLPE insulated, V-PVC sheathed YJV-XLPE insulated PVC sheathed power cable. Model of the principle of omission: wire and cable products, copper is the main use of the conductor material, so the copper code T write, but bare wire and bare conductor products except. Bare wires and bare conductor products, power cables, electromagnetic wire products do not indicate a large class code, electrical equipment, wire and cable and communication cable category is not listed, but set out small class or series code. Item 7 is a special use of special occasions or additional special requirements of the mark, in the "-" after the alphabet letters. Sometimes in order to highlight the item, write this to the front. Such as ZR- (flame retardant), NH- (refractory), WDZ- (low smoke and halogen, enterprise standard), TH- (for hot and humid areas), FY- (anti-termite, enterprise standard).
In accordance with the requirements of the general requirements of the installation of the switch installation height is 1300mm, the socket is 300mm, air conditioning socket is 1800 ~ 2200mm; wall in accordance with the norms is not allowed to take the horizontal pipeline, so the conventional approach is vertical inside the floor of the pipe is near run.
Be careful is right, but it is not necessary to be timid. Need to do so: . ask the district property, if the best road distribution map, read the drawings, you know where the cable, where not. . ask your home decoration of the electrician, he knows the most where your house where there is a wire decoration. . the general wall cabinet installed relatively high, as long as the bottom of the socket to avoid, generally all right.
You ask the question is the installation of the trough or concealed it? If it is installed that is the first line and then drill the drill hole with the impact of drilling holes after the new material with a new material. If it is concealed there is no such problem that is buried pipe buried in the wall on the line
