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Alert: Slide Gate Safety Requirements

A common question we get at the NOMMA office concerns safety requirements for slide gates. The following excerpt may help:

2) All openings of a horizontal slide gate are guarded or screened from the bottom of the gate to a minimum of 4 feet (1.2 m) above the ground to prevent a 2-1/4 inch (57.15mm) diameter sphere from passing through the openings anywhere in the gate, and in that portion of the adjacent fence that the gate covers in the open position,

3) All exposed pinch points are eliminated or guarded, and

4) Guarding is supplied for exposed rollers.

Source: Subject 325, Pg. A8, September 20, 2001. Provided by Brent Nichols, Vehicular Construction Standards Task Force Leader. Alert posted: 11/6/01


F2200 & UL 325 Support Documents

DASMA provides a collection of downloadable documents related to UL 325 and F2200. Three of their newest publications are listed below, and are available as a free download (PDF format).

TDS #370 - Rationale Behind the Provisions of ASTM F 2200 & Illustration Guidelines Based on the Provisions of ASTM 2200 (AFA Reference #6-125A) (NOMMA Reference #325-003-2000).

TDS #371 - Automated Vehicular Gate Systems: Checklist for Inspectors and Property Owners.

TDS #373 - Automated Vehicular Horizontal Slide & Swing Gates Installation Checklist.


NOMMA Support Area

The NOMMA office continues to receive calls about the new UL 325 standard. The following resources may help:

TechNotes Bulletin #5: UL 325 - Is My Driveway Gate System Compliant?

TechNotes Bulletin #6: The F2200 Gate Construction Standard

UL 325 Charts
Clear up the confusion between TYPES and CLASSIFICATIONS, and learn the requirements of each. This document should answer most of your questions.

UL 325 Overview and Common Questions
Is there a difference between an "ETL Listed" and "UL Listed" gate operator? Get the answer to this question and more.

Automated Gate Construction Standard
See the latest draft document on gate construction standards. An industry coalition, that includes NOMMA, AFA, and DASMA, has worked on this document since 1998. It is now in the final stages.

Purchasing UL 325
The entire UL 325 document is available for sale from a third party. Hard copy price: $974. For ordering information, contact:

Global Engineering Documents
15 Inverness Way East
Englewood, CO 80112
Phone: (800) 624-3974. Fax: (303) 792-2192.
E-mail: global@ihs.com.
www.global.ihs.com

DASMA Technical Bulletins
The Door & Access Systems Manufacturers Association (DASMA) puts out a variety of helpful Technical Bulletins. Direct links to some of their relevant technical documents are below (.pdf format).

TDS #352 - Automatic Vehicular Gate Operating Systems

TDS #353 - Gate Operators and the UL 325 Standard

TDS #354 - Loop Systems and Depth in Road Pavements

TDS #356 - UL 325 And Gate Installations

TDS #357 - Commerically Available Non-Contact Photoelectric Sensors

TDS #358 - Gate Operators And OSHA Requirements

TDS #359 - Gate Operators and NEC Provisions

TDS #360 - Placement of Gate Operator Controls

 

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