Effective November 30, 2017
Effective Date (see Schedule below): November 30, 2017
Impact Statement: A review of all Listing Reports is necessary to determine which products comply with new/revised requirements and which products will require re-evaluation. NOTE: Effective immediately, this revised standard will be exclusively used for evaluation of new products unless the Applicant requests in writing that current requirements be used along with their understanding that their listings will be withdrawn on Effective Date noted above, unless the product is found to comply with new/revised requirements.
Overview of Changes: These revisions for ANSI/UL 858 include Changes to Polymeric Materials Specification and Nichrome Wire Evaluation. Specific details of new/revised requirements are found in table below.
If the applicable requirements noted in the table are not described in your report(s), these requirements will need to be confirmed as met and added to your report(s) such as markings, instructions, test results, etc. (as required).
Schedule: So that shipping of products with Listing Marks will not be interrupted, an approximate schedule has been established to ensure Listing Reports are found compliant by Effective Date:
Fees: An initial review of Listing Report (s) will be covered by a direct billing project and will be invoiced at not more than $1000 per report.
Client Action Required:
Information – To assist our Engineer with review of your Listing Reports, please submit technical information in response to the new/revised paragraphs noted in the attached or explain why these new/revised requirements do not apply to your product (s).
Current Listings Not Active? – Please immediately identify any current Listing Reports or products that are no longer active and should be removed from our records. We will do this at no charge as long as Intertek is notified in writing prior to the review of your reports.
|10.24.1||All electrical connections where the total circuit load is greater than 60 W during normal operation shall:|
a) Comply with 10.24.3, 10.24.4, and 10.24.5, or
b) Be evaluated as specified in Abnormal Operation – Nichrome Wire Test, Section 77A
|10.24.3||With reference to 10.24.1, components such as wire, tubing, sleeving, or tape that are located within 3 mm of an electrical connection shall have a flammability classification as follows:|
a) VW-1 for wire evaluated in accordance with the Reference Standard for Electrical Wires, Cables, and Flexible Cords, UL 1581;
b) VW-1 for tubing and sleeving evaluated in accordance with the Standard for Extruded Insulating Tubing, UL 224 or the Standard for Coated Electrical Sleeving, UL 1441; or
c) Evaluated in accordance with the Standard for Polyvinyl Chloride, Polyethylene, and Rubber Insulating Tape, UL 510 for flame-retardant insulating tape.
|10.24.4||With reference to 10.24.1, polymeric materials located within 3 mm of an electrical connection shall have a flammability classification as follows:|
a) A minimum V-0 or VTM-0, in accordance with the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, or
b) A minimum SC-0 or SCTC-0, in accordance with Standard for Tests for Flammability of Small Polymeric Component Materials, UL 1694, or
c) A minimum glow wire ignition temperature (GWIT) of 775°C according to Fire Hazard Testing – Part 2-13: Glowing/Hot-wire Based Test Methods – Glow-wire Ignition Temperature (GWIT) Test Method for Materials, IEC 60695-2-13, or
d) The material withstands glow-wire test (GWT) according to Fire Hazard Testing – Part 2-11: Glowing/Hot-wire Based Test Methods – Glow-wire Flammability Test Method for End-products (GWEPT), IEC 60695-2-11 with a minimum test severity of 750°C, and during the test flames persists for no longer than 2 seconds.
|10.24.5||With reference to 10.24.1, all polymeric materials located within the envelope of a vertical cylinder having a diameter of 20 mm and a height of 50 mm, placed above the center of the connection zone and on top of the polymeric parts that are supporting current-carrying electrical connections shall have a flammability classification as follows:|
a) minimum of V-0, VTM-0, or HF-1, in accordance with the Standard for Tests for Flammability of Plastic Materials for Parts in Devices and Appliances, UL 94, and Fire Hazard Testing – Part 11-10: Test Flames – 50 W Horizontal and Vertical Flame Test methods, IEC 60695-11-10, or
b) A minimum of SC-0 or SCTC-0, in accordance with the Standard for Tests for Flammability of Small Polymeric Component Materials, UL 1694, or
c) A minimum VW-1 for wire, tubing, sleeving and tape in accordance with 10.24.2 (a), (b), and (c).
|77A||Info||Abnormal Operation – Nichrome Wire Test|
CUSTOMERS PLEASE NOTE: This Table and column "Verdict" can be used in determining how your current or future production is or will be in compliance with new/revised requirements.