Morning Guys,
Thank you for your replies This is the item in question – apologies If I am not permitted to post a link. https://www.digikey.co.uk/en/products/detail/mpd-memory-protection-devices/BH34AAW/1987384 The data sheet states : “Wire - 26 AWG, UL1007, CSA - TR-64, 300V, 80° C.” EN62368-1 asks for a VW-1 rated wiring as the batteries form a PS2 source. I am trying to cross reference / check the different standards to confirm compliance. Regards Steve Clarke Test Engineer Unit 3 Compliance Ltd EMC : Electrical Safety : Environmental & Vibration : CE & UKCA : Consultancy www.unit3compliance.co.uk <http://www.unit3compliance.co.uk/> | step...@unit3compliance.co.uk <mailto:step...@unit3compliance.co.uk> | +44(0)1274 911747 2 Wellington Business Park, New Lane, Bradford, BD4 8AL Registered in England and Wales # 10574298 From: Chuck August-McDowell <chu...@meyersound.com> Sent: Tuesday, October 31, 2023 11:02 PM To: Stephen Clarke [U3C] <step...@unit3compliance.co.uk> Cc: ri...@ieee.org; EMC-PSTC@LISTSERV.IEEE.ORG Subject: RE: [PSES] UL1007 vs VW-1 Flammability ratings Hi Steve, I think you meant UL 1007 Style wire and VW-1 flammability testing. This is common in USA, Most UL 1007 Style wire is duel rated to Style 1569 also. The UL standard for Appliance Wiring Material (AWM) is UL 758. “UL Standard 758 Appliance Wiring Materials was developed to consolidate general requirements for AWM, and standardize methods of evaluation. The standard includes performance requirements and methods for testing tensile strength and elongation, spark testing and dielectric voltage withstand. UL 758 also regulates marking and labeling of AWM products.” The “style” number describes a construction that wire manufactures can make. Standardization of AWM. We use Style UL 1007 / Style 1569 for Internal wiring with details on construction at the bottom of this note. Generally, a manufactures datasheet for style UL 1007 / 1569 will note that it is also marked “VW-1“ or noted in compliance section Flammability / Reaction to Fire: VW-1 For an example google “Belden 9918” or “Alpha Wire 3055” The Alpha wire marking is: ALPHA WIRE E163869- RU AWM STYLES 1569 105C OR 1007 80C VW-1 300V 18 AWG --- The UL Style 1007 construction is; Single Conductor with extruded insulation RATING 80 deg C, 300 Vac, Horizontal flame. Optional - 60 deg C or 80 deg C Oil. CONDUCTOR 32 AWG - 16 AWG, Solid or Stranded. INSULATION Extruded PVC, 15 mils minimum average thickness, 13 mils minimum thickness at any point. STANDARD Appliance Wiring Material UL 758. MARKING General. USE Internal wiring of appliances. Tags may indicate the following: 600 V Peak - For Electronic Use Only. Style 1569 construction is; Single Conductor with extruded insulation RATING 80, 90 or 105 deg C, 300 Vac, Horizontal flame. CONDUCTOR 30 AWG - 2 AWG, solid or stranded. INSULATION Extruded PVC. Conductor size Minimum average thickness Minimum thickness at any point 30-10 AWG 15 mils 13 mils 9-2 AWG 30 mils 27 mils COVERING Optional, Extruded PVC, 9 mils minimum average thickness, 8 mils minimum thickness at any point. STANDARD Appliance Wiring Material UL 758. MARKING General. USE Internal wiring of appliances or electronic equipment where not subjected to movement or mechanical damage. Tag may also indicate the following, "600 Volts Peak for Electronic Use Only." Hopefully that is helpful. Chuck in Berkeley From: Richard Nute <ri...@ieee.org <mailto:ri...@ieee.org> > Sent: Tuesday, October 31, 2023 11:55 AM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] UL1007 vs VW-1 Flammability ratings [THIS EMAIL IS FROM AN EXTERNAL SENDER] Hi Steve: I thought UL 1007 was the UL standard for wire. I was wrong. UL 1007 is for prefabricated assemblies that are installed in the field. UL 1007 does not mention flammability of wire insulation. A UL standard for wire is UL 2556; it does not include requirements for surface printing. I suggest you examine the wire for surface printing. At the very least, the surface printing will include the UL file number. Using this number, you can go to the UL website and look up the file which will include the flammability rating of the insulation. If you are lucky, the surface printing will include the insulation flammability rating. Or, you can go to the wire manufacturer web site where you can find the wire insulation flammability rating. Or, ask the battery box manufacturer for a copy of his UL or CE report. This *may* include data about the wire. Boo! Happy Halloween! 😊 Richard Bend, Oregon https://www.radix-wire.com/products/vw-1/vw-1-flame-rating-requirements/ From: Stephen Clarke [U3C] <step...@unit3compliance.co.uk <mailto:step...@unit3compliance.co.uk> > Sent: Tuesday, October 31, 2023 1:15 AM To: ri...@ieee.org <mailto:ri...@ieee.org> ; EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: RE: [PSES] UL1007 vs VW-1 Flammability ratings Hi Richard, EN62368-1 asks for Flammability of VW-1 But the manufacturers data sheet states UL1007 for the wiring I am trying to compare to see if they are equivalent or similar. Regards Steve Clarke Test Engineer Unit 3 Compliance Ltd EMC : Electrical Safety : Environmental & Vibration : CE & UKCA : Consultancy www.unit3compliance.co.uk <http://www.unit3compliance.co.uk/> | step...@unit3compliance.co.uk <mailto:step...@unit3compliance.co.uk> | +44(0)1274 911747 2 Wellington Business Park, New Lane, Bradford, BD4 8AL Registered in England and Wales # 10574298 From: Richard Nute <ri...@ieee.org <mailto:ri...@ieee.org> > Sent: Monday, October 30, 2023 6:07 PM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: Re: [PSES] UL1007 vs VW-1 Flammability ratings Hi Steve: VW-1 is roughly equivalent to V-1 except applies to wire. Richard Bend, Oregon From: Stephen Clarke [U3C] <step...@unit3compliance.co.uk <mailto:step...@unit3compliance.co.uk> > Sent: Monday, October 30, 2023 8:50 AM To: EMC-PSTC@LISTSERV.IEEE.ORG <mailto:EMC-PSTC@LISTSERV.IEEE.ORG> Subject: [PSES] UL1007 vs VW-1 Flammability ratings Hello Experts I have a battery box that has wiring to UL1007. I can see that UL1007 has a vertical flame test requirement. How dose this compare with UL VW-1 ? Regards Steve Clarke Test Engineer Unit 3 Compliance Ltd EMC : Electrical Safety : Environmental & Vibration : CE & UKCA : Consultancy www.unit3compliance.co.uk <http://www.unit3compliance.co.uk/> | step...@unit3compliance.co.uk <mailto:step...@unit3compliance.co.uk> | +44(0)1274 911747 2 Wellington Business Park, New Lane, Bradford, BD4 8AL Registered in England and Wales # 10574298 _____ This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. 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