ul standard revisions and proposals, tri-national standard harmonization activities,

7/27/2019 UL Standard Revisions and Proposals, Tri-national Standard Harmonization Activities,

1/31

UL and the UL logo are trademarks of UL LLC 2013

UL Standard Revisions andProposals, Tri-national

Standard HarmonizationActivities, New ServiceOfferings and Changes to the

2014 edition of the NationalElectrical Code

Presented by Anthony Tassone

241

Internatio

nalWire&CableSympo

sium

Proceedings

ofthe62ndIWCSConference


2/31

Agenda

Standard Proposals

Recent Standard Revisions Harmonization Activities

Service Offerings

2014 NEC

2

242

Internatio

nalWire&CableSympo

sium

Proceedings



3/31

Standard Proposals243

InternationalWire&CableSympo

sium

Proceedings



4/31

The Standard for Appliance Wiring Material UL

758 - Addition of IEC 60332-1, -2 Flame Testing

UL 62368 is an information technology equipment (ITE) standard that

will eventually replace UL 60950 and UL 60650. In UL 62638, variousclauses reference the IEC 60332-1 and 60332-2 small scale flame

tests for wiring. Appliance Wiring Material (AWM) is typically used as

the wiring for products covered by UL 62638. However, UL 758 does

not contain the option to perform the IEC 60332-1 and -2 tests onAWM. A proposal has been made to provide the option. Comments

were due 9/23/2013.

4

244


sium

Proceedings



5/31

Standard for Optical Fiber Cables

UL 1651

A proposal was recently prepared to the Standards Technical Panel

(STP) to revise UL1651 to specify a minimum 60C rating.

Article 770.179 of the NEC was previously revised to require Optical

Fiber cables have a temperature rating of not less than 60 C.

5

245


sium

Proceedings



6/31

Standard for Photovoltaic Wire -UL 4703

UL will soon be publishing the first edition of the Standard for

Photovoltaic Wire, UL 4703. Prior to this new standard, UL published

an Outline of Investigation covering these wires.

Major differences between the outline and the new standard are the

elimination of the use of 1350 aluminum conductors and the addition of

non-jacketed multiple conductor assemblies of PV wires.

6

246


sium

Proceedings



7/31

Recent Standard Revisions247


sium

Proceedings



8/31

Reference Standard For Electric Wires,

Cables and Flexible Cords - UL 1581

Addition of new material for use in high temperature (300C) AWM

A thermoplastic epitaxial co-crystallized alloy perfluoropolymer materialhas been added.

8

248


sium

Proceedings



9/31

Standard for Nonmetallic-Sheathed

Cables UL 719 - Deletion of the ConductorPullout Test

The conductor pullout test formerly conducted on 1410 AWG flatType NM-B containing 2 or 3 circuit conductors with a grounding

conductor has been deleted from the standard

The available of new jacket stripping tools replacing the traditional

box cutter, the cable construction permitting a reduced effort to pull

the cable through joists during installation, and the requirements for

cable securement were the rational supporting the proposal.

9

249

InternationalWire&CableSymposium

Proceedings

ofthe62ndIWCSConfe

rence


10/31

Electrical Power and Control Tray Cables with

Optional Optical-Fiber Members UL1277 -Addition of DC Dielectric Voltage Withstand Test

UL 1277, the Standard for Electrical Power and Control Tray

Cables with Optional Optical-Fiber Members, now includes a DCdielectric voltage-withstand test in addition to the AC test previously

required.

UL 44 and UL 83 permit either AC or DC voltage for the dielectric

voltage-withstand test.

This DC test, conducted on finished reels of cable, requires that the

test be performed using a DC voltage equal to 3 times the required

AC voltage.

10

250


Proceedings

ofthe62ndIWCSConfe

rence


11/31

Harmonization Activities251


Proceedings

ofthe62ndIWCSConfe

rence


12/31

Standard for Flexible Cords and Cables

UL 62

Major revisions include:

Addition of odd AWG sizes up to and including 3 AWG Addition of requirements for EV cables

12

252

Internation

alWire&CableSymposium

Proceedings

ofthe62ndIWCSConfe

rence


13/31

Standard for Cord Sets and Power-Supply

Cords UL 817

The formal CANENA binational effort to harmonize UL 817 and CSA

C22.2 No. 21, Cord Sets, has been terminated.

The project will be replaced by a UL standard and a separate CSA

standard that are based on the current harmonized and balloted

binational draft of the standard from this year.

The time required to revise a harmonized standard is non-conducive

to the current needs of the industry.

There has been little involvement from Industry in recent years on

the Technical Harmonization Committee (THC) with only one or two

main supporters.

13

253

Internation


Proceedings

ofthe62ndIWCSConfe

rence


14/31

Standard for Thermoplastic-Insulated

Wires and Cables UL 83 and Standard forThermoset-Insulated Wires and Cables

UL44

UL is continuing to resolve the ballot recirculation comments

obtained as a result of the April 19, 2013 proposed new editions of

UL 44 and UL 83.

14

254

Internation


Proceedings

ofthe62ndIWCSConfe

rence


15/31

Standard for Wire and Cable Test

Methods UL2556

Incorporation of methods currently found in CSA C 22.2 No 0.3 into

UL/CSA/ANCE 2556

15

255

Internation


Proceedings

ofthe62ndIWCSConfe

rence


16/31

New Service Offerings256

Internation


Proceedings

ofthe62ndIWCSConfe

rence


17/31

Small Scale Flame Rated Wire

This cable is intended for use as an external interconnecting cable in

lengths not more than 3.05 meters used with UL 60950-1 and/or UL

62368-1 equipment.

These external cables are intended to connect to SELV/LPS (UL

60950-1 circuit designations) and ES1/PS2 or LPS (UL 62368-1 energy

source designations).

This wire/cable has only been evaluated in accordance with UL 2556,

VW-1 flame test.

FT1 also covered

17

257

Internation


Proceedingsofthe62ndIWCSConfe

rence


18/31

AWM Compounds

The materials covered under this category are intended for further

processing as components of complete Appliance Wiring Material

(AWM) constructions.

These compounds have been investigated and are considered suitable

for use as an insulation, covering or jacket of an AWM, subject to the

ratings indicated for the specific grade.

These compounds have been tested in accordance with the methods

outlined in ANSI/UL 758, Standard for Appliance Wiring Material.

18

258

Internation

alWire&CableSympos

ium


rence


19/31

Appliance Wiring Material (AWM)

Compounds - Scope

The use of these compounds in AWM is optional, not mandatory. A

manufacturer choosing to source one of these compounds will have a

reasonable level of assurance that the compound, if processed

correctly, will meet all of the requirements in UL 758 for the particular

construction.

The test program for this category will include the particularrequirements in UL 758 for the specific component (insulation,

covering, jacket) as well as analytical tests to identify or finger print

the compound. Follow-Up Services (FUS) testing of the compound will

include the analytical tests.

19

259

Internation

alWire&CableSympos

ium


rence


20/31

2014 NEC Significant Changes260

Internation

alWire&CableSympos

ium

Proceedingsofthe62ndIWCSConference


21/31

Increase in Wire Rating: 600 to 1000 V

Due to the demand for increasing voltage levels used in wind

generation and photovoltaic systems, proposals were made and

accepted to increase the maximum voltage rating of certain wiring

methods to 1000 V.

Included in the revision are the wires found in Table 310.104(A) such as

Types THW, THHN, XHHW, and RHW. Per the 2014 NEC, these

conductors may be rated up to 1000 V if Listed and marked.

A NEMA Task Force was formed in order to assess the impact on

building wire insulation thickness and performance requirements in light

of the NEC revision.

21

261

Internation

alWire&CableSympos

ium



22/31

Increase in Wire Rating: 600 to 1000 V

The NEMA Task Force extensively reviewed a spreadsheet of wire

types in UL 83 and UL 44, which summarized insulation wall

thicknesses and references to Long-Term IR, Spark test voltages, and

voltages for Dielectric-Voltage Withstand.

Overall, there is a need to determine whether performance

requirements for 600 V rated conductors can be increased to thosespecified for 1000 V rated conductors without the need to increase

insulation thicknesses.

Data is being gathered to substantiate maintaining existing insulationwall thicknesses. Proposals to revise the effected standards to include

the 1000 V requirements (if different from those for 600 V) would then

be made.

22

262

Internation

alWire&CableSympos

ium



23/31

Article 400 Flexible Cords and Cables

The NEC added two flexible cords types, HSJO and HSJOOW, to

Table 400.4 which tabulates cord types, their voltage ratings,

conductor size ranges, insulation thickness as well as other

construction details.

Cords or cables consisting of integral insulation and a jacket without

a non-integral grounding conductor (for example Type SPT-1) shallbe permitted to be green.

23

263

Internation

alWire&CableSympos

ium



24/31

Article 400 Flexible Cords and Cables

400.7(11)Allows for flexible

cord in the way of an

extension cord to provide

power to an inlet in a wall

which in turn provides power

to a chapter 3 wiring method

that is connected to an outletin the wall behind a flat screen

television.

24

264

InternationalWire&CableSympos

ium



25/31

Article 625 Electric Vehicle Charging

Systems

Clarification of the power supply cord requirements for cord

connected equipment (625.17(A)) and output cable to the vehicle

(625.17(B))

25

265


ium



26/31

Article 690 Solar Photovoltaic Systems

According to 690.31 (C)(2) - PV source circuits and PV output

circuits using single-conductor cable listed and labeled as

photovoltaic (PV)wire of all sizes, with or without a cable tray

marking/rating, shall be permitted in cable trays installed in

outdoor locations, provided that the cables are supported at

intervals not to exceed 12 in. and secured at intervals not to exceed

4.5 ft.

According to 690.31(D) - Multiconductorcable Type TC-ER or

Type USE-2shall be permitted in outdoor locations in PV inverter

output circuitswhere used with utility interactive inverters mounted

in locations that are not readily accessible. The cable shall be

secured at intervals not exceeding 6 ft. Equipment grounding for the

utilization equipment shall be provided by an equipment grounding

conductor within the cable.

26

266


ium

Proceedingso

fthe62ndIWCSConference


27/31

Article 725 Power Limited Circuits

Rearrangement of articles to be consistent with Article 800 for

installation and application requirements

Addition of cable routing assemblies

27

267


Proceedingso



28/31

Article 728 Fire Resistive Cable Systems

New article covering the installation of fire-restive cables, conductors

and other system components

28

268


Proceedingso



29/31

Article 770 Optical Fiber Cables

Direct burial requirements were added for conductive Optical Fiber

cables in Article 770.47(B). The direct buried conductive optical fiber

cables shall be separated from conductors of electric light, power ornon-power limited fire alarm circuit conductors or Class 1 circuit.

(Currently there are no Listed direct burial Optical Fiber cables)

Correlation markings were added for field assembled cables(770.179). The covering of the field assembled optical fiber cable

shall have a surface marking that indicates the specific optical fiber

conductors for which it is listed and the optical fibers shall have the

correlating marking.

29

269


Proceedingso

fthe62ndIWCSConfer

ence


30/31

Article 800 Communications Circuits

Articles 800, 830,

840 (Table 154a) were revised

to state that

Plenum Rated Cable

Routing Assemblies

are not permitted inenvironmental air spaces(plenum).

30

270


Proceedingso

fthe62ndIWCSConfer

ence


31/31

Thank you271


Proceedingso

fthe62ndIWCSConfer

ence

ul standard revisions and proposals, tri-national standard harmonization activities,

Documents