YH10W-15 LIGHTING ARRESTER 10kAINSTALLATION
INSTRUCTION1. GENERAL Metal oxide surge
arrester (MOA) is recognized as the upto-date overvoltage protector
which ,due to the inherent superior nonlinear V-A characteristics
and steep-wave response of metal oxide varistors ,can suppress
overvoltages to a relative low level ,thus providing a reliable
protection for insulation of electrical apparatus. The basic
technical parameters are complied with the technical specification
of Chinese Standard GB11032-2000 which is exactly equivalent to
IEC60099-4 2. THCHNICAL DATA ZINC OXIDE
PROTECTIVE CHARACTERISTICS (10kA NORMAL DUTY
POLYMER)S.NoDESCRIPTIONUNITSVALUE1.RATED VOLTAGEKV15 KV2.RATED
FREQUENCYHz50 Hz3.MAXIMUM 1.2 / 50 MICROSECONDLIGHTNING IMPULSE
VOLTAGEKV1254.MAXIMUM RESIDUAL VOLTAGE FOR 5 KA AND 10 KA WITH 8 /
20 MICROSECOND LIGHTNING IMPULSE CURRENT WAVEKV405.HIGH CURRENT
SHORT DURATION WITHSTAND VALUE WITH 4 / 10 MICROSECOND CURRENT
(PEAK AMPS)KA1006.LOW CURRENT, LONG DURATION WITHSTAND VALUE 2000
MICROSECOND WAVE (CREST AMPS)A250 7.IMPULSE WITHSTAND VOLTAGE
OF ARRESTER INSULATION EXTERNAL ASSEMBLY, KV, CRESTKV95 -
125 8.POWER FREQUENCY ONE MINUTE WITHSTAND VOLTAGES, KV
RMS-
DRY-
WET KVKV 3836
3. APPLICATION CONDITION 3.1 Normal Service
condition Surge arresters which conform to this standard shall be
suitable for normal operation under the following normal service
conditions: Ambient air temperature within the range
of -40 ºC to +40 ºC. Solar radiation :The effects of
maximum solar radiation (1.1kW/m 2)have been taken into account by
preheating the test specimen in the type tests. If there are other
heat sources near the arrester, the application of the arrester
shall be subject to an agreement between the manufacturer and the
purchaser. Altitude is not exceeding 1000m.
Frequency of the A.C power supply is not less than
48Hz but not more than 62HZ. Power frequency voltage
applied continuously between the terminals of the arrester is not
exceeding its continuous operating voltage. Mechanical
conditions ;no strong vibration. Pollution conditions:
no requirement at this time. 3.2 Abnormal Service Conditions Surge
arresters subject to other than normal application or service
conditions may require special consideration in design, manufacture
or application. The use of this standard in case of abnormal
service conditions is subject to agreement between the manufacturer
and the purchaser. 5. INSTALLATION AND PRECAUTION5.1 The surge
arrester is fixed to the supporting structure by fitting-bracket,
and connecting its top terminal to H V wire of electrical apparatus
,which is protected ,with 8-16 mm2 copper wire, connecting its
chassis cover to the terminal of operation counter, connecting the
other terminal of operation counter to the ground wire, or
connecting its chassis cover to the ground directly. 5.2 The surge
arrester should be lain close to the electrical apparatus, which is
protected ,for protective effects. When the transformer is
protected ,the distance between the arrester and on the low voltage
side of a distribution transformer in case any damage to the
insulation caused by forward-backward over voltage 5.3 After bring
the surge arrester into operating ,should be do preventive test
every two years, measuring the leakage current of arrester at DA
1mA.5.4 Please don't break open the surge arresters.5.5 This
product is warranted against defects in workmanship and materials
.If any failure ,resulting from a defect in either workmanship or
material, is occurred under the normal using within one years form
the date of purchase ,we shall replace it in free of
charge.Lightning Arrestors 11kV
No.DETAILUNITSDATA Type 11kV gapless type metal oxide
surgearrester - Distribution class1.Nominal system
voltagekV112.Highest system voltagekV123.Basic Insulation
Level (BIL)kV95 3. Ratings and type of
surge arrester 4.Specification to which surge arrester
complies IEC60099-45.Rated voltage of surge
arresterkV106.Nominal, 8/20 µs, discharge current rating ofsurge
arresterkA107.Maximum continuous operating voltage ofsurge
arresterkV7.38.Gapless or gapped type metal-oxide
surgearrester Gapless9.Material of insulation High
temperature vulcanised siliconrubber10.Rated frequency of surge
arresterHz5011.Design altitude of surge arrester (above sealevel)m1
400m12.Design ambient temperature of surge arresteroC-1
to4013.Specific creepage distance of surge
arrester.mm/kV25 Automatic earth lead
disconnectorsrequirements 14.Automatic earth lead
disconnectors to be fittedYes/NoYES
15.Corrosion protection of metal and alloy parts:galvanising
specification and/or stainless steel grade To SABS 763,
316 Tests 16.Previous type test results/certificate
to beprovided with bidYes/NoYes17.Routine test results/certificate
to be providedon deliveryYes/NoYes18.Drawing showing dimensions of
the arrestor tobe provided with the bidYes/NoYes19.Minimum one
minute wet power frequencywiths
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