junction box help

[baza890]

can u connect a 1.5mm with a 1.0mm in a jb i assume u can but it is bigger which is making these connections alot harder and fidgety. is it better to get a maintenance free junction box from screwfix and can all the wires fit into the jb, its four wires 1.0mm or 3 wires 1mm and one 1.5m?

(and no i didnt wire i just brought them down from the joists) and if someone can can you link the JB from screwfix if not all good

 

[westward10]

You have been told on your other thread to use maintenance free as this is likely to be inaccessible.

 

[baza890]

You have been told on your other thread to use maintenance free as this is likely to be inaccessible.

true, what i should have asked was if 4 wires fit into a jb i thought it would be too much since its 1mm and 1.5

 

[Avo Mk8]

No problem with one designed for four cables!
Available from many outlets, but not Screwfix for some reason!
There are other options, but I've used these successfully.

 

[mainline]

can u connect a 1.5mm with a 1.0mm in a jb i assume u can but it is bigger which is making these connections alot harder and fidgety. is it better to get a maintenance free junction box from screwfix and can all the wires fit into the jb, its four wires 1.0mm or 3 wires 1mm and one 1.5m?

(and no i didnt wire i just brought them down from the joists) and if someone can can you link the JB from screwfix if not all good

View attachment 122405

Buy some earth sleeving whilst you're there.

 

[GroovyG]

Buy some earth sleeving whilst you're there.

And make sure the sheath (grey overall casing) goes into the new junction box and is secured under the cable clamps - red/brown/blue/black insulation must not be visible outside the box.

 

[RMS Electrical]

can u connect a 1.5mm with a 1.0mm in a jb i assume u can but it is bigger which is making these connections alot harder and fidgety. is it better to get a maintenance free junction box from screwfix and can all the wires fit into the jb, its four wires 1.0mm or 3 wires 1mm and one 1.5m?

(and no i didnt wire i just brought them down from the joists) and if someone can can you link the JB from screwfix if not all good

View attachment 122405

Those JB's are from a museum, last used in the 90's. If the wiring is in your attic, or above ceiling height, buy a jobo box, or called obo box from a respected electrical contractor. This is a 4 or 6-way box, you puncture a small opening on the side ONLY wide enough to allow your wire or cable to enter snugly/tightly, you need this tension for mechanical strength. Also ask the elect wholesaler for a few "Waygo" lever-type connectors, with which you can use an assortment of wire sizes, cross-sectional area from 0.75mm² up to 4mm² with comfort, security and fully safe if insulation is pared back 14mm, or ½". To join earth wires, (the bare wire in the photo) should be sleeved (green/yellow sleeving) and connected with an appropriate strip connector, inside the obo box. These come in strips of 12, tear off one, or carefully separate a connector, has 2 small screws. Twist the earth wires together or if very thin flexible earth wires " twist the strands together, forming one tight wire and fold up once or twice to increase its thickness. A better JB, is a whiska box but for this the cables need to be glanded, not good for single conductors. There are variations of solid pvc jb's, some have a lid which screws on, some have easier wire or cable entry points, but obo is good enough for starters.
I am 50 years qualified installation electrician, licenced wireman, contractor etc, this is good, trusted, safe advice.
Robert in Sligo Ireland

 

[mainline]

Those JB's are from a museum, last used in the 90's. If the wiring is in your attic, or above ceiling height, buy a jobo box, or called obo box from a respected electrical contractor. This is a 4 or 6-way box, you puncture a small opening on the side ONLY wide enough to allow your wire or cable to enter snugly/tightly, you need this tension for mechanical strength. Also ask the elect wholesaler for a few "Waygo" lever-type connectors, with which you can use an assortment of wire sizes, cross-sectional area from 0.75mm² up to 4mm² with comfort, security and fully safe if insulation is pared back 14mm, or ½". To join earth wires, (the bare wire in the photo) should be sleeved (green/yellow sleeving) and connected with an appropriate strip connector, inside the obo box. These come in strips of 12, tear off one, or carefully separate a connector, has 2 small screws. Twist the earth wires together or if very thin flexible earth wires " twist the strands together, forming one tight wire and fold up once or twice to increase its thickness. A better JB, is a whiska box but for this the cables need to be glanded, not good for single conductors. There are variations of solid pvc jb's, some have a lid which screws on, some have easier wire or cable entry points, but obo is good enough for starters.
I am 50 years qualified installation electrician, licenced wireman, contractor etc, this is good, trusted, safe advice.
Robert in Sligo Ireland

Round Jbs are still available and used and are compliant if accessible.

The obo box isn't maintenance free, also by the look of it has no strain relief.

If using wago connectors then better to use a wago box.

 

[baza890]

Those JB's are from a museum, last used in the 90's. If the wiring is in your attic, or above ceiling height, buy a jobo box, or called obo box from a respected electrical contractor. This is a 4 or 6-way box, you puncture a small opening on the side ONLY wide enough to allow your wire or cable to enter snugly/tightly, you need this tension for mechanical strength. Also ask the elect wholesaler for a few "Waygo" lever-type connectors, with which you can use an assortment of wire sizes, cross-sectional area from 0.75mm² up to 4mm² with comfort, security and fully safe if insulation is pared back 14mm, or ½". To join earth wires, (the bare wire in the photo) should be sleeved (green/yellow sleeving) and connected with an appropriate strip connector, inside the obo box. These come in strips of 12, tear off one, or carefully separate a connector, has 2 small screws. Twist the earth wires together or if very thin flexible earth wires " twist the strands together, forming one tight wire and fold up once or twice to increase its thickness. A better JB, is a whiska box but for this the cables need to be glanded, not good for single conductors. There are variations of solid pvc jb's, some have a lid which screws on, some have easier wire or cable entry points, but obo is good enough for starters.
I am 50 years qualified installation electrician, licenced wireman, contractor etc, this is good, trusted, safe advice.
Robert in Sligo Ireland

ty for the reply mate, i was thinking of if it broke dont fix it. Might just go get that jb then it has been bugging me abit but i got distracted so went off the idea on changing it.

Round Jbs are still available and used and are compliant if accessible.

The obo box isn't maintenance free, also by the look of it has no strain relief.

If using wago connectors then better to use a wago box.

tbh the wires came out abit cause it was hanging loose from the ceiling, so they were pulled out the jb. See do I just leave it as it's working or do I get a maintenance free jb and wire them in that.

 

[RMS Electrical]

You have been told on your other thread to use maintenance free as this is likely to be inaccessible.

You have been told on your other thread to use maintenance free as this is likely to be inaccessible.

Baza890 and westward10 , i did not read the post correctly, but I agree the wago junction box is the "way to go", excuse the pun. Try to source some 221 or similar wago connectors, if the box is not populated. And, if course, please isolate everything/switch off the power, use a head light if necessay and consider yours and other's safety when working on electrical systems.
RMS Electrical

 

[mainline]

ty for the reply mate, i was thinking of if it broke dont fix it. Might just go get that jb then it has been bugging me abit but i got distracted so went off the idea on changing it.

tbh the wires came out abit cause it was hanging loose from the ceiling, so they were pulled out the jb. See do I just leave it as it's working or do I get a maintenance free jb and wire them in that.

You need to get it sorted out asap, it can't be left like that.

If you don't want to buy a junction box, then at the very least sheath the cpcs (earths) and terminate the cables properly within that junction box and screw it to a joist.

 

[GroovyG]

You need to get it sorted out asap, it can't be left like that.

If you don't want to buy a junction box, then at the very least sheath the cpcs (earths) and terminate the cables properly within that junction box and screw it to a joist.

And make sure all the cables are clipped within a few inches of the box so as to avoid any strain on the terminals.

 

[RMS Electrical]

You need to get it sorted out asap, it can't be left like that.

If you don't want to buy a junction box, then at the very least sheath the cpcs (earths) and terminate the cables properly within that junction box and screw it to a joist.

Yes, I agree, you cant leave it like it is. You are now liable. So terminate safely after sleeving, and use cable ties to secure the cables that they cant be pulled out of the jb, and screw it up/attach to joist away from harm