1999 MAY - Laserfiche WebLink

20.24.120 (1) Piping. [iii] Failure of emergency power. [i] Piping for Class I mate- rials shall be designed and fab- [iv] Seismic activity, upon ricated from materials compati- a seismic event within 5 sec- ble with the material to be con- onds of horizontal semisoidal tained. Piping shall be of oscillation having a peak accel- strength and durability sufficient eration of .15g (=1.47m/sec2) to withstand the pressure, struc- and a period of .4 seconds. tural and seismic stress and exposure to which it may be [v] Failure of primary subjected, as required by the containment. Uniform Building Code or the Pleasanton Municipal Code. [vi] Activation of manual fire alarm. [ii] Secondary containment shall be provided for piping for [vii] Activation of an auto- Class Imaterials. The secondary matic fire suppression system. containment shall be capable of directing a sudden release into (3) Emergency Control Station. an approved discharge treatment Signals from emergency equip- system, and shall be monitored ment shall be transmitted to an continually with a continuous emergency control station which is gas monitoring system approved continually staffed by trained by the Fire Chief. Secondary personnel, and transmitted to an containment, includes, but is not approved central station. limited to, double walled pip- ing. (c) Class II Controls. Responsible persons shall cause materials which (2) Automatic Shut-Off. An are classified as Class II materials to automatic shut-off valve which is be provided with the controls speci- of a "fail safe to close" design fied in this subsection (c) and in shall be provided. Each of the subsections (d), (e) and (f) of this following shall activate automatic section. shut-off: (1) Connections. [i] Gas detection. [i] Piping and tubing shall [ii] Manually, from remote be installed in accordance with locations. appropriate nationally recog- 710_23 (Pleasanton 5-99)