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.

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References in periodicals archive ?

This system implements electrical cross-connection to achieve fast connection.

Zhongxing Telecommunications Equipment - ZTE's CE-band 96-wavelength beyond 100G system passes China IVIobile's tests -- 1/7/2019

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.

DE-CIX New York surpasses 200 network connections

The IEPA requires every public water supply to have a comprehensive cross-connection control program.

City asks St. Charles residents to respond to water use survey postcard

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.

Water Distribution: Grades 1 & 2

Weidmuller says the new TERMSERIES modules can instantly switch the full 16 A load current thanks to the integrated cross-connection system.

Range expanded

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.

Talking technical: improving productivity in injection moulding

But what you needed was someone who studied species, read Malthus, and had the ability to make a cross-connection.

On creativity: how do people get new ideas?

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.

Webster board votes to euthanize dog

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.

Wataniya and Huawei deploy industry's first nodal IP microwave network in Kuwait

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 day in the life of environmental health: cross-connections in colon hydrotherapy

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.

Nasty problem of sewage in river is solved

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.