View source for ST-HL-AE-2362, Proposed Tech Spec 4.8.1.1.2.a.2 Correcting Min Rpm Speed Requirement for Diesel Generator & Changing Frequency Requirements to Be Consistent W/Min Rpm Requirement

{{Adams
| number = ML20235E286
| issue date = 09/23/1987
| title = Proposed Tech Spec 4.8.1.1.2.a.2 Correcting Min Rpm Speed Requirement for Diesel Generator & Changing Frequency Requirements to Be Consistent W/Min Rpm Requirement
| author name = 
| author affiliation = HOUSTON LIGHTING &amp; POWER CO.
| addressee name = 
| addressee affiliation = 
| docket = 05000498
| license number = 
| contact person = 
| document report number = ST-HL-AE-2362, NUDOCS 8709280047
| package number = ML20235E235
| document type = TECHNICAL SPECIFICATIONS, TECHNICAL SPECIFICATIONS &amp; TEST REPORTS
| page count = 1
}}

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                                                           .7            -
       ',       y ATTACHMENT l'
                                                                        ; ST.HL AE. 2 22 PAGE_/__OF l ELECTRICAL POWER SYSTEMS 1
i SURVEILLANCE REQUIREMENTS                                                                j 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission netw6rk and the Onsite Class 1E Distribution System shall be:
: a. Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and-                    ]
: b. Demonstrated OPERABLE at least once per 18 months during shutdown by     j transferring the unit power supply from the normal circuit to each of       !
the alternate circuits.                                                   ,
                                                                                              ~
4.8.1.1.2 Each standby diesel generator shall be demonstrated OPERABLE:
i
: a. In accordance with the frequency specified in Table 4.8-1 on a            '
l STAGGERED TEST BASIS by:
1)
Verifyingthefuellevelinit@sassociatedfueltank, (ms                                        {
: 2)   Verifying the diesel starts from ambient condition and accele-       1 rates to at kast 600 rpm in less than or equal to 10 seconds.*        i
.                           The generator voltage and frequency shall be 4160 + 416 volts          I I
and 60 + 1.2 Hz within 10 seconds
* after the start signal.
The diesel generator shall be started for this test by using           ,
one of the fnllowing signals-                                          i I
a)    Manual, or b)    Simulatad loss-of-offsite power by itself, or c)    Simulatad loss-of-offsite power in conjunction with a            l Safety Injection test signal, or d)    A Safety Injection test signal by itself.                        '
: 3)  Verifying tha generator is synchronized, loaded to greater than
                    '.      or equal to 5500 kW in less than or equal to 10 minutes *, and operates wit 1 a load greater than or equal to 5500 kW for at least 60 minutes, and                                                 l h                   4)   Verifying the standby diesel generator is aligned to provide standby power to the associated emergency busses.
s So sg      *These diesel generator starts from ambient conditions shall be performed only g        once per 184 days in these surveillance tests and all other engine starts for the purpose of this surveillance testing shall be preceded by an engine prelube period and/or other warmup procedures such 4:s gradual loading (>150 sec) recom-
{
a        mended by the manufacturer so that the mechanical. stress and wear on the g        diesel engine is minimized SOUTH TEXAS - UNIT 1                   3/4 8-3}}