Unique Owner Standard

9/13/2017

A healthcare system standard states to allow for Light Hazard sprinkler spacing, but require Ordinary Hazard hydraulic calculation and pipe sizing. Has anyone done this before?

Note: This is a Daily Discussion question submitted anonymously to us. Submit Your Question or Discuss This Here.

3 Comments

David

9/13/2017 11:19:19 am

We have done this on occasion to mitigate for other construction / code challenges. By Hydraulically calculating to an OH density you are allowing for more water to get to the fire.

By still allowing the Light Hazard classification you do not run into issues with spacing or other OH provisions needing to be met.

JAMES

9/14/2017 06:23:36 am

It seems as though in calculating to OH it would mostly affect pipe size, correct?

Hydraulically speaking it would be somewhat taxing to have sprinklers spaced up 225 sqft and 50% to 100% more water through (depending upon 0.15 or 0.20 gpm/sqft calculation). I guess, however, using K8.0 sprinklers some of the pressure loss or 'pinch' at the sprinkler could be lessened.

David

9/14/2017 08:14:51 am

Correct you would be affect pipe size by calculating more water to the remote area.

Leave a Reply.

Home - About - Blog - Forum - PE Exam - The Toolkit - MeyerFire University - Login - Store - Contact Us

MeyerFire.com is an online platform built to help fire protection professionals shine. Our goal is to improve fire protection practices worldwide, and we aim to do so by promoting best practices, by creating helpful tools and resources, and by bringing together industry professionals to share their expertise.

MeyerFire, LLC is an International Code Council Preferred Education Provider.

Copyright © 2021 MeyerFire, LLC
The views, opinions, and information found on this site represent solely the author shown and do not represent the opinions of any other party, nor does the presented material assume responsibility for its use. Fire protection and life safety systems constitute a critical component for public health and safety and you should consult with a licensed professional for proper design and code adherence. Some (not all) outbound links on this website, such as Amazon links, are affiliate-based where we receive a small commission for orders placed elsewhere.

Unique Owner Standard

Leave a Reply.

ALL-ACCESS

SUBSCRIBE

COMMUNITY

YOUR POST

PE EXAM

FILTERS

ARCHIVES

PE PREP SERIES