User manual

page 12 of 27 Report No. 55S072147/NCH/CZ
IEC 601 + Am. 1& 2
Clause Requirement + Test Result - Remark Verdict
TRF No. I6011__C TRF originator: UL
18 PROTECTIVE EARTHING, FUNCTIONAL EARTHING AND POTENTIAL
EQUALIZATION
P
18a Accessible parts of Class I equipment separated
from live parts by basic insulation connected to
the protective earth terminal
P
18b Protective earth terminals suitable for connection
to the protective earth conductor
Appliance inlet used. P
18e Potential equalization conductor N
- Readily accessible No connection to potential
equalization conductor.
N
- Accidental disconnection prevented in normal
use
N
- Conductor detachable without the use of a tool N
- Power supply cord does not incorporate a
potential equalization conductor
N
- Connection means marked with Symbol 9,
Table DI
N
18f For equipment without power supply cord,
impedance between protective earth terminal and
accessible metal part  0.1 
N
- For equipment with an appliance inlet,
impedance between protective earth contact and
any accessible metal part  0.1 
(See appended table18) P
- For equipment with a non-detachable power
supply cord, impedance between protective earth
pin in mains plug and accessible metal part
 0.2 
N
18g If the impedance of protective earth connections
other than in Cl. 18 f) exceeds 0.1 , the allowable
value of the enclosure leakage current is not
exceeded in single fault condition
N
18k Functional earth terminal not used to provide
protective earthing
Functional earthing terminal
not used.
N
18l Class II equipment with isolated internal screens N
- insulation of screens and all internal wiring
connected to them is double insulation or
reinforced insulation
N
- functional earth terminal clearly marked N
- explanation of functional earth terminal provided
in the accompanying documents
N