Document ID: chunk:federal_register_of_legislation:F2024L01024:front:0:p142
Version: federal_register_of_legislation:F2024L01024
Segment Type: other
Provision Reference: 
Character Range: 417546–420293

that is designed to be charged by an external electrical source.
5. For the purposes of 3A001.e.1.a., 'continuous power density' (W/kg) is calculated from the nominal voltage multiplied by the specified maximum continuous discharge current in ampere (A) divided by the mass in kilograms. 'Continuous power density' is also referred to as specific power.
Note: 3A001.e.1. does not apply to batteries, including single‑cell batteries.
3. A. 001. e. 2. High energy storage capacitors as follows:
N.B.: SEE ALSO 3A201.a. AND MUNITIONS LIST.
a. Capacitors with a repetition rate of less than 10 Hz (single shot capacitors) and having all of the following:
1. A voltage rating equal to or more than 5 kV;
2. An energy density equal to or more than 250 J/kg; and
3. A total energy equal to or more than 25 kJ;
b. Capacitors with a repetition rate of 10 Hz or more (repetition rated capacitors) and having all of the following:
1. A voltage rating equal to or more than 5 kV;
2. An energy density equal to or more than 50 J/kg;
3. A total energy equal to or more than 100 J; and
4. A charge/discharge cycle life equal to or more than 10,000;
3. A. 001. e. 3. "Superconductive" electromagnets and solenoids, specially designed to be fully charged or discharged in less than one second and having all of the following:
N.B.: SEE ALSO 3A201.b.
Note: 3A001.e.3. does not apply to "superconductive" electromagnets or solenoids specially designed for Magnetic Resonance Imaging (MRI) medical equipment.
a. Energy delivered during the discharge exceeding 10 kJ in the first second;
b. Inner diameter of the current carrying windings of more than 250 mm; and
c. Rated for a magnetic induction of more than 8 T or "overall current density" in the winding of more than 300 A/mm2;
3. A. 001. e. 4. Solar cells, cell‑interconnect‑coverglass (CIC) assemblies, solar panels, and solar arrays, which are "space‑qualified", having a minimum average efficiency exceeding 20% at an operating temperature of 301 K (28°C) under simulated 'AM0' illumination with an irradiance of 1,367 watts per square metre (W/m2);
Technical Note:
For the purposes of 3A001.e.4., 'AM0', or 'Air Mass Zero', refers to the spectral irradiance of sun light in the earth's outer atmosphere when the distance between the earth and sun is one astronomical unit (AU).
           3. A. 001. f. Rotary input type absolute position encoders having an "accuracy" equal to or less (better) than 1.0 second of arc and specially designed encoder rings, discs or scales therefor;
           3. A. 001. g. Solid‑state pulsed power switching thyristor devices and 'thyristor modules', using either electrically, optically, or electron radiation controlled switch methods and having any of the following:
1. A