NFPA 79 - 2021 LAPP review

NFPA 70 2020 & NFPA 79 2021

NFPA 70 – 2020 Edition

 The National Electric Code (NFPA 70) defines requirements for new electrical installations for any building, structure or premises. This code is used as the primary reference guide in the US by the Authority Having Jurisdiction (AHJ) to insure compliance with electrical installation requirements

NFPA 79 – 2021 Edition

 Electrical Standard for Industrial Machinery, applies to electrical/ electronic equipment, apparatus, or systems of industrial machines operating at a voltage of 1000 volts or less, commencing at the point of connection of the supply to the electrical equipment of the machine.  LAPP USA has actively attended and participated in NFPA 79 committee meetings for over 15 years

January 20, 2021

NFPA 79 2021: Chapter 1 – Administration

Excerpt from NFPA 79 - 2021 Edition

LAPP Interpretation

 NFPA 79 refers back to NFPA 70 (NEC) in areas requiring further explanation that are not clearly defined in NFPA 79

 NFPA Article 336 defines UL Listed TC-ER (tray cable) permitting installation within cable trays of the industrial infrastructure in addition to the industrial platform.

Examples: ÖLFLEX ® Tray II, Control TM, VFD Slim, VFD 2XL, Servo 7TCE, etc.

January 20, 2021

NFPA 79 2021: Chapter 4 – Power Conversion Equipment

Excerpt from NFPA 79 - 2018 Edition

 All LAPP VFD & Servo Cables are compliant with the NFPA 79 2018 edition



1XL series - XHHW-2 and 2XL series – RHW-2

 SLIM series including FD VFD – Specified based on equipment manufacturers instructions (project engineers, consultants, contractors, integrators, drive specialists, etc.)

Excerpt from NFPA 79 - 2021 Edition

NFPA 79 2021 edition Ch. 4, paragraph 4.4.2.8 changes

 Removal of specific cable markings (RHH, RHW, RHW-2, XHH, XHHW or XHHW-2)

 Instead, cable and conductors selection to be in accordance with:

 Equipment manufacturer’s recommendations and instructions

 Chapter 12 – Conductors, Cables and Flexible Cords

LAPP is an active NFPA member. In recent committee meetings, LAPP served an instrumental role leading to the above clarification and changes to the section 4.4.2.8

 All LAPP VFD & Servo Cables products continue to comply with the NFPA 79 2021 edition

“LAPP’s UL CTDP and CSA SMTC laboratory validates our VFD & Servo products for compliance to UL/CSA design and safety standards referenced in NFPA 70 (NEC) and NFPA 79 and the CEC.”

January 20, 2021

NFPA 79 2021: Chapter 12 – Conductors, Cables, and Flexible Cords

Excerpt from NFPA 79 - 2021 Edition

LAPP Interpretation

 Other Listed cables such as TC-ER, PLTC-ER, ITC-ER, CMG already permitted within the industrial infrastructure can also be used on the industrial platform. Examples: ÖLFLEX ® TRAY II, UNITRONIC ® 300, BUS CAN Tray, etc .  Appliance Wiring Material (AWM) is permitted on the industrial platform where it has been identified for use with approved equipment and used per the manufacturer’s instructions. Examples: ÖLFLEX ® 490 P, 590 P, FD 90, Servo 9YSLCY-JB, etc.

January 20, 2021