Electrical Installation Standards

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MINISTRY OF POWER AND MINERAL RESOURCES OF
THE REPUBLIC OF KAZAKHSTAN

APPROVED
by Prikaz No 189 of the Minister of Power and Mineral Resources of the Republic of Kazakhstan, as of August 26, 2004.)

REGULATIONS ON ELECTRICAL INSTALLATIONS
OF THE REPUBLIC OF KAZAKHSTAN

(PUE)

Astana, 2003

TABLE OF CONTENTS

SECTION 1: GENERAL REGULATIONS10

CHAPTER 1.1: GENERAL10

SCOPE, TERMS AND DEFINITIONS10
GENERAL REGULATIONS FOR INSTALLATION OF ELECTRICAL EQUIPMENT11 CONNECTION OF ELECTRICAL INSTALLATIONS TO THE POWER STATIONS13 COMMISSIONING OF ELECTRICAL INSTALLATIONS14

CHAPTER 1.2 POWER SUPPLY AND POWER SYSTEMS14

SCOPE, DEFINITIONS14
GENERAL REQUIREMENTS14
CATEGORIES OF POWER CONSUMING DEVICES AND RELIABILITY OF POWER SUPPLY15 VOLTAGE LEVELS AND CONTROLS, REACTIVE POWER COMPENSATION16

CHAPTER 1.3 SELECTION OF CONDUCTORS: HEATING, CURRENT DENSITY AND CORONA DISCHARGE CONDITIONS16

SCOPE16
SELECTION OF CROSS-SECTION OF CONDUCTORS: HEATING17 MAXUIMUM CONTINUOUS CURRENTS FOR WIRES, CORDS AND CABLES IN RUBBER OR PLASTIC INSULATION18 MAXIMUM CONTINUOUS CURRENTS FOR CABLES IN IMPREGNATED PAPER INSULATION22 MAXIMUM CONTINUOUS CURRENTS FOR BARE WIRES AND BUSES29 SELECTING CROSS-SECTION OF CONDUCTOR PER THE ECONOMIC CURRENT DENSITY33 CONDUCTOR CORONA AND RADIO FREQUENCY TESTS36

CHAPTER 1.4 SELECTION OF ELECTRICAL EQUIPMENT AND CONDUCTORS FOR SHORT CIRCUIT CONDITIONS36

SCOPE36
GENERAL REQUIREMENTS36
IDENTIFICATION OF SHORT-CIRCUIT CURRENTS FOR SELECTION OF EQUIPMENT AND CONDUCTORS38 SELECTION OF CONDUCTORS AND INSULATORS, TESTING SUPPORT STRUCTURES FOR SHORT-CIRCUIT DYNAMIC IMPACT39 SELECTION OF CONDUCTORS FOR SHORT-CIRCUIT HEATING39 SELECTION OF EQUIPMENT FOR SWITCHING CAPACITIES40

CHAPTER 1.5 POWER METERING AND MONITORING40

SCOPE, DEFINITIONS40
GENERAL REQUIREMENTS41
LOCATIONS OF POWER METER41
REQUIIREMENTS TO FISCAL POWER METERS43
POWER METERING WITH INSTRUMENT TRANSFORMERS44
INSTALLATION OF METERS AND WIRING45
PROCESS METERING46

CHAPTER 1.6 MEASURIGNG OF ELECTRICAL VALUES, SCOPE46

SCOPE47
GENERAL47
CURRENT MEASUREMENTS47
VOLTAGE MEASUREMENTS48
INSULATION CONTROL48
POWER MEASUREMENTS48
FREQUENCY MEASUREMENTS49
SYNCHRONISATION MEASUREMENTS49
RECORDING ELECTRICAL VALUES IN EMERGENCY MODES49

CHAPTER 1.7 GROUNDING AND ELECTRICAL SAFETY50

SCOPE, TERMS AND DEFINITIIONS50
GENERAL REQUIREMENTS52
DIRECT TOUCH PROTECTION55
INDIRECT TOUCH PROTECTION56
GROUNDING DEVICES FOR THE ELECTRICAL INSTALLATIONS WITH VOLTAGE GREATER THAN 1 kV IN A NETWORK WITH EFFECTIVELY GROUNDED NEUTRAL60 GROUNDING DEVICES FOR THE ELECTRICAL INSTALLATIONS WITH VOLTAGE HIGHER THAN 1 kV IN A NETWORK WITH INSULATED NEUTRAL62 GROUNDING DEVICES FOR THE ELECTRICAL INSTALLATIONS WITH VOLTAGE UP TO 1 kV IN A NETWORK WITH SOLIDLY GROUNDED NEUTRAL63 GROUNDING DEVICES FOR THE ELECTRICAL INSTALLATIONS WITH VOLTAGE UP TO 1 kV IN A NETWORK WITH INSULATED NEUTRAL64 GROUNDING DEVICES FOR REGIONS WITH HIGH SPECIFIC GROUND RESISTANCE65 GROUNDING RODS65

GROUNDING CONDUCTORS66
MAIN GROUNDING BUSBAR66
NEUTRAL PROTECTIVE CONDUCTORS67
PEN CONDUCTORS70
CONDUCTORS OF POTENTIAL BALANCE SYSTEM70
CONNECTION OF GROUNDING AND PROTECTIVE CONDUCTORS70 PORTABLE ELECTRICAL EQUIPMENT71
MOBILE ELECTRICAL INSTALLATIONS72...
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