IEEE 48-1996 pdf download IEEE Standard Test P rocedures and Requirements for Alternating- Current Cable Terminations 2.5 kV Through 765 kV
3.13 outdoor termination: A termination intendedfor use where it is not protected from direct exposure toeither solar rad ation or precipitation. These are Class A, 1B, ar 1C term inations. Class 2 terminations mayal so qualify
3,14 outdoor terination-polluted: A termination intended for use where it is not protected from drectexposure to either solar radhation or precipitation, and is exposed to nonstandard (unusual) serviceconditions such as extreme seacoast salt deposits, solidprecipitates, etc. Often requres extra mairtenancesuch as washing or extra creepage length
3.15 partial discharge (corona) extinction volage: The voltage at which partial discharge (corona) is nolonger detectable on instrumentation adusted to a specifed sensitivity, following the application of aspecified higher voltage
3.l6 pressure-type termnation: A Class 1C temination intended for use on positive pressure cablesysterns.
Single pressure zone termination: A pressure-type term ination intended to operate with one pressure
zone
Multipressure zone termination: A pressure-type termination intended to operate with two or more
pressure zones.
3.17 radio imfluence voltage (RIV): The radio ncise appearing on conductors of electric equipment orcircuits, as measured using a rado-noise m eter as a two-terminal yoltm eter in accardance with specifiedin ethods.
3.18 ro utine tests: Tests made on each high-voltage cable termination or pon a representative numm ber ofdevices, or parts thereof, dring production far puposes af guality control.
3.19 termination insulator: An insulator used to protect each cable conductor passing through the device
and pr ovide com plete external leakage insuation between the cable conductor(9 and ground.
3.20 weathersheds: The extermal part of the termination insulator that protects the core and provides the wetelectrical strength and leakage distance.
3.21 withstand test voltage: The voltage that the device must withstand without fashover, disruptivedischarge, puncture, or other electrical failure when voltage is applied under specifed conditions.
NOTE–For power frequency voltages, the values specifed are RMS yalues and for a specifed time. For lightning orswitc hing impulse voltages, the values specifedare crest values ofa specified wave. For directvoltages, the values spec-ified are average values and for a specified time.
4.Service conditions
4.1 Standard service conditions
Devices conforming to this standard shall be capable of successful operation under the following serviceconditions. Refer to B14] for mnore inform ation
4.1.1 Physical conditions
Temperature8
The tem perature of the medium in drect contact with the term ination shall not be less than130C,nor more than +40 C
For apparatis terminations, the temperature of the mmedum in drect cortact with thetermination (ambient inside enclosure) shal1 not exceed 55 C.The devices designed for thisservice will be connected to the equipment bus which m ay at full load, reach a mmaximurtemperature of 85 C
The altitude shall not exceed 1000 m (3300 f) where atm ospheric air is part of the therm al ordielectric systemn or both
412 System conditions
The nominal power systemn frequency is not less than 48 Hz nor more than 62 Hz.
4.2 Nonstandard service conditions
The following service condtions may require special consideration in design or application of the cableterm inations. and should be called to the attention of the manufacturer.
IEEE 48-1996 pdf download
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