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1 dr lategan road groenkloof

This standard may only be used and printed by approved subscription and freemailing clients of the SABS.

ICS 29.240.20

ISBN 0-626-15175-9

SANS 10198-2:2004Edition 2

SOUTH AFRICAN NATIONAL STANDARD

The selection, handling and installation ofelectric power cables of rating not exceeding 33kV

Part 2: Selection of cable type and methods of

installation

Published by Standards South Africa private bag x191 pretoria 0001

tel: 012 428 7911 fax: 012 344 1568 international code + 27 12www.stansa.co.za

© Standards South Africa

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Table of changes

Change No. Date Scope

Abstract

Deals with factors to be taken into account when an electrical distribution system is being designed. Itcovers criteria to be considered when an electric power cable is being selected, and gives ageneral introduction to the methods available for the laying of power cables.

Keywords

cable types, electric cables, installation, power cables, selection.

Acknowledgement

Standards South Africa wishes to acknowledge the valuable assistance received from the

Association of Electric Cable Manufacturers of South Africa.

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Foreword

This South African standard was approved by National Committee StanSA TC 66, Electric cables , inaccordance with procedures of Standards South Africa, in compliance with annex 3 of the

WTO/TBT agreement.

This edition cancels and replaces the first edition (SABS 0198-2:1988).

SANS 10198 consists of the following parts under the general title The selection, handling and

installation of electric power cables of rating not exceeding 33 kV:

Part 1: Definitions and statutory requirements .

Part 2: Selection of cable type and methods of installation.

Part 3: Earthing systems - General provisions.

Part 4: Current ratings.

Part 5: Determination of thermal and electrical resistivity of soil.

Part 6: Transportation and storage.

Part 7: Safety precautions.

Part 8: Cable laying and installation.

Part 9: Jointing and termination of extruded solid dielectric-insulated cables up to 3,3 kV.

Part 10: Jointing and termination of paper-insulated cables.

Part 11: Jointing and termination of screened polymeric-insulated cables.

Part 12: Installation of earthing system.

Part 13: Testing, commissioning and fault location.

Part 14: Installation of aerial bundled conductor (ABC) cables.

NOTE The first five parts deal with factors to be taken into account when an electrical distribution system is

being designed. The last nine parts deal with the practical aspects of handling and installing cables.

Annex A is for information only.

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Contents

Page

Abstract

Keywords

Acknowledgement

Foreword ... ....................................................................................................................................... 1

1 Scope . .. ....................................................................................................................................... 3

2 Normative reference ... ................................................................................................................ 3

3 Definitions ... ................................................................................................................................ 3

4 Selection of cable ... ...................................................................................................................... 3

4.1 General ... ............................................................................................................................. 34.2 Sustained current rating ... .................................................................................................. 44.3 Allowable voltage drop ... .................................................................................................... 44.4 Short-circuit capacity ... ........................................................................................................ 44.5 Mechanical and environmental protection ... ....................................................................... 74.6 Interference with telecommunication cables ... .................................................................... 8

5 Method of installation ... ............................................................................................................... 8

5.1 General provisions ... .......................................................................................................... 85.2 Outdoor installations ... ........................................................................................................ 95.3 Indoor installations ............................................................................................................ 10

5.4 Installation in covered cableways and service tunnels ... .................................................. 105.5 Installation in vertical or inclined shafts ... .......................................................................... 10

6 Examples ... ............................................................................................................................... 11

Annex A (informative) Induction effects of earth faults ... ............................................................. 15

Bibliography ... .............................................................................................................................. 25

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The selection, handling and installation of electric power cables ofrating not exceeding 33 kV

Part 2:Selection of cable type and methods of installation

1 Scope

This part of SANS 10198 covers criteria to be considered when an electric power cable is beingselected, and gives a general introduction to the methods available for the laying of power cables. Italso covers cables that comply with the requirements of SANS 97, SANS 1507-1 to SANS 1507-6,SANS 1576, SANS 1339, SANS 1418-1 and SANS 1418-2.

The induction effects of earth faults in power cables running parallel to telecommunication circuits are

given in annex A.

2 Normative references

The following standards contain provisions which, through reference in this text, constituteprovisions of this part of SANS 10198. All standards are subject to revision and, since any reference toa standard is deemed to be a reference to the latest edition of that standard, parties toagreements based on this part of SANS 10198 are encouraged to take steps to ensure the use of the

most recent editions of the standards indicated below. Information on currently valid national andinternational standards can be obtained from Standards South Africa.

SANS 10142-1, The wiring of premises - Part 1: Low voltage installations.

SANS 10198-1, The selection, handling and installation of electric power cables of rating notexceeding 33kV - Part 1: Definitions and statutory requirements.

3 Definitions

For the purposes of this part of SANS 10198 the definitions given in SANS 10198-1 apply.

4 Selection of cable

4.1 General

An electric power cable has to perform two basic functions: it has to carry a specified current and ithas to withstand the voltage and fault conditions of the system into which it is connected. These andother criteria to be considered when a cable is being chosen are detailed in 4.2 to 4.6.

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NOTE 1 600/1000 V multicore PVC SWA PVC.NOTE 2 Maximum conductor temperature 70 °C.NOTE 3 Maximum voltage drop 2,5 % at 400 V.NOTE 4 Installation in air at 30 °C.

Figure 1 — Cable current rating limited by voltage drop (copper conductors)

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NOTE 1 600/1000 V multicore PVC SWA PVC.NOTE 2 Maximum conductor temperature 70 °C.NOTE 3 Maximum voltage drop 2,5 % at 400 V.NOTE 4 Installation in air at 30 °C.

Figure 2 — Cable current rating limited by voltage drop (aluminium conductors)

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4.4.2 Example: consider a 2 MVA 11 kV-380 V transformer which is to be supplied by apaperinsulated cable from a circuit-breaker connected to a system of 500 MVA fault level andhaving a clearance time of 0,5 s. The transformer has a normal full load current of 105 A at 11

kV, and reference to the standard rating of SANS 10198-4 shows that under standard conditions thiswould be adequately catered for by 35 mm2 paper-insulated cable of belted construction. However,the 500 MVA fault level demands a short-circuit rating and graphs of SANS 10198-4 show thata 150 mm2 paper-insulated cable would have to be used.

4.5 Mechanical and environmental protection

4.5.1 Cable sheath

4.5.1.1 Extruded solid dielectric-insulated low voltage cables

Extruded solid dielectric-insulated low voltage cables have an extruded sheath which acts as abedding for armour when so required.

4.5.1.2 Paper-insulated cables

Paper-insulated cables need an impervious metal sheath to prevent the ingress of moisture. Thismetal is normally either lead, lead alloy or aluminium. Pure lead is sensitive to intercrystallinefatigue fracture caused by vibration and, under certain conditions, by the effects of thermal cycling.Consequently, if a lead-sheathed cable is to be subjected to moderate vibration, for example near aroad, a railway or heavy machinery, or is to be transported over long distance prior to installation,then a lead alloy E sheath should be specified. Where severe vibration is expected, specify a lead alloyB sheath with single-wire armour. Where movement due to load cycling can occur and a leadsheathedcable is required, give consideration to specifying alloy E or alloy B.

4.5.1.3 Cross-linked polyethylene (XLPE) insulated cables

XLPE-insulated cables have a foil core screen over which is an extruded sheath that acts as abedding for armour when so required.

4.5.2 Armour

4.5.2.1 Single-core cables

When armouring is required on a single-core cable, ensure that the armouring is non-magnetic. Asingle layer of aluminium wire is normally used.

4.5.2.2 Multicore cables

One or two layers of galvanized steel wire are normally used as mechanical protection for multicorecables, especially in mine shafts.

A double layer of steel tape is sometimes used as mechanical protection. Although steel tapeprovides some protection against penetration by hand excavating tools, it has insufficientlongitudinal strength to withstand subsidence of the ground or excessive pulling during installation.

NOTE The conductivity of the earth return path provided by armour wires and lead sheathing, if present, canbe increased by replacing a number of steel wires with tinned copper wires. Conventionally, sufficient copper isused to bring the conductance of the earth path to a value of at least half that of the largest conductor in thecable.

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4.5.3 Outer protection

The outer protection provided for most types of cable is an extruded PVC sheath. Polyethylene shallbe used when the cable is to be laid by direct burial where water is present, but do not use it

indoors or in ducts where fire hazards may arise. Consider the use of flame-retardantnonhalogenated compounds when cables in air are subject to abnormal fire hazards, such aswhen groups of cables are to be run in long vertical cableways.

NOTE 1 All plastics are affected by ultraviolet (UV) radiation. The effect of UV radiation can be minimized by theuse of carbon-black loading in the compound.

NOTE 2 PVC can become work-hardened. It should therefore be ensured that PVC-sheathed cables in anaerial installation are supported on a catenary wire.

NOTE 3 Excessive clamping pressure should be avoided when PVC-sheathed cables are cleated.

NOTE4 PVC is adversely affected by oils and petrol and is attacked by a number of chemicals, particularly thelong-chain fatty acids (e.g. those produced by the decomposition of meat and found in abattoirs).

4.6 Interference with telecommunication cablesWhen an earth fault occurs in a power cable that runs parallel to a telecommunication cable forsome distance, an induced voltage (which might be of sufficient magnitude to endanger human life oreven cause damage to telecommunication equipment or to the telecommunication cable) willappear across the terminals of the telecommunication cable. The induced voltage will depend onwhether telephone transformers or voltage diverters are installed and on the time taken for thepower system protection to clear the fault. In the case of Telkom telecommunication cables, themaximum allowable induced voltages are specified by Telkom.

A method of calculating the magnitude of an induced voltage is given in annex A.

Induced voltages can be reduced by increasing the separation, and by reducing or eliminating anyparallelism between the power circuit and the telecommunication circuit. When details of aproposed power cable installation are submitted to Telkom (see SANS 10198-1), include the

following information:

a) a map or plan showing all power cable routes, except those within buildings;

NOTE Each cable route should be numbered for reference purposes.

b) a full description of each cable, e.g. 6,35/11 kV three-core 95 mm2 copper conductor, paper-insulated, screened, lead sheathed, single-wire-armoured and served;

c) for each cable, the maximum earth fault current that could occur and the total fault clearance

time (i.e. the relay operating time plus the circuit-breaker clearance time); and

d) for each cable, details of earthing arrangements at the supply end and at the load end of thecable.

5 Method of installation

5.1 General provisions

5.1.1 Install cables in such a way as to

a) minimize the likelihood of damage and consequent failure of the distribution system,

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b) ensure as far as possible the safety of personnel working in the area in which the cables are

installed, and

c) keep the overall cost of the installation to a minimum.

5.1.2 Where power cables are laid parallel to or across telecommunication cables, comply with therequirements of Telkom as stated in letters of approval and detailed on marked-up approval plans.Where alternative methods or installation practices are proposed, obtain approval for each method orpractice from Telkom before work is begun.

5.1.3 When a cable heats up and cools down due to cyclic changes in load, it tends to expand andcontract. If the cable is so restrained that this expansion and contraction is prevented (i.e. theinstallation is a fully restrained system), thermo-mechanical forces will occur which, if not contained,might cause considerable damage to the cable especially at joint positions. If expansion andcontraction are allowed to occur, for example by snaking the cable during installation or by installingit in cleats or on suitable hangers and allowing it to sag between cleats and hangers (i.e. theinstallation is an unrestrained system), damage can be avoided. Whenever possible, avoid a partlyrestrained, partly unrestrained system.

5.1.4 When a short-circuit occurs in a distribution system, all cables feeding the fault will, as aresult of the short-circuit currents, be subjected to electromagnetic forces that will tend to separatethe cores. In a three-core or four-core cable these forces shall be contained by sheath and armour.Where three single-core cables are installed in air, the cables will tend to fly apart. Ensure thatthese forces are contained by using trefoil cleats to anchor the cables, and by using restrainingbands or straps, usually of stainless steel, between the anchors. Well-compacted backfill in directburied installations is normally sufficient to contain such forces.

5.2 Outdoor installations

5.2.1 Direct burial

When a cable is to be installed outdoors, bury it directly in the ground wherever possible. Lay the

cable in a trench on a bed of selected sand or sifted soil of known thermal characteristics and cover itwith the same material. Ensure that this backfill material immediately surrounding the cable is wellcompacted to reduce its thermal resistance. If necessary, protect the material with concrete orsuitable cover tiles. As an additional or alternative precaution, a brightly coloured plastic warning tapeshall be laid above the cable at a depth of at least 200 mm below the ground surface. At the ends ofa direct-buried section and on either side of a joint position, the cable should be snaked to minimize theeffects of thermomechanical forces and ground subsidence.

5.2.2 In pipes

Where a cable route crosses a road or railway, the cable shall be laid in a pipe to facilitate itsreplacement at a later date without disturbing the road surface or railway track. Pipes shall be ofany material that will not collapse in service, and should ideally be set in concrete. Ferrous pipescan be used for multicore cables but not for individual single-core a.c. cables.

5.2.3 In air

Where it is impracticable to install a cable by direct burial (because of rocky terrain, likelysubsidence, or the possibility of damage being caused by the later installation of other cables or

services), it shall be installed in air (above ground) provided that

a) there is adequate support for the cable,

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b) the cable is protected from damage that might be caused by road vehicles, mobile cranes,

vandals, etc.,

c) there is free air circulation around the cable, and

d) the cable is shielded from the direct rays of the sun.

Where such provisions are not possible, considerable derating shall have to be applied. Alongside arailway line or a canal where public access is normally not permitted, a cable shall be installed incleats or in J-hangers fixed to suitably spaced posts or to a wall.

Install the cable with enough sag between fixed positions to allow for free cyclic expansion andcontraction. Fix single-core cables in trefoil cleats and strap them at intermediate positions tocontain short-circuit forces. A guide to cleat spacing and strapping is given in SANS 10198-13.

Details of installation procedures for aerial bundled conductor (ABC) cables are given inSANS 10198-14.

5.3 Indoor installations5.3.1 On cable trays

Suitable mechanical protection for cables shall be provided by running groups of cables on purpose

made cable trays or "ladder racks" installed in tiers as necessary.

Supports for the trays shall be free-standing or fixed to walls; alternatively, roof trusses or joistsshall be used as supports. Do not fix such supports or the trays to structural steelwork by means ofdrilling, as this might weaken the structure. Ensure that cable trays or ladder racks are adequatelysupported, a typical spacing for supports being 2 m.

Fix multicore cables neatly to the tray by means of clips or straps. Fix single-core cables in trefoilcleats and strap them at intermediate positions to contain short-circuit forces.

5.3.2 In cleats

Individual cables or groups of cables shall be cleated to walls or to building steelwork.

5.3.3 In conduit or trunking

Install small single-core cables supplying lighting, power points, etc., in conduit or trunking inaccordance with the provisions of SANS 10142-1.

5.4 Installation in covered cableways and service tunnels

5.4.1 Covered cableways

In covered cableways that are too small for free access of personnel, cleat cables to the walls,install them in hangers or lay them on the floor of the cableway. When cables are laid on the floor,snake them to allow for expansion and contraction.

5.4.2 Service tunnels

Service tunnels that are provided in power stations and in large industrial complexes may, because oftheir size, be equipped with cable trays. Install the cables as in 5.3.1. Make provision at regularintervals (e.g. every 50 m) for cables to cross over from one side of the tunnel to the other, andprovide adequate drainage for the tunnel.

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6.3 1,9/3,3 kV cables

Paper-insulated, PVC-insulated and XLPE insulated cables are available at this voltage. Where thechoice is not governed by the cost of the cable, PVC insulated or XLPE-insulated cables are

generally preferred because of ease of termination, but a metal sheathed cable might be preferredwhen installation is to be by direct burial. The fault level at the bars of switchboard 2 is 150 MVA at3,3 kV (26,2 kA).

The 12 MVA (2,10 kA) and 10 MVA (1,750 kA) connections "G" and "H" to the switchboard shouldideally be busbars but where this is impracticable, use single-core cables (two or more in parallelper phase). Paper-insulated or XLPE-insulated cables with their higher current-carrying capacitythan PVC-insulated cables will enable three instead of four cables in parallel to be used for the12 MVA connection and two instead of three cables in parallel for the 10 MVA connection. The faultrating is not a problem for any of these, but consider the fault rating for the outgoing radial feedsfrom the switchboard. Cable "J", for example, which is fed from circuit-breaker 2/1 and is required towithstand 150 MVA for 0,5 s, should have a minimum conductor size of 185 mm 2 copper for PILC or300 mm2 copper for PVC. If the load on cable "J" were 2 MVA maximum (350 A) and a fusedcontactor instead of a circuit-breaker were used so that short-circuit current could be ignored, a

185 mm

2

conductor PVC-insulated cable could be used. The cables ("K", for example) supplyinghigh tension motors are fuse-protected and are selected on a current rating basis only. (Voltagedrop is not a problem in this instance).

6.4 600/1 000 V cables

600/1 000 V cables are used in all the low voltage systems currently in operation in the Republic,the most common being 380 V or 400 V. 500 V or 525 V systems are also found in the mining,paper and steel industries. At any of these voltages, consider and check the voltage drop beforedeciding on cable conductor sizes. Consider also short-circuit current capacity as the fault currentsat these voltages are generally much higher than at high voltage. Consider, for example, the 2 MVAtransformer in figure 3. The short-circuit capacity on the LV side will be 31 MVA (45 kA at 400 V). Asingle multicore cable or three single-core PILC cables could not withstand this current, but as threeor more single-core cables per phase will be required to carry the full load current (2,887 kA) and it

can be assumed that the fault current will divide equally between them, the PILC cables shall beused. Transformers of this size are normally connected by busbars to the circuit-breaker in the mainlow voltage distribution board but, where this is impracticable, single-core PVC or PILC cables shallbe used.

NOTE 1 Where the HV side of the transformer is fuse-protected as in the case of the 1 MVA or 0,5 MVA

transformer in this example, the cables should be rated simply on a full load current basis.

NOTE 2 Voltage drop is unlikely to be a problem in the cables connecting the transformer terminals to themain low voltage switchboard, but conducted heat from connected equipment might influence the choice ofconductor size.

The 1 000 A feed "L" from the main distribution board of the 2 MVA transformer is required towithstand system fault current for the time taken for the fault to be cleared. Most moulded casecircuit-breakers and air circuit-breakers with direct acting trips will clear a full short-circuit in 1 to 3

cycles and will provide close overcurrent protection.

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Figure 3 — Typical industrial installation

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Three single-core 630 mm2 copper conductor PILC unarmoured cables can carry 1 000 A in air butunder earth fault conditions would suffer from sheath overheating in under 40 ms. In such a caseXLPE-insulated cables would be preferred. Other cables of lower rating (such as "M" in figure 3)that are supplied through fuses or MCB's shall be selected on a full load current and voltage drop

basis only.

If the full load current of the 400 V motor in the example is, for example, 22 A and the length ofcable "N" is 90 m then, with reference to figure 1, a 10 mm2 copper conductor cable is required.

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Annex A(informative)

Induction effects of earth faults

A.1 Voltages induced in telecommunication circuits as a result ofearth faults in power cables running along parallel routes

A.1.1 Earth faults in power cables

Consider an earth fault occurring at some distance along a power cable as shown in figure A.1. Forsimplicity, only the faulty phase is represented.

Figure A.1 — Earth fault currents

The fault current will return to the supply neutral point via one or more of the following paths:

a) Current i 1 directly back to the supply neutral via the armour/sheath resistance R A1.

b) Current i 2 to the gland at the load end of the cable via the armour/sheath resistance R A2, theequipment earth R G2E and back to the supply neutral via R NE.

c) Current i 3 directly to earth via the fault-to-earth resistance R FE and back to the supply neutral via

R NE.

The paths taken by these currents are shown in figure A.2.

Figure A.2 — Fault current paths

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Thus, net currents (I -i 1) and i 2 flow along the cable. These will be equal if i 3 is zero and will be in the

normal direction of current flow.

In the worst case, R F is assumed to be zero, then R G2E and R NE are lumped together and called R E, the

resistance of the earth path. (The simplified arrangement is shown in figure A.4.)

Figure A.4 — Simplified fault path resistance circuit

The net current causing interference i 2 = (I -i 1) will be a maximum when the fault occurs at or nearthe load end of the cable. R C 1 will be a maximum with the fault in this position but, as R C 1 will inmost cases be much less than R E, the above still holds.

The circuit can then be further simplified as shown in figure A.5.

Figure A.5 — Further simplified fault path resistance circuit

From figure A.5:

R' = R C +R A ⋅ RE

R + RA E

where

R C is the resistance of the conductor;

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R A is the resistance of the armour;

R E is the resistance of the earth path.

Let

let

Then

R AR C

R E

R C

be α (ratio of armour to conductor resistances), and

be β (ratio of earth to conductor resistances).

R' = R C (1+αβ

)α + β

and

i 1 = β i 2 α

I = i 2 (1 +α

)β

but

I = U o2 2

(X L ) + (R' )

where

U o is the phase to neutral voltage.

Therefore

i 2 =

(1 +

U o

β 2 2 αβ 2) X L + R C (1 + )

α α + β

In the above expression,

U

U o = 3 and X L =

where

U o 2

S

U is the phase to phase voltage;

S is the system fault level, MVA.

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A.1.2 Voltage induced in parallel circuit

If two wires run parallel for a length L m at a distance d m apart, their mutual inductance M is given

by

2 2

L L d d

M = 2 L log

e + 1 + − 1 + + × 10-7

d d 2 L 2 L

The r.m.s. voltage V induced in one wire by an r.m.s. current i flowing in the other is given by

V = 2 π f .M .i

where

f is the supply frequency, Hz .

The voltage induced per ampere per kilometre route length is given for separations d from 0,2 m to 1

000 m in figure A.6.

A.1.3 Induced voltages

The r.m.s. a.c. voltage that a normal healthy person can safely touch decreases with increasingduration of contact and is given in table A.1. (See also IEC 60364-4-41.)

Table A.1 — Recommended maximum voltages for human safety

1 2

Duration of contact Voltage r.m.s.

s a.c

0,03 2800,05 2200,1 150

0,2 1100,5 901,0 755 50

As a conventional oil circuit-breaker has a tripping time of 0,07 s and it will normally be tripped byoperation of an earth fault relay, the total fault clearance time is unlikely to be much less than 0,1 sand may well be 0,3 s or even longer.

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A.1.4 Information required for calculation of induced voltage

The following information is required for the calculation of induced voltage:

Cable length, m ...

Conductor resistance (length L1) at working temperature,Ω ...

Sheath/armour resistance (length L1) at working temperature, Ω ...

Earth path resistance - far end gland to supply neutral, Ω ...

System fault level (MVA) ...

Phase to neutral r.m.s. voltage, V ...

Length of power cable running parallel to telecommunication cable, m ...

Distance between cables, m ...

Reactance of supply, Ω ...

A.1.5 Calculation

Calculate α = R A

L1

R C

R A

R E

S

U

U o = 3

L2

d

X L

R C

where

α is a constant for the cable;

and β =

X L =

where

R E

R C

3 U o 2

S Ω

U o is expressed in kilovolts;

calculate i 2 =

(1 +

where

β

) Xα

2

L

U o

2 αβ 2

+

R (1+

)Cα + β

U o is expressed in volts;

calculate induced voltage V

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V

where

k

L 2= 0,5 × i × × k

2 1 000

is a function of the distance between cables d as given in table A.2.

Table A.2 — Relationship of factor k to distance between cables

1 2

Distance betweencables d k

m

1 0,822 0,74

5 0,63

10 0,5420 0,4550 0,34

100 0,26200 0,19500 0,104

1 000 0,058

Figure A.6(a) — Distance between cables 0,2 m to 10 m

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Figure A.6(b) — Distance between cables 10 m to 1 000 m

Figure A.6 — Induced voltages against distance between cables

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A.1.6 Example

Consider a three core 95 mm2 aluminium conductor paper/lead single-wire-armoured 11 V power

cable that complies with the requirements given in table L of SANS 97 (SABS 97:2001):

System fault level 250 MVA at supply terminals

Earth path resistance 5 Ω

Cable length L1 1 200 m

Length in parallel L2 740 m

Distance between cables d 10 m

1 200R C = 0,365 ×

R A = 0,343 ×

α = 0,941

β = 11,42

1 000

1 2001 000

= 0,438 Ω

= 0,412 Ω

X L =

i 2 =

3 × (6,35) 2

= 0,484 Ω 250

6 350

(1 + 12,14) 0,234 + 0,192= 508,1 A

(1 + 0,869) 2

Induced voltage

V = 0,5 × 508,1 ×740

× 0,54 = 101,5 V1000

NOTE If the above calculation is repeated for values of R E between 2 Ω and 10 Ω, the curve of induced

voltage against R E so obtained is shown in figure A.7.

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Figure A.7 — Induced voltage VS earth path resistance

It appears from this case that an earth path resistance of at least 5 Ω or more is desirable from an"interference with telecommunications" point of view.

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Bibliography

IEC 60364-4-41, Electrical installations of buildings - Part 4: Protection for safety - Chapter 41:Protection against electric shock.

SANS 97 (SABS 97), Electric cables - Impregnated paper-insulated metal-sheathed cables forrated voltages 3,3/3,3 kV to 19/33 kV (excluding pressure assisted cables).

SANS 1507-1 (SABS 1507-1), Electric cables with extruded solid dielectric insulation for fixedinstallations (300/500 V to 1900/3 300 V) - Part 1: General.

SANS 1507-2 (SABS 1507-2), Electric cables with extruded solid dielectric insulation for fixedinstallations (300/500 V to 1900/3 300 V) - Part 2: Wiring cables.

SANS 1507-3 (SABS 1507-3), Electric cables with extruded solid dielectric insulation for fixed

installations (300/500 V to 1900/3 300 V) - Part 3: PVC Distribution cables.

SANS 1507-4 (SABS 1507-4), Electric cables with extruded solid dielectric insulation for fixed

installations (300/500 V to 1900/3 300 V) - Part 4: XLPE Distribution cables.

SANS 1507-5 (SABS 1507-5), Electric cables with extruded solid dielectric insulation for fixedinstallations (300/500 V to 1900/3 300 V) - Part 5: Halogen-free distribution cables.

SANS 1507-6 (SABS 1507-6), Electric cables with extruded solid dielectric insulation for fixedinstallations (300/500 V to 1900/3 300 V) - Part 6: Service cables.

SANS 10198-4 (SABS 0198-4), The selection, handling and installation of electric power cables of

rating not exceeding 33 kV - Part 4: Current ratings.

SANS 10198-8 (SABS 0198-8), The selection, handling and installation of electric power cables ofrating not exceeding 33 kV - Part 8: Cable laying and installation.

SANS 10198-13 (SABS 0198-13), The selection, handling and installation of electric power cables ofrating not exceeding 33 kV - Part 13: Testing, commissioning and fault location.

SANS 10198-14 (SABS 0198-14), The selection, handling and installation of electric power cables ofrating not exceeding 33 kV - Part 14: Installation of aerial bundled conductor (ABC) cables.

© Standards South Africa

SANS 10198-2-2004.pdf

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Transcript of SANS 10198-2-2004.pdf