cross-connection

cross-connection

1. A connection between two otherwise separate piping systems, one containing potable water and the other water which may be contaminated.
2. In a fire-protection system, a piping connection from a siamese connection to a standpipe or to a sprinkler system.
References in periodicals archive ?
With this service, networks connected to DE-CIX New York can peer with networks locally connected on DE-CIX European Internet Exchanges without having to buy transport, a remote port or even a local cross-connection.
The IEPA requires every public water supply to have a comprehensive cross-connection control program.
Among the topics are operator mathematics, hydraulics, pipe, water main installation and rehabilitation, fire hydrants, electrical and instrumentation-and-control systems, pumps and pumping stations, basic chlorination, backflow prevention and cross-connection control, and public relations.
Weidmuller says the new TERMSERIES modules can instantly switch the full 16 A load current thanks to the integrated cross-connection system.
Minimising the time taken to make and break these connections can dramatically improve productivity by decreasing machine down time and also eliminating risks caused by cross-connection.
But what you needed was someone who studied species, read Malthus, and had the ability to make a cross-connection.
Town Administrator John McAuliffe notified the board that 98 percent of hydrant flushing was complete through town but that there was a concern about water cross-connection, which has to do with water containing chemicals from businesses such as beauty salons and restaurants.
According to Huawei, as the industry's first nodal IP microwave product, OptiX RTN 980 enables the smooth evolution from TDM to All-IP by supporting high-throughput IP convergence with 14 directions and TDM and packet data universal cross-connections. At only 5U (or 22 cm) in height, the compact OptiX RTN 980 has a 22-Gb/s packet cross-connection capacity that is able to support high-density microwave deployments, the company said.
Also, the setup described by the complainant from the Orange County "life mastery" seminar involved the potential for cross-connection between potable and nonpotable water.
A spokesman said: "That pipe should only carry surface water, and we can confirm that the pollution to the River Tyne was caused by an illegal cross-connection of pipework.
Updated to include new information on US, state and federal regulations, the guide also covers maintaining quality, operation and maintenance, the water main pipe, distribution system valves, water main installation, backfilling and main testing, fire hydrants, water storage, water services, water meters, cross-connection control, pumps and motors, water wells, safety, security, emergency preparedness, instrumentation and control, maps and records, public relations, distributions mathematics and hydraulics.