Test Report

Report Reference No.: 50337286 001
UL 1012
Clause
Requirement – Test
Result – Remark
Verdict
Page 23 of 75
16.10
The grounding conductor shall be connected to the grounding
blade of a grounding attachment-plug and shall be connected
to dead metal parts within the frame or enclosure by means
such as a screw or stud, nut, and lockwasher. An external force
applied to the power supply cord shall not transmit stress to the
grounding connection on the frame or enclosure before the line-
voltage connections are broken.
Complied
P
16.11
A grounding connection, grounding conductor, enclosure,
frame, component mounting panel, or any other part connected
to earth ground shall not carry current except during an
electrical fault.
Complied
P
Exception No. 1: A Class 2 or an isolated limited-energy circuit
may be connected to a single-point reference ground. Current
is not to be carried through the field-equipment-grounding
connection, metallic raceway, or other grounding means.
N/A
Exception No. 2: A line by-pass capacitive impedance circuit for
a radio frequency signal circuit need not comply with this
requirement.
N/A
16.12
A grounded circuit conductor shall not be connected to any
grounding or bonding circuit or device in a power unit.
Complied
P
17
Bonding of Internal Parts
P
17.1
General
P
17.1.1
If grounding is required - see 16.1 - an exposed dead metal
part that is likely to become energized by an electrical fault
shall be bonded to the point of connection of the field-
equipment-grounding means. See 16.2 and 16.3. See also
Bonding Conductor Test, Section 57.
No bonding conductor
N/A
17.1.2
Uninsulated dead metal parts such as a cabinet, component
enclosure, and cover shall be electrically bonded together if
they might be contacted by the user or service personnel.
P
Exception No. 1: A metal panel or cover need not be bonded if
it is either:
N/A
a) Insulated from electrical components and wiring by a barrier
of vulcanized fiber, varnished cloth, phenolic composition, or
other moisture-resistant insulating material not less than1/32
inch (0.8 mm) thick and mechanically secured in place;
N/A
b) Not likely to become energized because uninsulated live
parts are enclosed and wiring is positively separated from the
panel or cover; or
N/A
c) Separated from live parts and wiring by a grounded or
bonded interposing metal barrier or part such that the metal
barrier will be the first to be subjected to an electrical fault.
N/A
Exception No. 2: An internal dead metal part need not be
bonded if it is marked as specified in 61.1.3.
N/A
17.1.3
A metal part, such as an adhesive-attached metal marking
plate, a screw, or a handle, located on the outside of an
enclosure or cabinet, need not be bonded if it is:
No such parts
N/A
a) Isolated from electrical components and wiring by a
grounded metal part so that it is not likely to become energized;
or
N/A
b) Separated from wiring and spaced from uninsulated live
parts as if it were a grounded part.
N/A