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October 31, 2013
October 31, 2013
SUMMARY OF REQUIREMENTS
FOR
UL 61058-1, 4th, last revised February 15, 2013
(Switches for Appliances – Part 1: General Requirements)
This document is derived from the following Standard Development
Organization (SDO) bulletin(s) or other documentation publicly available to UL
subscribers:
Standard Development
Organization (SDO)
UL
Document Type
(proposal, bulletin, etc)
Standard
Primary motivator for the
Standards revision
Document
Designation
UL 61058-1, Ed 4th
Date
February 15,
2013
Harmonization to IEC standard.
CCNs Impacted
WOYR2, WOYR3
The following is a summary of actions which may be necessary to convert presently
certified UL 1054 switches to UL 61058-1. The revised/new certification requirements
Section
Action
Summary of requirements
Paragraph
Clause
Old requirements = UL1054;
New requirements = UL 61058-1
Since the test methods, the test sequence and the
evaluation approach are completely different for UL1054 and
UL61058-1, switches presently certified to UL 1054 are
required to be completely re-evaluated in order to comply
with the requirements of UL 61058-1.
Scope:
1
Revised
The maximum rated voltage reduced from 600 V in UL1054
Requirement
to 480 V in UL61058-1.
Action required: A limited number of switches over
480 V shall be reviewed.
Subject: 1054
Section
Paragraph
Clause
5
Page 2 of 9
Summary of requirements
General notes on tests:
For dc rated switches without a polarity marking, tests shall
also be performed at reverse polarity.
«ACTIONDATE»
Action
Revised
Requirement
For the Endurance test, UL 61058-1 does not have methods
for combining different voltage ratings. The potential
between live parts and dead metal parts shall be the full test
potential.
In addition, the test sequence of UL 61058-1 is significantly
different from UL 1054. However only 3 specimens of
switches are required for endurance instead of 6 specimens
in UL 1054.
7
8
8.9
9
Action required: Test required.
Classification and Declaration:
In UL 61058-1, new classification and declaration form for
switches has been created to capture the Pollution Degree,
IPXX, Insulation Class, Disconnection, Circuit, Loads etc.,
which shall be declared by the manufacturer.
Action required: Manufacturers are required to provide
the declarations for the switches.
Marking and documentation:
UL 61058-1 has specific requirements for
marking/documentation. The symbols used and types of
loads for the markings/documentation are different from
UL 1054.
Action required: Markings and documentation
information are required to provide to verify its
compliance with the new requirements and switch
declarations.
Rubbing test:
Marking legible and durable test is required for printed
marking.
Action required: Test required.
Protection against electric shock:
The switch shall be constructed so that there is adequate
protection against contact with live parts in any position of
use when the switch is mounted and operated as in normal
use. In general, this is a simple accessibility test with a
special probe.
Action required: Test required.
Revised
Requirement
Revised
Requirement
New
Requirement
New
Requirement
Subject: 1054
Section
Paragraph
Clause
10
11
Page 3 of 9
Summary of requirements
Provision for earthing:
Switches intended for use in Class I appliances shall provide
a provision for earthing. A small number of appliance
switches are provided with “earthing” terminals required to
be tested.
Action required: Test required for switches providing a
safety earthing terminal.
Terminals and terminations:
Terminals shall be declared for their intended use to connect
to Prepared or Unprepared conductors. The requirements of
Terminals and termination are significantly different from UL
1054.
«ACTIONDATE»
Action
New
Requirement
Revised
Requirement
Action required: Inspection and test required.
12
Construction:
12.1 Constructional requirements relating to protection
against electric shock.
12.2 Constructional requirements relating to safety during
mounting and normal operation of the switch.
12.3 Constructional requirements relating to the mounting of
switch and to the attachment of cords.
New
Requirement
Action required: Inspection and test required.
13
Mechanism:
For dc rated switches, the speed of contact making and
breaking shall be independent of the speed of actuation,
except for those switches with either a rated voltage not
exceeding 28 V or a rated current not exceeding 0,1 A.
New
Requirement
Cord-operated switch (Pull-chain switch) shall be
actuated from any one position, to the next position, by the
application and removal of a steady pull not exceeding 45 N
vertically downwards, or 70 N at 45 to the vertical, with the
switch mounted as declared.
14
Action required: Inspection and test required.
Provision against solid foreign objects, ingress of water
and humid conditions:
14.1 Protection against ingress of solid foreign objects
14.2 Protection against ingress of water
IPXX tests are carried out according to IEC 60529
Action required: Test required when declared for IP
ratings.
New
Requirement
Subject: 1054
Section
Paragraph
Clause
14.3 & 15
16
17
17.2.4
17.2.5.1
Page 4 of 9
Summary of requirements
Protection against humid conditions & Insulation
resistance and dielectric strength:
The insulation resistance and the dielectric strength of
switches shall be adequate after humidity conditions.
Action required: Test required.
Heating:
Pre-endurance heating tests consist of two heating tests.
16.2 Contacts and terminals.
The temperature rise at the terminals shall not exceed 45K.
16.3 Other parts Maximum temperature measured shall not
exceed Table 13.
Action required: Test required.
Endurance:
Endurance tests in UL61058-1 consist of two parts, Test
conditions (TC) followed by Evaluation of Compliance (TE).
After the applicable TCs, switch shall be checked according
to TE1 to TE3.
Action required: Test required.
Test condition (TC):
TC1 to TC10 are different cycling test conditions.
Depending on the type of switches, rating and type of loads,
determines which TCs are applied.
In UL 61058-1, over voltage is applied instead of overcurrent
as specified in UL1054 (except for horse power [hp] ratings).
Switches with "T" rating over 55C, 1st half of the total cycles
in rated temperature and 2nd half of the total cycles in room
temperature. If the switch has the minimum temperature
rating less the 0C, the 2nd half of the endurance shall be
tested in the minimum rated temperature which is less the
0C.
For HP ratings, Lamp ratings and TV rating referred to DVA,
DVB and DVC.
Action required: Test required.
TE1 - Functional compliance:
«ACTIONDATE»
Action
Revised
Requirement
Revised
Requirement
Revised
Requirement
Revised
Requirement
Revised
Requirement
Action required: Test required.
17.2.5.2
TE2- Thermal compliance:
Repeat the Heating in 16.2 except at rated current and room
ambient.
17.2.5.2.1.1DV
For switches intended for use in end products certified to
North American loads and Standards not harmonized to IEC
Standards, the thermal compliance (TE2) shall be
determined during the cycling testing after a minimum 6K
cycles required in the legacy North American Standards (or
greater declared by the manufacturer), with a temperaturerise of terminals not greater than 30K.
Revised
Requirement
Subject: 1054
Section
Paragraph
Clause
Page 5 of 9
Summary of requirements
«ACTIONDATE»
Action
17.2.5.2.1.2DV
For switches intended for use in end products certified to
standards harmonized to the IEC only, the TE2 may be
determined during the cycling testing, with a temperaturerise not greater than 55K.
17.2.5.3
18
19
20
20.3
20.4
Action required: Test required.
TE3- Insulation compliance:
The dielectric strength requirement of 15.3 applies with the
exception that the specimens are not subjected to the
humidity treatment before the application of the test voltage.
The test voltage shall be 75 % of pre-endurance dielectric
voltage value.
Action required: Test required.
Mechanical strength:
18.2 Impact test on accessible parts of actuating members of
the switch.
18.3 Additional pull test for Cord-operated switch
18.4 Push/Pull Test ( for actuation parts)
Action required: Test required.
Screws, current-carrying parts and connections:
19.2 Screwed connections
Screwed connections, electrical or other, shall withstand the
mechanical stresses occurring in normal use.
19.3 Current-carrying parts.
Current-carrying parts and parts in an earthing path shall be
of a metal having, under conditions occurring in the
SWITCH, adequate mechanical strength and resistance to
corrosion.
Action required: Test required.
Clearances, Creepage Distances, Solid Insulation and
Coatings of rigid printed board assemblies:
20.1 & 20.2 clearances and creepage distances shall be in
compliance with Tables 22, 23 & 24.
Action required: Compliance is checked by inspection
and by measurement.
Solid Insulation:
Solid Insulation shall be capable of durably withstanding
electrical and mechanical stresses as well as thermal and
environmental influences which may occur during the
anticipated life of the switch.
Action required: Compliance is checked by inspection
and by measurement.
Coatings of rigid printed board assemblies:
When a coating is used on a rigid printed board assemblies
to l provide protection against pollution and/or insulation
Revised
Requirement
New
Requirement
New
Requirement
Revised
Requirement
New
Requirement
New
Requirement
Subject: 1054
Section
Paragraph
Clause
Page 6 of 9
Summary of requirements
«ACTIONDATE»
Action
depending on the type A or type B coating used.
21.1
21.1DV.1.1
Action required: Compliance is checked by inspection
and by measurement.
Resistance to heat:
Parts of non-metallic material shall be resistant to heat
Compliance is checked by Ball Pressure Test.
Action required: Test required.
Long-term temperature stability:
Non-metallic material shall have the long-term temperature
stability (RTI):
Both RTI (str) and RTI (elect) of critical plastic parts shall not
less than the "T" rating of the switch.
The applicable RTI (str) and RTI (elect) according to CSA
C22.2 No. 0.17, or UL 746B, shall be determined at a
minimum thickness of 0,8 mm (0,031 in) or the minimum
thickness employed in the construction, whichever RTI value
is greater.
Action required: Minimum thickness of the plastic shall
be checked and the recognized plastic of the yellow
card (QMFZ2 plastics database).
New
Requirement
Revised
Requirement
Subject: 1054
Section
Paragraph
Clause
1.2 and
21.3DV.3
21.3DV
22
22
23
24
Page 7 of 9
Summary of requirements
Resistance to abnormal heat:
Parts of non-metallic material shall be resistant to abnormal
heat. Compliance is checked by GWEP or GWIT
Action required: Test required.
Flammability:
Same as UL 1054 requirement.
A non-metallic part used for an enclosure or support of a
current carrying part of the switch shall have a minimum
flammability class of V-2. A functional part other than an
enclosure or support of current-carrying parts shall have a
minimum flammability class of HB.
The flammability class shall be determined at a minimum
thickness of 0,8 mm (0,031 in) or the minimum thickness
employed in the construction, whichever is greater. Thermal
set materials such as phenolic used for enclosure or support
of current carrying parts may be rated HB.
Action required: Switches complying to the flammability
requirement in UL 1054 shall also comply to the
flammability requirements in UL61058.
Resistance to rusting:
Ferrous parts, the rusting of which might impair safety, shall
be adequately protected against rusting.
Action required: Test required.
Resistance to rusting:
Ferrous parts, the rusting of which might impair safety, shall
be adequately protected against rusting.
Action required: Test required.
Abnormal operation and fault conditions for electronic
switches:
Electronic switches shall be constructed so that the risk of
fire, mechanical damage impairing safety or protection
against electric shock as a result of abnormal condition is
prevented.
Action required: Test required.
Components for electronic switches:
Components which, if they fail, may cause risk of electric
shock or fire (for example, SELV transformers, protective
impedances, fuses, capacitors which may cause a shock
hazard, and capacitors for electromagnetic interference
suppression) shall comply either with the requirements of
this standard or with the relevant IEC component standard
as far as they reasonably apply.
Action required: Components shall be checked
according to the relevant component standards.
«ACTIONDATE»
Action
New
Requirement
None
New
Requirement
New
Requirement
New
Requirement
New
Requirement
Subject: 1054
Section
Paragraph
Clause
25
Annex A
(normative)
Annex D
(normative)
Annex K
(normative)
Annex L
(normative)
Annex M
(normative)
Annex N
(normative)
Page 8 of 9
Summary of requirements
EMC requirements:
UL 61058-1 has a National Difference indicating that EMC is
completed as part of the end product evaluation since most
electronic switches are very dependent on the supply and
specific load.
Action required: None.
Measurement of clearance and creepage distances:
Provisions additional information regarding measurement of
clearance and creepage distances
Action required: Declaration is required from the
manufacturer and check according to Clause 20.
Proof tracking test:
Optional test to replace CTI of the plastic in any given
conditions.
Action required: Declaration is required from the
manufacturer. Check the CTI of plastic materials and
test may be required.
Impulse Withstand Voltage:
Declare the Impulse Withstand based on working voltage
and Overvoltage category.
Action required: Declaration is required from the
manufacturer.
Pollution Degree Micro Inside switch environment:
Identify the pollution degree inside a switch normal operating
environment. This determines the spacing requirements for
live parts inside the switch enclosure (specifically Ridged
Printed Boards PWB) and is based on how well the switch
enclosure is sealed.
Action required: Declaration is required from the
manufacturer.
Impulse voltage test:
Optional test for smaller clearance.
Action required: Declaration is required from the
manufacturer and check according to Clause 20.
Altitude correction factors:
As the dimensions given in Table 22 are valid for altitudes up
to and including 2 000 m above sea-level, clearance for
altitudes above 2 000 m shall be multiplied by the altitude
correction factor
Action required: Declaration is required from the
manufacturer and check according to Clause 20.
«ACTIONDATE»
Action
New
Requirement
Revised
Requirement
New
Requirement
New
Requirement
New
Requirement
New
Requirement
New
Requirement
Subject: 1054
Page 9 of 9
«ACTIONDATE»
Section
Paragraph
Clause
Annex P
(normative)
Types of coatings for rigid printed board assemblies:
Type A and Type B coating on the printed wiring board.
New
Requirement
Annex Q
(normative)
Action required: Declaration is required from the
manufacturer and check according to Clause 20.
Measuring the insulation distance of a coated printed
board with Type A coating:
New
Requirement
Annex U
(normative)
Annex DVA
(normative)
Summary of requirements
Action required: Declaration is required from the
manufacturer and check according to Clause 20.
Dimensions of tabs forming part of a switch:
Tab dimensions shall be made according to Annex U.
Tabs provided with dimensions that are not in accordance to
Annex U, shall be evaluated as specified in Clause 11.2.5.
Action required: Measurement of tab terminal is
required.
Horsepower rated switches:
Test program different from UL1054.
Action
Revised
Requirement
Revised
Requirement
Annex DVB
(normative)
Action required: Test required.
Tungsten-filament-lamp and synthetic loads:
The inrush current of the lamp load and the test program for
"VL" and "VT" rated switches are different from UL1054.
Revised
Requirement
Annex DVC
(normative)
Action required: Test required.
Television switches:
The inrush current of the lamp load and the test program for
TV rated switches are different from UL1054.
Revised
Requirement
Annex B,
Annex F,
Annex H,
Annex S,
Annex T,
Annex V,
Annex DVD
Action required: Test required.
Informative annexes:
Informative annexes give additional information intended to
assist the understanding or use of the document.
Compliance is not required.
Action required: None.
New
Requirement