Section 25.1362

14 CFR Ch. I (1-1-19 Edition)

(b) Burns. The temperature of any
part that may be handled by a crewmember during normal operations
must not cause dangerous inadvertent
movement by the crewmember or injury to the crewmember.
[Amdt. 25-123, 72 FR 63406, Nov. 8, 2007]

Section 25.1362 Electrical supplies for emergency conditions.
A suitable electrical supply must be
provided to those services required for
emergency procedures after an emergency landing or ditching. The circuits
for these services must be designed,
protected, and installed so that the
risk of the services being rendered ineffective under these emergency conditions is minimized.

[Amdt. 25-123, 72 FR 63406, Nov. 8, 2007]

[Amdt. 25-123, 72 FR 63406, Nov. 8, 2007]

Section 25.1363 Electrical system tests.
(a) When laboratory tests of the electrical system are conducted - 
(1) The tests must be performed on a
mock-up using the same generating
equipment used in the airplane;
(2) The equipment must simulate the
electrical characteristics of the distribution wiring and connected loads to
the extent necessary for valid test results; and
(3) Laboratory generator drives must
simulate the actual prime movers on
the airplane with respect to their reaction to generator loading, including
loading due to faults.
(b) For each flight condition that
cannot be simulated adequately in the
laboratory or by ground tests on the
airplane, flight tests must be made.

spaschal on DSK3GDR082PROD with CFR

(c) Domestic appliances, particularly
those in galley areas, must be installed
or protected so as to prevent damage or
contamination of other equipment or
systems from fluids or vapors which
may be present during normal operation or as a result of spillage, if such
damage or contamination could create
a hazardous condition.
(d) Unless compliance with Section 25.1309(b)
is provided by the circuit protective
device required by Section 25.1357(a), electric
motors and transformers, including
those installed in domestic systems,
must have a suitable thermal protection device to prevent overheating
under normal operation and failure
conditions, if overheating could create
a smoke or fire hazard.

Section 25.1365 Electrical appliances, motors,
and transformers.
(a) Domestic appliances must be designed and installed so that in the
event of failures of the electrical supply or control system, the requirements of Section 25.1309(b), (c), and (d) will be
satisfied. Domestic appliances are
items such as cooktops, ovens, coffee
makers, water heaters, refrigerators,
and toilet flush systems that are
placed on the airplane to provide service amenities to passengers.
(b) Galleys and cooking appliances
must be installed in a way that minimizes risk of overheat or fire.

LIGHTS
Section 25.1381

Instrument lights.

(a) The instrument lights must - 
(1) Provide sufficient illumination to
make each instrument, switch and
other device necessary for safe operation easily readable unless sufficient
illumination is available from another
source; and
(2) Be installed so that - 
(i) Their direct rays are shielded from
the pilot-s eyes; and
(ii) No objectionable reflections are
visible to the pilot.
(b) Unless undimmed instrument
lights are satisfactory under each expected flight condition, there must be a
means to control the intensity of illumination.
[Doc. No. 5066, 29 FR 18291, Dec. 24, 1964, as
amended by Amdt. 25-72, 55 FR 29785, July 20,
1990]

Section 25.1383

Landing lights.

(a) Each landing light must be approved, and must be installed so that - 
(1) No objectionable glare is visible
to the pilot;
(2) The pilot is not adversely affected
by halation; and
(3) It provides enough light for night
landing.
(b) Except when one switch is used
for the lights of a multiple light installation at one location, there must be a
separate switch for each light.

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