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IEC 60950-1 (ed.1)
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Page 2 of 5
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Report No. 100711
2.7.1
Suitable NEC/CEC branch circuit protection rated
at the maximum circuit rating 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.
at the maximum circuit rating 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.
N
3.2
Wiring methods (terminals, leads etc.) used for
the connection of the equipment to the mains
shall be in accordance with the NEC/CEC.
the connection of the equipment to the mains
shall be in accordance with the NEC/CEC.
Class III equipment.
N
3.2.1
Power supply cords are required to have
attachment plugs rated not less than 125% of the
rated current of the equipment.
attachment plugs rated not less than 125% of the
rated current of the equipment.
Class III equipment.
N
3.2.3
Permanent connection of equipment to the mains
supply by a power supply cord is not permitted,
except for certain equipment, such as ATMs.
supply by a power supply cord is not permitted,
except for certain equipment, such as ATMs.
Class III equipment.
N
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, and
Tables 11 and 12 of the CEC.
than 4.5m in length.
Flexible power supply cords are required to be
compatible with Article 400 of the NEC, and
Tables 11 and 12 of the CEC.
Class III equipment.
N
3.2.9
Permanently connected equipment is required to
have a suitable wiring compartment and wire
bending space.
have a suitable wiring compartment and wire
bending space.
Class III equipment.
N
3.3
Wiring terminals and associated spacings for field
wiring connections shall comply with CSA C22.2
No. 0.
wiring connections shall comply with CSA C22.2
No. 0.
Class III equipment.
N
3.3.3
Wire binding screws are not permitted to attach
conductors larger than 10 AWG (5.3 mm
conductors larger than 10 AWG (5.3 mm
2
).
Class III equipment.
N
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% of the equipment rating, and
specially marked when specified (1.7.7).
protective earthing terminals, are required to be
suitable for U.S./Canadian wire gauge sizes,
rated 125% of the equipment rating, and
specially marked when specified (1.7.7).
Class III equipment.
N
3.4.2
Motor control devices are required for cord-
connected equipment with a motor if the
equipment is rated more than 12 A, or if the
motor has a nominal voltage rating greater than
120 V, or is rated more than 1/3 hp (locked rotor
current over 43 A).
connected equipment with a motor if the
equipment is rated more than 12 A, or if the
motor has a nominal voltage rating greater than
120 V, or is rated more than 1/3 hp (locked rotor
current over 43 A).
No such motors in the
equipment.
equipment.
N
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.
circuit breakers are required to have the “on”
position indicated by the handle in the up
position.
No switch acting as disconnect
device.
device.
N
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