splicing BX to romex
#1
04-13-15, 04:30 PM
splicing BX to romex
hello
i have a single outlet on a basement wall run with older AC/BX armored cable,
i need to extend the run and i will be using romex/NM to to do so.
i know that the AC/BX in to the junction box must be securely fastened with the proper connector and the romex out must be properly grounded to the box with the bare copper wire to continue the ground going forward. being the outlet is on an exposed basement wall each wire in/out will be enclosed in its own 1/2" conduit as it runs up the wall.
the existing AC/BX wire is in good condition most likely from the 1960's
however i see no evidence of the thin silver conductor that is wrapped around the armor like newer AC/BX. additionally if using the proper AC/BX connector to the box i will have no way of securing the 3' piece of metal conduit which will be covering the AC/BX as it runs up the wall (the original installation just had the AC/BX in a section of metal conduit secured to the wall but not the box)
how can i handle the box attaching issue for the 3' section of conduit for the
bx?
thanks for the advice
i have a single outlet on a basement wall run with older AC/BX armored cable,
i need to extend the run and i will be using romex/NM to to do so.
i know that the AC/BX in to the junction box must be securely fastened with the proper connector and the romex out must be properly grounded to the box with the bare copper wire to continue the ground going forward. being the outlet is on an exposed basement wall each wire in/out will be enclosed in its own 1/2" conduit as it runs up the wall.
the existing AC/BX wire is in good condition most likely from the 1960's
however i see no evidence of the thin silver conductor that is wrapped around the armor like newer AC/BX. additionally if using the proper AC/BX connector to the box i will have no way of securing the 3' piece of metal conduit which will be covering the AC/BX as it runs up the wall (the original installation just had the AC/BX in a section of metal conduit secured to the wall but not the box)
how can i handle the box attaching issue for the 3' section of conduit for the
bx?
thanks for the advice
#2
04-13-15, 05:36 PM
Group Moderator
BX would not be require to be run in metal conduit as long as it followed the building surface, the Romex would. You should be able to attach the conduit to the wall using the proper fasteners and anchors (if needed). If it is concrete you will need to use a hammer drill.
If the BX does not have the bonding strip, you can not extend the circuit as it would be ungrounded. You would have to run a new cable from your panel.
Are you sure NM cable is approved in your area? I was under the impression Romex is not allowed in NYC.
If the BX does not have the bonding strip, you can not extend the circuit as it would be ungrounded. You would have to run a new cable from your panel.
Are you sure NM cable is approved in your area? I was under the impression Romex is not allowed in NYC.
#3
04-13-15, 06:23 PM
thank you tolyn
addendum
i cut away a section of armor and noticed IT DOES have the bonding strip, it was broken off inside the jacket. will this make it ok to extend?
if so i will put the BX in the conduit and attach it to the wall but not the box itself,
correct?
being this will be the first outlet on the run i am extending i was going to make it a GFI so everything down the line is protected, but i suppose for the purposes of my example of BX "in"going to Romex "out", wether outlet or splice its all the same rules correct?
yes
in NYC bx is still required, i am in the suburbs, good catch being in MN
addendum
i cut away a section of armor and noticed IT DOES have the bonding strip, it was broken off inside the jacket. will this make it ok to extend?
if so i will put the BX in the conduit and attach it to the wall but not the box itself,
correct?
being this will be the first outlet on the run i am extending i was going to make it a GFI so everything down the line is protected, but i suppose for the purposes of my example of BX "in"going to Romex "out", wether outlet or splice its all the same rules correct?
yes
in NYC bx is still required, i am in the suburbs, good catch being in MN
#4
04-13-15, 07:35 PM
i will put the BX in the conduit and attach it to the wall but not the box itself,
i suppose for the purposes of my example of BX "in"going to Romex "out", wether outlet or splice its all the same rules correct?
each wire in/out will be enclosed in its own 1/2" conduit as it runs up the wall.
#5
04-13-15, 10:43 PM
since its only running 3' up an open exposed wall i will just run the NM through the short section of conduit.
yes i will be using GFI protection for the first outlet, BX in and romex out
yes i will be using GFI protection for the first outlet, BX in and romex out
#6
04-14-15, 03:57 PM
Are you sure NM cable is approved in your area? I was under the impression Romex is not allowed in NYC.
