The HPS-1000, high pressure sodium underwater light system, has received universal acceptance by all of the major fuel manufacturers, and has been installed in over 100 nuclear power plants throughout the US, Canada, and Europe.

The underwater HPS light, HPS-1000, features a 1,000 watt high pressure sodium light bulb that provides numerous advantages over conventional incandescent lighting when used under the same conditions. Using the same power input, the HPS underwater light provides "eight times" the light output (134,000 lumens), and lasts an average "ten times" longer. When strategically placed, the HPS-1000 easily replaces other pool lights four to one.

Fewer lights are required to illuminate a spent fuel pool or reactor vessel, and because of infrequent bulb change outs, labor, maintenance, and human exposure to radiation are dramatically reduced, (ALARA). The HPS-1000 is an excellent choice as a reactor vessel light, spent fuel light or for any large underwater lighting needs you may have.

Intrinsic to the design of the HPS-1000 bulb assembly is a patented outer quartz envelope which acts as a protective thermal barrier. This prevents the bulb from cracking if the operating lamp is immersed in water. The HPS-1000 light head assembly may be used underwater and for wet/dry operations.

Comprised of a light head assembly, ballast power supply, and mounting poles, all components are constructed of electro-polished stainless steel and designed to accommodate track-mounting fixtures, suspension hooks, and dual mounting T-bars. Smooth surfaces allow for easy decontamination.

80-50000-01
Underwater Ballast

The HPS-Droplight bulb lasts up to ten times longer and produces eight times more light than conventional incandescent bulb which means there is less maintenance. There is no filament to break, and an outer quartz envelope surrounds the bulb’s sodium arc tube providing a thermal barrier which allows the light to go from air into water while in operation without damage to the bulb. Although the HPS underwater light systems are designed for in-air to underwater use, the HPS droplight systems are not designed for continuous in-air applications. A stainless steel screen surrounding the bulb offers additional protection, and a removable stainless steel reflector directs the light beam. Another benefit to the 1000 watt system is that it offers an optional stainless steel side reflector, as shown on the lower left, and is designed to sit in the flow holes for stability.

Smooth surfaces allow for easy decontamination. The detachable power cable is constructed of flexible IEEE-383 rated polyurethane which is radiation tolerant and easy to decontaminate. A separate ballast is housed in an aluminum enclosure and can be mounted to a high density polyethylene platform with the optional cable reel. The cable reel neatly manages the power cord and allows it to be dispensed as required by the job.

We've increased the versatility of our standard HPS underwater light, the HPS-1000, high pressure sodium lighting system, by mounting its light head assembly to a short "Stubby" platform and attaching two motorized positioning devices to its reflector. In this configuration the light head and reflector can be positioned or adjusted via a remote control unit.

Nicknamed "Super Stubby", this modified version of the HPS-1000 spent fuel pool light incorporates the same 1000 watt high pressure sodium bulb. With a light output of 140,000 lumens, it provides "eight times" the light output of conventional incandescent light bulb and lasts an average "ten times" longer.

Intrinsic to the design of the light's bulb assembly is a patented outer quartz envelope which has received universal acceptance by all of the major fuel manufacturers. The envelope acts as a protective thermal barrier that will not crack if the operating lamp is immersed in water.

"Super Stubby" provides optimum illumination for many refueling operations including disassembly of upper internals, head lift, general cavity lighting, and core reload and can also be used to enhance remote viewing operations.