§ 1505.8. Maximum acceptable material temperatures.
344 words·~2 min read·
/us/cfr/t16/s§ 1505.8·A research copy — for the controlling text, always check the official state or federal source. Not legal advice.
The maximum acceptable material temperatures for electrically operated toys shall be as follows (Classes 105, 130, A, and B are from "Motors and Generators," Standard MG-1-1967 1 published by the National Electrical Manufacturers Association): 1 Copies may be obtained from: National Electrical Manufacturers Association, 155 East 44th Street, New York, NY 10017. Material Degrees C. Degrees F. Capacitors ( 1) ( 1) Class 105 insulation on windings or relays, solenoids, etc.: Thermocouple method 2 90 194 Resistance method 110 230 Class 130 insulation system 110 230 Insulation:
Varnished-cloth insulation 85 185 Fiber used as electrical insulation 90 194 Class A Class B Class A Class B Insulation on coil windings of a.c. motors (not including universal motors) and on vibrator coils: In open motors and on vibrator coils---thermocouple or resistance method 2 100 120 212 248 In totally enclosed motors---thermocouple or resistance method 2 105 125 221 257 Insulation on coil windings of d.c. motors and of universal motors: In open motors: Thermocouple method 2 90 110 194 230 Resistance method 100 120 212 248 In totally enclosed motors:
Thermocouple method 2 95 115 203 239 Resistance method 105 125 221 257 Phenolic composition 3 150 302 Rubber- or thermoplastic-insulated wires and cords 3 60 140 Sealing compound ( 4) ( 5) Supporting surface while the toy is operating normally 90 194 Wood and other similar combustible material 90 194 ::: {.table_foot} 1 If the capacitor has no marked temperature limit, the maximum acceptable temperature will be assumed to be 65 °C. (149 °F.) for an electrolytic type and 90 °C.
(194 °F.) for other than an electrolytic type. 2 The temperature indicated refers to the hottest spot on the outside surface of the coil measured by the thermocouple method. 3 The limitations on rubber- and thermoplastic-insulated wires and cords and on phenolic composition do not apply if the insulation or the phenolic has been investigated and found to have special heat-resistant properties, or if the insulation meets the thermal requirements. 4 40 less than melting point. 5 104 less than melting point. :::