System Studies' in-house Document Library contains information about a variety of cable pressurization-related topics. Listed below are some documents, in Adobe Portable Document Format (PDF), that we feel may be useful to you. They're provided in PDF format for easy downloading and printing, if desired.

As more information becomes available, it will be listed below. So, check back frequently.

Maintenance / Engineering Topics

3,000 Foot Manifold Spacing Designs

Monitoring Considerations in a 2,000 Foot Manifold Spacing Design  [PDF 225kb]

Cable Pressurization 1,500/3,000 Foot Manifold Spacing Design  [PDF 150kb]

Using 289H to Convert From 6,000 to 3,000 Foot Manifold Spacing   [PDF 10kb]

Cable Pressurization System 3,000 Foot Manifold Spacing Design  [PDF 481kb]

History of Cable Pressure System Designs  [PDF 132kb]

Effects of High Air Pipe Flow Rates on Delivery Pressure  [PDF 97kb]

Leak Locating Topics

A Primer on Cable Pressurization Maintenance  [PDF 562kb]

Leak Locating Formulas  [PDF 2.99mb]

Prioritized Cable Pressurization Leak Locating Strategy  [PDF 95kb]

Correcting Troubled Air Pipe Flows  [PDF 83kb]

Do Addressable Transducers Improve Your Cable Pressurization System?  [PDF 33kb]

Engineering Forms

Manhole Butterfly Map (Blank)  [PDF 21kb]

Pipe Route Schematic  [PDF 400kb]