Fire Protection Manual

Chapter 4, testing procedures

 

 

 

 

 

 

Appendix 10: Public Main Flow Test

 

 

 

 

1.0           Purpose

Jefferson Lab performs flow tests of the public main on site to ensure its continuous operation. Planned testing ensures irregularities are detected and the risk of deficiencies within the system is mitigated through maintenance.

This testing procedure is conducted in accordance with accepted standards, codes, and manufacturers' recommendations.

2.0           Scope

This document describes the flow test procedure used on street hydrants to test the water supply at Jefferson Lab. It includes test preparation and system restoration.

3.0           Planning

Testing requirements include:

·       1 staff members

·       2 hours of time

·       equipment

o   gage cap

o   fire-hydrant wrench

o   pilot gage

o   Fire Hydrant Data Sheet

4.0           Test Preparation

4.1           Establish the fire-detection system impairment using the Chapter 5:  Fire Protection System Impairment Procedure for detailed instructions on work planning, advanced notification, and administrative controls.

4.2           Post the Fire Alarm Systems Testing in Progress sign(s).

5.0           Conduct the Test

5.1           Attach a gage cap to the No. 1 hydrant, which is located along Hogan Drive (on the north side of Jefferson Lab).

5.2           Open the No. 1 hydrant and record its static pressure (in both psi and kPa).

5.3           Move to the No. 2 hydrant, which is also located along Hogan Drive (west of the No. 1 hydrant).

5.4           Remove the caps from the No. 2 hydrant.

5.5           Measure the diameter of the outlets on the No. 2 hydrant, which are square and sharp.

5.6           Replace one cap on the No. 2 hydrant.

5.7           Open the No. 2 hydrant and record its Pitot reading (in both psi and kPa).

5.8           Return to the No. 1 hydrant and record the residual pressure (in both psi and kPa).

5.9           Shut off the water flow at the water-supply connection near the No. 1 hydrant.

5.10        Shut down the No. 2 hydrant slowly and carefully.

5.11        Replace all caps to the No. 2 hydrant.

5.12        Return to the No. 1 hydrant and record the static pressure (in both psi and kPa). The pressure should be equal to what was measured at the start of the test.

5.13        Shut down the No. 1 hydrant.

5.14        Remove the gage cap and replace it with the regular cap.

5.15        Remove posted notification signs and notify the FPE that the flow test is complete.

6               Documentation

Data recorded during this annual test is filed with the Fire Marshal.

7               Revision History

rev

summary

date

1.0

triennial review

-  updated

-  header and footer per discussion with T. Minga, 05.05.2022;

-  7.0 per footer dates, as well as format of 7.0;

-  made general edits and format updates (e.g., bullets, spacing, etc.)

-  corrected acronyms and abbreviations (e.g., SOTR to TR); updated Fire Protection Engineer to Fire Marshal

-  replaced previous red-boxed links with more up-to-date red-outlined box links (see below)

05.19.2022

0.2

periodic review, no changes

06.02.2019

0.1

periodic review; removed reference to obsolete chapter (6730, Water Quality Management)

06.02.2016

0.0

initial release

06.15.2011

 

 

 

 

 

ISSUING AUTHORITY

AUTHOR

APPROVAL DATE

NEXT REVIEW DATE

rev

 

 

Fire Protection Department

Tim Minga

05.19.2022

05.19.2025

1.0

 

This document is controlled as an online file.  It may be printed but the print copy is not a controlled document.

It is the user’s responsibility to ensure that the document is the same revision as the current online file.  This copy was printed on 5/20/2022.