16A MCB in pre loaded CU
- Thread starter swelec
- Start date
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Hi i'm new be gentle! 
i have noticed 16a mcb feeding our upstairs sockets on a radial 4.0mm2 cable about 6 double sockets is this safe ? only used to feed alarm clock,bedside lamps etc ocasionally the hoover, wifes hair dryer.
i have noticed 16a mcb feeding our upstairs sockets on a radial 4.0mm2 cable about 6 double sockets is this safe ? only used to feed alarm clock,bedside lamps etc ocasionally the hoover, wifes hair dryer.
I'm not a spark, but that sounds safe to me. According to the TLC cable calculator even with a 50m run in a thermally insulated wall, 4mm carrying 16A is OK.
The 16A MCB provides protection over the circuit as a whole. Even though double sockets are only rated to 13A, the 16A or so you could draw before the MCB trips should be safe with good-quality ones.
I doubt you have anything to worry about, unless there is something in particular that concerns you?
The 16A MCB provides protection over the circuit as a whole. Even though double sockets are only rated to 13A, the 16A or so you could draw before the MCB trips should be safe with good-quality ones.
I doubt you have anything to worry about, unless there is something in particular that concerns you?
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