CREATURE II (serv.man7) - JBL Audio EMC - CB Certificate (repair manual). Page 52

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IEC 60950 3rd. Ed, 1999 
- Page 2 of 5 - 
 
 
 
 
Order No.  23171 
 
2.7.1  
Suitable NEC branch circuit protection is 
required for all standard supply outlets, 
receptacles and medium -base or smaller 
lampholders if the supply branch circuit 
protection is not suitable.  
Power distribution transformers distributing 
power at 100 V or more, and rated 10 kVA or 
more, require transformer overcurrent 
protection. 
Class III equipment. 
3.2  
Wiring methods (terminals, leads etc.) used for 
the connection of the equipment to the mains 
shall be in accordance with the NEC.  
Class III equipment. 
3.2.1  
Power supply cords are required to have 
attachment plugs rated not less than 125 
percent of the rated current of the equipment.  
Class III equipment. 
— 
3.2.3  
Permanent connection of equipment to the 
mains supply by a power supply cord is not 
permitted.  
Not permanently connected 
equipment. 
3.2.5  
Power supply cords are required to be no 
longer than 4.5m in length. 
Flexible power supply cords are required to be 
compatible with Article 400 of the NEC.  
Class III equipment. 
3.2.8  
Permanently connected equipment is required 
to have a suitable wiring compartment and wire 
bending space.  
Class III equipment. 
3.3  
Wiring terminals and associated spacings for 
field wiring connections shall comply with CSA 
C22.2 No. 0.  
Class III equipment. 
3.3.3  
Wire binding screws are not permitted to attach 
conductors larger than 10 AWG (5.3mm
2
).  
Class III equipment. 
3.3.4  
Terminals for permanent wiring, including 
protective earthing terminals are required to be 
suitable for U.S./Canadian wire gauge sizes, 
rated 125 percent of the equipment rating, and 
specially marked when specified (1.7.7).  
Class III equipment. 
3.4.2  
Motor control devices are required for cord-
connected equipment with a motor if the motor 
(a) has a nominal voltage rating greater than 
120 V, (b) is rated more than 12 A, or (c) is 
rated more than 1/3hp (locked rotor current 
over 43 A).  
No such motors in the equipment. 
3.4.8  
Vertically-mounted disconnect switches and 
circuit breakers are required to have the “on” 
position indicated by the handle in the up 
position.  
There is no such switch in the 
equipment. 
3.4.10 
For computer room applications, equipment 
with battery systems capable of supplying 750 
VA for five minutes are required to have a 
battery disconnect means that may be 
connected to the computer room remote 
power-off circuit.  
No such battery in the equipment. 
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