If you use a too thin wire you will get a voltage drop from your front battery to the back of the vehicle. This can cause your fridge to not work, or it can cause the electrical cable<\/a> to overheat.<\/p>\n There are two things that will influence the amount of voltage drop.<\/p>\n 1. The thickness of the cable
\n2. The length of the cable<\/p>\n
mm<\/em>2<\/span><\/th>\n| AWG<\/th>\n | Actual diameter<\/th>\n | Lenght<\/th>\n | Max Amp<\/th>\n<\/tr>\n | 5<\/td>\n | 10<\/td>\n | 2.5mm<\/td>\n | 5m<\/td>\n | 10<\/td>\n<\/tr>\n | 10<\/td>\n | 7<\/td>\n | 3.6mm<\/td>\n | >5m<\/td>\n | 10<\/td>\n<\/tr>\n | 10<\/td>\n | 7<\/td>\n | 3.6mm<\/td>\n | 5m<\/td>\n | 20<\/td>\n<\/tr>\n | 16<\/td>\n | 5<\/td>\n | 4.6mm<\/td>\n | >5m<\/td>\n | 20<\/td>\n<\/tr>\n | 16<\/td>\n | 5<\/td>\n | 4.6mm<\/td>\n | 5m<\/td>\n | 30<\/td>\n<\/tr>\n | 25<\/td>\n | 3<\/td>\n | 5.8mm<\/td>\n | >5m<\/td>\n | 30<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n | Also note that there is a world wide confusion about the thickness of the cables.<\/p>\n If you talk to an electrical engineer he will talk square millimeters. If he tells you to get a 16mm wire you should make sure, does he mean 16 sqr mm<\/a> or actual 16mm diameter.<\/p>\n To add to the confusion some companies will talk about the AWG value (American Wire Gauge)<\/a>. The table above shows the correlation between the three different units of measure.<\/p>\n |
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