Jim ‘Slim’ Mimlitz, SCADAmetrics
At times, it’s necessary to splice a meter’s integral signal cable with an extension cable to increase the overall cable length.
For splice hardware, I recommend the UY2 Scotchlok connectors by 3M: Datasheet Link
For 3-conductor extension cable, I recommend 5521FE cable by Belden (Part No. 5521FE 008 1000): Datasheet Link. Note that this Belden cable has three (3) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, WHITE), an outer foil shield and a drain wire. This cable is riser-rated (CMR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).
For 4-conductor extension cable (for certain Radio-Read Filter applications), I recommend 5522FL cable by Belden (Part No. 5522FL 002 1000): Datasheet Link. Note that this Belden cable has four (4) solid, 22-gauge, copper conductors with color-coded insulators (RED, BLACK, BLUE, BROWN), an outer foil shield and a drain wire. This cable is riser-rated (FPLR). The drain wire should be tied to ground on only one end (preferably the control cabinet end).
An alternate 4-conductor extension cable that features stranded conductors (for certain Radio-Read Filter applications) is the 5502FE cable by Belden (Part No. 5502FE 008 1000): Datasheet Link. Note that this Belden cable has four (4) stranded, 22-gauge, copper conductors with color-coded insulators (RED, GREEN,BLACK,WHITE ), an outer foil shield and a drain wire. This cable is riser-rated (CMR). The drain wire should be tied to ground on only one end (preferably the control cabinet end). However, keep in mind that the other solid conductor-type cable will likely work better with Scotchlok splicers.
All of the above hardware may be purchased from Newark Electronics or other electronic supply vendors.