Construction workers told me that double insulation is not good insulation, the choice of single-layer insulation is good. I feel double the skin should be safe it! They are not in order to save money so that Oh? More
(UPS power × power factor) / efficiency / 380/1.732 = UPS maximum input current, according to the maximum input current selection cable (according to the cable manufacturer's current meter selected)
This is a high-definition input / output interface, most of the current computer has this output interface, and the current LCD TV is also the majority of this input interface, the burden of the field of delivery Pirates of the shop for each other if you want to put the computer's high-definition video To play on the TV, just buy a HDMI high-definition cable can be
1mm2 power cord can generally withstand 4 ~ 8A current, according to your UPS output power to decide! For example: you use the UPS for the 6KVA frequency machine, the power factor is generally 0.. so the maximum load power of 4800W or so; that is 4800/220/4 = 5.. select the 6mm2 copper cable (ground can be fine: 4mm2 enough)
