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Yes provided the adaptor, or the plug that is plugged in, has a 13A fuse.
There are two answers in the solution set. To solve this we factor the left side to become 4a(a-4). This lets us get the 4. The other answers is 0. Set 4a=0 and solve for "a" and then a-4=0 and solve for "a."
The NEC table 310.16 does not go that small. If there is a code requirement in your location, you must follow it. Otherwise, a recommendation I found suggests 11A for short in-chassis wiring, and no more than 1.5A for longer power distribution wiring. With wire this small, your current will probably be limited more by maximum permissible voltage-drop than a safety rating.
The determining factor is that the maximum unbalanced neutral current must not exceed 20 amperes. If all circuits are on the same phase, or hot leg, you would be limited to one. That's because two 20A circuits on the same phase would cause 40A of neutral current to flow. Very bad... If you have a 240 volt Edison type service with two hot legs (typical in US homes), and you use one circuit from each hot leg, you are allowed two. If you load one or the other circuit to 20A, the maximum neutral current would be 20A. If you load both circuits to 20A at the same time, the neutral current falls to zero because the two legs balance each other out. No matter how you load the two circuits (as long as each does not exceed 20A), the neutral current will never exceed 20A. If you have three-phase power, then you are allowed three circuits, as long as they are one from each phase, for the same reason as above. Of course, all this is technically accurate, and will work, but you must also check your local electrical code, because most have some specific rules and exceptions to the above. Be legal, be safe! IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS. If you do this work yourself, always turn off the power at the breaker box/fuse panel BEFORE you attempt to do any work AND always use a meter or voltage indicatorto insure the circuit is, in fact, de-energized.
240a3c2
Yes provided the adaptor, or the plug that is plugged in, has a 13A fuse.
-4 + 2A = 12 - 15A + A-4 + 2A = 12 - 16A2A = 12 - 16A + 42A = 16 - 16AA = 8 - 8A
A 15A MCB will still trip at 16A, just it will take a long time as it should not operate at 15A. Will usually trip within 10s at 200% overload (C curve) and 1 s at 500%, you need to look at the trip time curve which is different for different CB types (A,B,C or D curve)
3a2 - 16a + 5 = 3a2 - 15a - a + 5 = 3a(a -5) - 1(a -5) = (3a - 1)(a - 5)
is there an error if the upstream circuit breaker is 16A TP and the downstream circuit breaker is 16A TPN?
The difference between 16A TP and 16A TPN isolator is the type of the circuit breaker that is used. The terminal design is the other difference.
8
The LCM of 5a and 16a is 80a
2 x 2 x 2 x 2 x A = 16A
18a2 + 16a + 38 = 3(6a2 + 8a + 19)
3a2+16a+5 = (3a+1)(a+5) when factored