Improving connection to oven

hiace_drifter · Post by **hiace_drifter** » Thu Mar 30, 2023 6:10 pm

Whilst testing my oven elements I discovered the method of connection for the oven is less than satisfactory. Can I use sleeves or something on the bare wires to improve things?

Someone-Else · Post by **Someone-Else** » Thu Mar 30, 2023 6:20 pm

Sleeves where? the violet and grey wires? or...........

You should remake the brown wire connection, it too much on one side which means the screw will tighten up crooked.

hiace_drifter · Post by **hiace_drifter** » Thu Mar 30, 2023 6:24 pm

Someone-Else wrote: ↑Thu Mar 30, 2023 6:20 pm Sleeves where? the violet and grey wires? or...........

You should remake the brown wire connection, it too much on one side which means the screw will tighten up crooked.

I've seen metal sleeves that go over the bare copper ends before they go into plugs... to keep the strands together. In this instance on the bare end of the brown wire.

In terms of remaking the connection (this is how the kitchen fitters left it ... no comment!) do you mean have half the strands on the left of the clamping screw and half on the right?

Someone-Else · Post by **Someone-Else** » Thu Mar 30, 2023 6:44 pm

The item you are referring to is called a ferrule, they would be of no use in this instance as they are for "strait" connections, such as a socket, or a switch etc. The connection your cooker has is "round" You want (depends who you ask) a round crimp/cable lug. Either way you also should use a ratchet crimper (Normal crimper does not grip as well)

Unless you are planning on making lots of crimped connections, I would re make the cable connection.

It should be in a circle, not 50/50
The reason is, as it is a bare screw, as you tighten the screw, it pulls in on the left and pushes out on the right, so if it's 50/50 it will push the right side out.
If it's a circle, it always pulls the cable in.

Ideally, the connection should have a washer/square plate under the screw head, so all the screw does is compress the wire as it is tightened.

Someone-Else · Post by **Someone-Else** » Thu Mar 30, 2023 6:56 pm

This crimper has a "starfish" crimp, it only does ferrules.

This crimper only crimps insulated crimps

This crimper only crimps non insulated crimps

All the above crimpers have ratchets for a better crimp. You can get bigger crimpers that are hydraulic.

hiace_drifter · Post by **hiace_drifter** » Fri Mar 31, 2023 3:41 am

Someone-Else wrote: ↑Thu Mar 30, 2023 6:44 pm The item you are referring to is called a ferrule, they would be of no use in this instance as they are for "strait" connections, such as a socket, or a switch etc. The connection your cooker has is "round" You want (depends who you ask) a round crimp/cable lug. Either way you also should use a ratchet crimper (Normal crimper does not grip as well)

Unless you are planning on making lots of crimped connections, I would re make the cable connection.

It should be in a circle, not 50/50
The reason is, as it is a bare screw, as you tighten the screw, it pulls in on the left and pushes out on the right, so if it's 50/50 it will push the right side out.
If it's a circle, it always pulls the cable in.

Ideally, the connection should have a washer/square plate under the screw head, so all the screw does is compress the wire as it is tightened.

Thanks, makes sense. I had wrongly assumed the kitchen fitter had done it right in the first place!