(D) Pump Wiring. All wiring from the controllers to the pump motors shall be in rigid metal conduit, intermediate metal conduit, electrical metallic tubing, liquidtight flexible metal conduit, or liquidtight flexible nonmetallic conduit Type LFNC-B, listed Type MC cable with an impervious covering, or Type MI cable.Existing fire pump that is being changed , has pvc coming out of slab to fire pump controller. This has to be at least emt right? New Controller is rated 3r.
I would think the OP means the wiring to controller not to pump motor.(D) Pump Wiring. All wiring from the controllers to the pump motors shall be in rigid metal conduit, intermediate metal conduit, electrical metallic tubing, liquidtight flexible metal conduit, or liquidtight flexible nonmetallic conduit Type LFNC-B, listed Type MC cable with an impervious covering, or Type MI cable.
….All control conductors within the fire pump room that are not fault tolerant
shall be protected against physical damage
…All electric motor–driven fire pump control wiring shall be in
rigid metal conduit, intermediate metal conduit, liquidtight
flexible metal conduit, liquidtight flexible nonmetallic conduit
Type B (LFNC-B), listed Type MC cable with an impervious
covering, or Type MI cable.
…Such wiring shall be protected against physical damage. Controller manufacturer’s
specifications for distance and wire size shall be followed.
…They shall be protected to resist potential
damage by fire or structural failure.
to be routed through a building(s) using one of the following
methods:
(1) Be encased in a minimum of 50 mm (2 in.) of concrete.
(2) Be protected by a fire-rated assembly listed to achieve a
minimum fire rating of 2 hours and dedicated to the fire
pump circuits.
(3) Be a listed electrical circuit protective system with a
minimum 2-hour fire rating. The installation shall comply
with any restrictions provided in the listing of the
electrical circuit protective system used.