The early chemists did not think much about their safety, as each of those scientists carried out his or her rather risky experiments. For example, there are no reports about safety concerns, in the literature that describes the first attempt at introducing an electrical discharge into a tube that had been filled with a rarefied gas.
In the absence of any unwanted response, the investigator who chose to conduct that experiment was able to issue a noteworthy report. He announced that he had made the encased gases light up.
Later, when manufacturers sought to make use of that discovery, those men too failed to think about a detail on which both manufacturers and scientists focus today. That is the safety of any industrial practice. By placing concerns about safety issues in the spotlight, those who work with or make any type of signage have been able to say this: Recycling is safe, when used with the battery operated exit sign.
Now the assurances of safer products that stemmed from introduction of a battery operated exit sign did not reflect hesitancy on the part of building owners to use any item that was powered by the electrons flowing through an electrical wire. In fact, chances for a fire were greatly reduced, by replacement of lighted candles/lamps with the newer type of lighting fixtures. However, not all chemicals produced uniform beams, after being exposed to an electrical discharge.
While manufacturers examined the glow produced by a variety of elements and compounds, following exposure to an electrical discharge, building owners discovered that it was necessary to equip the crews in any building for the possibility of an unexpected outage. During such an outage, no electrons would flow through any wire, and no current would make its way to any piece of equipment. At such a time, a battery seemed to be the logical replacement for the lost power source.
Today, the battery stored inside of an emergency exit sign can keep letters glowing for 90 minutes, in case the lights go out. Still, no attempt has been made to fit any signage with larger batteries, in hopes of prolonging the amount of time during which that emergency glow can be made to last. The absence of any effort to do away entirely with the wiring in an emergency exit sign underlines the influence of the battery’s basic nature.
Older traditional batteries are rather heavy. Even the newer and lighter ones demonstrate a characteristic associated with all but the latest batteries. Any source of chemical energy can furnish that energy for only so long. Eventually, that power source must be either recharged or replaced. That last step introduces the problem that has become the subject of so much discussion, i.e. the possible recycling of any object that relies on a battery. Today, special centers have been established for the collection of such objects. That is meant to encourage the public’s willingness to make full use of the recyclable nature of such objects.
A properly recycled self luminous exit sign product does not get tossed in a dump. If it contains a battery, the smart recycler does not let the battery’s contents leak out onto the land in the area of a dump. Therefore, an effort focused on recycling a battery operated exit sign.