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PKP-5

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Portable appliance cable PKP-5 (PKP 5, PKP5)
Desined for measuring electrical parameters and determine the distance to the fault cable and overhead lines of local telephone networks in the process of their construction and operation.
Measuring the DC resistance, Ohm: 0,001 - 122210.

Insulation resistance, G W: up to 10 (up to 50).
The ratio of the bridge arms and the DC method Varley (multiplier n): n = 0,001 / 0,01 / 0,1 / 1/10.


Portable appliance cable PKP-5 6t2.736.005 (hereinafter tool), designed to measure the electrical parameters and determine the distance to the fault (reduced electrical insulation and broken wires) cables and overhead lines of local telephone networks in the process of their construction and operation.

Portable appliance cable PKP-5 allows you to measure:
electrical loop resistance (R SHL);
the difference in electrical resistance - resistance asymmetry (Ra), electrical insulation resistance, including in noisy environments (Riso), capacitance (C), the ratio Rx / Rl, where Rx-impedance to the fault;
Rl - resistance of a good conductor, the ratio of Cl / Cl
where C - the capacity of the wire - the "earth" damaged wires, Cl - capacity-wire "ground" wire serviceable
Portable appliance cable PKP-5 designed for use in stationary and field conditions with climatic influences (ambient temperature, ° C from -30 to +50, relative humidity 90% at +30 ° C (atmospheric pressure, kPa (mm . Hg) - 106.7 ... 60 (460 ... 800)
Technical characteristics
Power supply unit.
Power supply unit PKP-5 is one of the following sources: AC voltages (220 +22 / -33) V, (36 +3.6 / -5.4) V (24 +2.4 / -3 6) (50 ± 2) Hz;
built-in dry battery type A343 TU16-529.271-73 - 12-elements, an external battery voltage of 12 to 18V. Power consumption AC should not be more than 6 VA, maximum strength of an electric current drawn from the DC source voltage 15V, 150mA max.
Time of the instrument PKP-5 from the built-in battery of a freshly made ​​items is not less than 50 hours in a cycle of 4 hours a day. Note: Items with the instrument are not included. The size and weight of the device. Unit dimensions 453x330x238 mm, weight with built-in battery and power cord no more than 12,5 kg. The ranges and limits of permissible error of measurement. Measuring range R SHL 10 -1 -10 5
Limit of acceptable relative error ± (0,2 + R I / Rizm)%, where R I = - the 1st, Rizm - measured resistance in ohms. Limit of acceptable relative error in the operating conditions and applications.
 
Note. Maximum permissible error of PKP-5 in the working conditions of use shall be determined separately for each influence quantity (temperature, humidity).
R a measuring range -1 ... 10 February 10 ohms for R SHL from 10 to 5000 ohms. Limit of acceptable basic error referred to a half of an electrical loop resistance ± (0,2 + R2 / R SHL)%. Limit of acceptable reduced error in the working conditions of use ± (0,5 + R2 / R SHL)%, where R2 = 20 ohms.
Measurement range with no interference Riso May 10 -2 × 10 10 ohm, under impulse noise May 10 -10 10 ohms.
For the scheme, operating in the absence of interference, the limit of acceptable basic error of the length of the working part of the scale ± 2,5%.
Limit of acceptable reduced error PKP-5 in the working conditions of application of the length of the working part of the scale of ± 3,5%.
For the scheme, operating in a frequency transients (1-5) Hz voltage up to 5V, the limit of acceptable basic error of the length of the working part of the scale ± [2,5 + (lmeas / L I) · (Rdop / Rizm)] %. Limit of acceptable reduced error in the working conditions of application of the length of the working part of the scale ± [3,5 + (lmeas / L I) · (Rdop / Rizm) · 100]%
where L I - part length scale mm;
Lmeas - the length of the scale of the plot mark of 10 to a point corresponding to the measured resistance Rizm.
Rdop - the pressure in the measuring circuit Riso;
Capacitance measuring range 3-3000nF. Limit of acceptable basic error PKP-5 of the full scale ± 2,5% at Rins ≥ July 10 ohms;
limit of acceptable reduced error in the working conditions of application of ± 3,5%.
The range of measurement of the ratio Rx / R l 0,01-1 at 10 ≤ R ≤ SHL 5000 ohms. Limit of acceptable basic error
1) K ≥ 400 and measurement methods bridge variable and constant ratio of shoulders:
± 0,5% at R T ≤ 10 6 ohms;
± 1,0% at R T ≤ July 10 ohms;
limit of acceptable reduced error in the working conditions of application of ± 0,75% at R T = 10 6 ohms;
± 1,5% with R = n July 10 ohms;
2) 1,3 ≤ ≤ 3 K & P ≤ R ≤ 10 5 ohms when measured by the compensation method (method of branched currents), the limit of acceptable basic reduced error of ± 0,5%.
Limit of acceptable reduced error PKP-5 in the working conditions of application of ± 0,75%.
When Rx ≤ 10 Ohm to the value of the error must be added δdop = R3/Rx · 100%
And where K - the ratio of resistances damaged and serviceable (conditionally serviceable) wires;
R P - value of the insulation resistance of the transition at the injury site; rg = 0.01 ohms; Rx - the resistance to fault, Om.
The range of measuring the ratio of capacitances Cx / C l 0,01-1 at 10 ≤ Cx ≤ 1000nF.
Limit of acceptable basic error (R P10 August) ± 0,6%. Limit of acceptable reduced error PKP-5 in the working conditions of application of 0.9%.

Photos: PKP-5

PKP-5 device image.
PKP-5 device image.
PKP-5 device image with the opened lid.
PKP-5 device image with the opened lid.
PKP-5 device image with the closed lid.
PKP-5 device image with the closed lid.
PKP-5 view panel of the device.
PKP-5 view panel of the device.
PKP-5 front view.
PKP-5 front view.
PKP-5 side view.
PKP-5 side view.
PKP-5 rear view.
PKP-5 rear view.
PKP-5 overhead view.
PKP-5 overhead view.
PKP-5 bottom view.
PKP-5 bottom view.


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