Energy Guide

Page 48 of 104 Report No.: HK2107050725-SR
UL 507
Clause Requirement + Test Result - Remark Verdict
TRF No. UL507A
31.4.6 When a protective device is used as specified in
31.4.4 or 31.4.5, this protective device shall comply
with the requirements in Section 30, Spacings, and
shall be provided with an adjacent replacement
marking and replacement instructions that include
the required voltage and current rating. The printed
wiring board, wiring, and spacings prior to the point
at which the voltage and current are suitably limited
shall comply with the requirements of this
Standard.
N/A
31.4.7 A fixed impedance (such as a component or
grouping of components in the same circuit) or a
regulating network (such as used in a switching
type power supply) meets the intent of limiting the
voltage and/or the available current in accordance
with 31.4.1. Such a fixed impedance or regulating
network shall be able to function under single
component fault conditions.
N/A
31.5 Limited energy circuit requirements N/A
31.5.1 A limited energy circuit shall be supplied by an
isolating source such that the maximum volt-
ampere capacity available to the circuit is 200 volt-
amperes or less at a maximum open circuit voltage
potential of 100 V ac. The secondary winding of an
isolating type transformer meets the intent of
compliance with this requirement. The transformer
shall comply with the requirements in the
appropriate UL Standard for Transformers.
N/A