Certified Safety Shutdown System
Safe-Stop™ Safety Shutdown System
Petrohab’s Safe-Stop Safety Shutdown System (SSS) is patented by Petrohab and is the most advanced automatic shutdown system of its kind and is the only one in the world that is certified to the latest version of the pressurized rooms standard regulated by the International Electrotechnical Commission (IEC), known as IEC60079–13:2017. The Safe-Stop SSS is also third party certified to the “ATmosphère EXplosibles” standard, or “ATEX” for short.
Whereas ATEX is a European standard for the manufacturing of products that are to be used in potentially explosive atmospheres, the international IEC 60079 series is widely recognized as the most important standard governing the use of equipment used in potentially explosive atmospheres such as those found in Zone 1 & 2 classified areas.
The Safe-Stop SSS is designed to continuously monitor the desired overpressure inside the habitat and is designed to always be on the “look out” for flammable gasses such as Methane and hazardous gasses such as Hydrogen Sulphide both inside and outside the habitat. This patented SSS enhances the safety of hot work operations that are conducted in the vicinity of potential flammables or noxious gasses by shutting down the hot work operations, while leaving the intake blower on, if the habitat loses pressure or harmful gas is detected inside the habitat and shutting down the hot work operations and the air intake in the event monitored gasses are detected at the air intake.
The Main Control Unit (MCU) is the “brains” of the system, and has an electrical blower, electronic damper that is placed downstream from said blower, hot work and electrical plugs, audio and visual alarm, and an Emergency Shut Down (ESD) button.
The only other main component of the Safe-Stop SSS is a Habitat Gas Assembly (HGA) that has a low lying Hydrogen Sulphide detector, an LEL detector that can be raised to a height of up to 3 meters to detect light gas such as methane, an airlock control mechanism, an ESD, audio and visual alarm, and optional Oxygen and Carbon Dioxide Detectors.