The little screw is referred to as a special fastener and is a safety feature required for a Class/Division, ATEX, and MSHA certification.
The use of a special fastener is required for certification of lighting products used in hazardous locations. Commonly referred to as a “set screw” or “locking screw,” this special fastener is typically found on the battery compartment enclosure.
Manufacturers of products intended for use in hazardous locations must meet the specialty fastener requirements set forth by both North American and international safety committees.
- UL 913 Eighth Edition Section 5.5
- MSHA ACRI2001 Section 9.3.10.2.2 and 9.3.14.3
- EN/IEC 60079-0 Section 9.2 Special Fasteners
- EN/IEC 60079-11 Section 7.4.8 (a, b & c)
This special fastener/tool requirement is intended to prevent the exchange of batteries using common items such as coins or fingernails while working in a hazardous atmosphere. Therefore, battery replacement for Intrinsically Safe (IS) products is only performed in an area known to be non-hazardous.
The quality of your lighting equipment is vital in potentially explosive environments. You must ensure your lighting is manufactured by a reputable company with documented experience in creating IS products. The ideal situation would be to purchase all of your IS lighting products from a single manufacturer rather than mixing and matching products from several companies. A single source manufacturer ensures consistent quality and safety across the entire product line. Because of the knowledge, time, and expense required to engineer and produce IS products, a very limited number of companies can achieve this.
Nightstick, a global manufacturer of intrinsically safe, professional, portable LED lighting products that exceed industry standards in performance, quality, and user safety, has over fifty IS products to meet your needs. From pocket-sized penlights to wide-area floodlights, for use above ground or below ground, Nightstick has you covered. You can focus on completing your job with confidence, knowing your equipment was designed and rated for the highest safety levels when your Life Depends on Light, choose Nightstick!
Find the certification level you require with our Light Finder tool at nightstick.com/lightfinder
