VITALink®
MC/RC90
Fire-Resistive Cable Certified by UL and ULC
IM-120-0
VITALink® MC/RC90 Cables
Rev 0
Systems 120/120A/60
7/31/2020
RSCC Wire & Cable LLC © 2020 • 20 Bradley Park Road • East Granby, CT 06026 USA • 800-327-7625 Tel: 860-653-8300 • Fax: 860-653-8321 •
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supported/secured to a 2 hour structure no greater than three feet for
lengths greater than 5 ft.
Trapeze
Trapeze style installation is acceptable using a minimum 3/8” steel threaded
rod with steel strut washers and nuts. Secure strut into 2 hour rated structure
to the appropriate depth to account for supported weight and spalling. 7/8”
strut is not allowed for trapeze style mounting.
Tray
Steel cable tray is an acceptable support method and shall be supported every
five feet.
Conduit
This section applies to cables installed outside of the firezone and in
circumstances acceptable to AHJ.
Some installation may require that the cable is routed through conduit. Cable
should not exceed fill ratio and be de-rated as necessary. Rigid conduit is not
permitted.
EMT or IMC is acceptable for wall penetrations or short sections. Conduits
shall be fire stopped, with a material compatible with plastic and copper,
where the cable enters and exits the conduit. The conduit shall be supported
every five feet. Couplings for steel conduit shall also be steel.
Some conduits are routed underground and enter the building. PVC conduit is
acceptable for these instances as they are directly buried or in concrete.
Where the conduit enters the building, the conduit should be fire stopped.
Routing through PVC conduit is not allowed after entrance into the building.
Cable Securement
Some configurations may require ampacity de-ratings. Follow NEC, CE CODE or
governing code. All straps shall be steel and secure without slack onto cable.
Straps shall be 16 gauge minimum.
Overall Polymeric Jacketed Cable
T&B J-800, two hole one piece strap, two piece single hole with strut nut and
washer on each side of cable (each side of outermost cables if arrayed without
gaps between the straps, Figure 1 below) and in contact with the strap.
Trapeze style horizontal installations shall only use any strap in non-jacketed
section below.
Some illustrations of straps and configurations are provided below.
J-800
1-Piece
2-Piece
Saddle
