I am just about to finish refitting my kitchen, the last item going in is a built-in dishwasher which is under a worktop. The drainer end of the stainless steel sink is partly above the dishwasher.
The dishwasher has two screwholes in its metal chassis above the door, which you are supposed to screw to the worktop above it. One of the screw holes (sod's law) precisely lines up with one of the metal clips which clamp the sink onto the worktop. The clip cannot be moved, it is attached to a slot in the metal of the sink.
I need to find a way of screwing the dishwasher to something solid, so it occurred to me that since the holes line up, I could actually put the sink clip screw up through the hole in the chassis of the dishwasher and into the sink clip thereby holding that side of the dishwasher reasonably solidly.
But is this a bad thing to do? The electrician who rewired the kitchen for me has earthed the copper water pipes below the sink with 10mm2 earth wire which runs back to the CU the other side of the kitchen. The dishwasher mains socket is part of a ring which is local to the kitchen, supplied by a MCB on the half of the CU which has an RCD. The sink tap is connected to the copper pipes via flexible tails with metal braiding, so I imagine there is a fairly good earth connection between the tap and the pipes. The tap sits on a rubber O-ring which compresses as the nut is tightned, so there is a good chance there is metal to metal contact between the tap and the sink, hence I have to assume there is some sort of earth connection to the sink even if it is poor.
Given the dishwasher is also earthed through the mains connection, is letting it touch the sort-of-earthed metal sink likely to be A Bad Thing? Dangerous? Likely to cause RCD trips?
Any advice gratefully received.
Thanks in advance.
Fleabag
The dishwasher has two screwholes in its metal chassis above the door, which you are supposed to screw to the worktop above it. One of the screw holes (sod's law) precisely lines up with one of the metal clips which clamp the sink onto the worktop. The clip cannot be moved, it is attached to a slot in the metal of the sink.
I need to find a way of screwing the dishwasher to something solid, so it occurred to me that since the holes line up, I could actually put the sink clip screw up through the hole in the chassis of the dishwasher and into the sink clip thereby holding that side of the dishwasher reasonably solidly.
But is this a bad thing to do? The electrician who rewired the kitchen for me has earthed the copper water pipes below the sink with 10mm2 earth wire which runs back to the CU the other side of the kitchen. The dishwasher mains socket is part of a ring which is local to the kitchen, supplied by a MCB on the half of the CU which has an RCD. The sink tap is connected to the copper pipes via flexible tails with metal braiding, so I imagine there is a fairly good earth connection between the tap and the pipes. The tap sits on a rubber O-ring which compresses as the nut is tightned, so there is a good chance there is metal to metal contact between the tap and the sink, hence I have to assume there is some sort of earth connection to the sink even if it is poor.
Given the dishwasher is also earthed through the mains connection, is letting it touch the sort-of-earthed metal sink likely to be A Bad Thing? Dangerous? Likely to cause RCD trips?
Any advice gratefully received.
Thanks in advance.
Fleabag
