Industrial Functional Safety Standards; Nfpa 85 Requirements; Nfpa 86 Requirements - Allen-Bradley AADvance T9110 Safety Manual

Industrial Functional Safety
Standards
AADvance is designed to meet the following industrial safety system
requirements:

NFPA 85 Requirements

NFPA 85:2015 provides minimum requirements for the design, installation,
operation and maintenance of large commercial industrial boilers, heat
recovery, heat recovery steam generators and related combustion systems. The
AADvance system is certified for use with NFPA 85 compliant systems.
The systems should be integrated in accordance with NFPA 85. In particular
the following shall be applied:
• independently and directly actuate the safety shutdown trip relay. At
least one identified manual switch shall be located remotely from the
boiler where it can be reached in case of emergency.
• The burner management system shall be provided with independent
logic, independent input/output systems, and independent power
supplies and shall be a functionally and physically separate device from
other logic systems, such as the control system for the boiler or heat
recovery steam generator.
• Logic sequences or devices intended to cause a safety shutdown, once
initiated, shall cause a burner or master fuel trip, as applicable, and shall
require operator action prior to resuming operation of the effected
plant. No logic sequence or device shall be permitted that allows
momentary closing and subsequent inadvertent reopening of the main
or ignition fuel valves.
• Documentation shall be provided to the owner and operator, indicating
that all safety devices and logic meet the requirements of the application.
• System response time shall be sufficiently short to prevent negative
effects on the application.
• The NFPA 85 certification is only applicable where the system is applied
in accordance

NFPA 86 Requirements

NFPA 86:2015 provides comprehensive requirements for the safe design,
installation, operation, inspection, testing and maintenance of Class A, B, C
and D ovens, dryers and furnaces. The AADvance system is certified for use
with NFPA 86 compliant systems.
Rockwell Automation Publication ICSTT-RM446N-EN-P - April 2018
AADvance Functional Safety System Implementation Chapter 4
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