NEC -54. Installation of Conductors and Equipment

VFR-400 • 5403548 • REV D • 10/07

NEC Section 760-54. Installation of Conductors and Equipment.

(a) Separation from Electric Light, Power, Class 1, and NPLFA Circuit Conductors.

(1)In Cables, Compartments, Enclosures, Outlet Boxes, or Raceways. Power-limited circuit conductors shall not be placed in any cable, compartment, enclosure, outlet box, raceway, or similar ﬁtting containing conductors of electric light, power, Class 1, or nonpower-limited ﬁre alarm circuit conductors.

Exception No. 1: Where the conductors of electric light, power, Class 1, or nonpower-limited ﬁre alarm circuit conductors are separated by a barrier from the power-limited ﬁre alarm circuits. In enclosures, power-limited ﬁre alarm circuits shall be permitted to be installed in a raceway within the enclosure to separate them from Class 1, electric light, power, and nonpower- limited ﬁre alarm circuits.

Exception No. 2: Conductors in compartments, enclosures, device boxes, outlet boxes, or similar ﬁttings, where electric light, power, Class 1, or nonpower-limited ﬁre alarm circuit conductors are introduced solely to connect to the equipment connected to power-limited circuits to which the other conductors are connected, and

a.The electric light, power, Class 1, and nonpower-limited ﬁre alarm circuit conductors are routed to maintain a minimum of 0.25 in. (6,35mm) separation from the conductors and cables of power-limited ﬁre alarm circuits, or

b.The circuit conductors operate at 150 volts or less to ground and also comply with one of the following:

1.The ﬁre alarm power-limited circuits are installed using Types FPL, FPLR, FPLP or permitted substitute cables, provided these power-limited cable conductors extending beyond the jacket are separated by a minimum of 0.25 in. (6,35mm) or by a nonconductive sleeve or nonconductive barrier from all other conductors, or

2.The ﬁre alarm power-limited circuit conductors are installed as nonpower-limited ﬁre alarm circuits in accordance with Section 760-25.

Exception No. 3: Conductors entering compartments, enclosures, device boxes, outlet boxes, or similar ﬁttings, where electric light, power, Class 1, or nonpower-limited ﬁre alarm circuit conductors are introduced solely to connect to the equipment connected to power-limited ﬁre alarm circuits or to other circuits controlled by the ﬁre alarm system to which the other conductors in the enclosure are connected. If the conductors must enter an enclosure that is provided with a single opening, they shall be permitted to enter through a single ﬁtting (such as a tee) provided the conductors are separated from the conductors of the other circuits by a continuous and ﬁrmly ﬁxed nonconductor, such as ﬂexible tubing.

VFR-400 specifications

The Viking VFR-400 is a light sport aircraft that has garnered attention for its innovative design and advanced technology. This aircraft is known for its versatility, performance, and safety features, making it a suitable choice for both recreational flying and pilot training.

One of the standout features of the VFR-400 is its efficient aircraft structure. Constructed primarily of high-strength composite materials, the VFR-400 boasts a lightweight yet durable frame. This not only enhances its aerodynamics but also contributes to increased fuel efficiency. The aircraft is powered by a reliable Rotax engine, which is well-regarded in the aviation community for its exceptional performance and low operational costs.

The VFR-400 is equipped with a low-wing design, which is optimized for stability and maneuverability. Pilots appreciate the responsive handling characteristics, which make it an enjoyable aircraft to fly, whether on short excursions or longer journeys. The spacious cabin design offers ample room for two occupants, ensuring comfort during flights. Large cockpit glass provides excellent visibility during takeoff and landing, critical times when situational awareness is paramount.

In terms of avionics, the VFR-400 features advanced electronic systems, including a modern glass cockpit display. This integration of technology provides pilots with real-time flight data, ensuring better navigation and situational awareness. Moreover, the aircraft often comes equipped with autopilot features, enhancing the flying experience, especially on longer flights.

Safety is a key aspect of the VFR-400 design. It incorporates redundant control systems, advanced braking systems, and robust structural integrity to withstand various in-flight scenarios. The landing gear is designed for easy maintenance and reliability, allowing for smooth landings on various surface types.

The VFR-400 is designed with fuel efficiency in mind, allowing for longer flight durations while keeping operational costs low. Its impressive range and payload capacity make it a highly flexible option for different mission profiles, from pilot training to leisurely flights.

Overall, the Viking VFR-400 exemplifies the spirit of modern aviation with its combination of performance, safety, and comfort. It stands out in the light sport aircraft category for its thoughtful engineering and commitment to delivering a quality flying experience. Whether for a seasoned aviator or someone new to flying, the VFR-400 offers a compelling platform for exploration and adventure in the skies.