Materials for covered conductors –45kV Contentskosic.si/wp-content/uploads/pdf-catalogs/obesalna-elementi-za-sistem-polizoliranih...GENERAL Covered medium voltage lines (CCC) are

Materials for covered conductors –45 kV

14/1MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]

Contents

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

TENSION FITTINGS

Double wedge tension clamps . . . . . . . . . . . . . . . . . . . . . . 4

Bolted type tension clamps . . . . . . . . . . . . . . . . . . . . . . . . 5

Compression dead end clamps . . . . . . . . . . . . . . . . . . . . . 5

SUSPENSION FITTINGS

Oscillating top clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Side ties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Suspension clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

ACCSESSORIES

Piercing connectors, standard type . . . . . . . . . . . . . . . . . . 7

Parallel groove clamps . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Piercing connectors with arcing horn . . . . . . . . . . . . . . . . 8

Counter arcing horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Earthing devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9


MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]/2 1

GENERAL Covered medium voltage lines (CCC) are a new alternative to bare overhead lines.These lines have many advantages compared to the bare ones.The system comprises of three separate covered conductors but is not designa-ted to be a fully insulated system.The conductor material is usually aluminium but also ACSR-conductors areused.

The advantages compared to bare lines are:

Spacing • Distance between phases can be kept shorter because of the insula-tion.

Way leave • The way leave through wooden areas can be reduced and branchesneed not be removed immediately.

Line safety • The line safety is much higher as no short circuits occur due to fallingbranches or even trees. Immediate action is thus not necessary. Clashing ofphases caused by wind or ice shedding is also not dangerous.

Systems • It is possible to erect more than one system additionally on existing poles.

Icing • Icing on covered lines is less.Costs • Costs are a little higher but are more than compensated by very low servi-

ce costs.Loads • Due to lighter crossarms which are much shorter the loads on the poles are

lower.

Standards The connecting bolts acc. DIN 48073/5.6 or 8.8.Split pins are made of stainless steel or tinned copper.Clevis eye connections acc. DIN 48074 resp. IEC 471.

Hot dip Galvanising Steel hardware is hot dip galvanised in Mosdorfer’s own plant.Galvanising can be done in accordance to national and international stan-dards.

abbreviation for bolts:S = screw boltN = rivet bolt

For a more detailed description for suspension and tension clamps see catalo-gue parts 4 and 5.



Suspension points for angle poles fixing of conductors by side ties

Suspension points with oscillating top clampsand including arcing horns.

Tension set with arcing device

Suspension set witharcing device

Examples

Direction of current

Material: Body and wedges: aluminium-alloyTrunnion: steel, hot dip galvanisedBolts and straps: steel, hot dip galvanised

L.-Nr. Weightkg


Weightkg


Weightkg

L.-Nr.



L.-Nr.Short circuit

currentkA

4440.504440.50/44440.514440.51/34440.52/14440.52/24440.53/14440.53/2

TENSION FITTINGS

Double wedge tension clampsfor aluminium-, al-alloy-, ACSR-, AACSR- and alumoweld conductorsTo avoid damaging the conductor which might lead to notching effects thewedges are designed without serrated grooves.This has the advantage of permitting transfer of the clamp to another place if itis necessary.

Double wedge tension clamps with jumper connectionsfor watertight cables.Clamps to be mounted over the insulation.

Other dimensions on request.

4440.53/34440.53/3A4440.54/3N4440.53/3N-A

Conductor Ø

13,1–16,117,3–18,813,1–16,117,3–18,8

l

230230230230

b Bolt

20202020

N19N19N16N16

2,502,502,502,50

Dimensions in mm

Double wedge tension clamps with jumper connections

Dimensions in mm

Double wedge tension clamps without jumper connections

Conductor Ø7,5– 9,67,5–10,0

10,5–12,510,5–12,513,6–16,113,6–16,113,6–16,113,6–16,1

l150150150150230230230230

b Bolt14/20

2014/20

2014142020

N13S 19N13S 19N13S 13N19S 19

1,061,121,041,112,252,252,352,35

1010101010102222

Short circuitcurrent

kA

4440.52/34440.52/44440.53/34440.53/4

Dimensions in mm

Conductor Ø

13,6–16,113,6–16,113,6–16,113,6–16,1

l

230230230230

b Bolt

14142020

N13S 13N19S 19

2,402,402,502,50

10102222

Material: Clamp and cable lug: aluminium-alloyOther parts: steel, hot dip galvanised

L.-Nr. Weightkg

Material: Clamp: aluminium-alloyOther parts: steel, hot dip galvanised

L.-Nr. Weightkg



604435.01/1

Bolted type tension clampsto be mounted after removal of the insulation of aluminium and ACSR conduc-tors.This type was developed for covered conductors. The keeper is suitable for tworanges (25-62 and 63-132 mm2).

a

140 0,90

Cross sectionmm2

25–132

b

85

c Bolt

20 N16

Dimensions in mm TorqueNm

On ordering please state type of conductor.

4455.75/14455.76/14455.77/1

Compression dead end clamps watertight Available for all cross sections.This watertight variation is very suitable in polluted areas to prevent corrosionof the cable.

Cross sectionmm2

5095

150

a

265315375

b

105105105

Screws

1 x M 121 x M 121 x M 12

1,101,301,50

Dimensions in mm

Other types and dimensions on request.

Earthing connection

Material: Aluminium-alloy

L.-Nr. Weightkg

Material: Clamp: cast-aluminiumBolts: steel, hot dip galvanised

L.-Nr. Weightkg



Dimensions in mm

2300.602300.622300.632300.642300.65

2300.702300.722300.732300.742300.75

2300.802300.81

2300.902300.91

For conductors with diameters less than 9 mm aluminium-binding tape band shall be used.Types for other insulators on request. A metal free type is available on request.

Type

PK 10/IIPK 20/IIPK 25/IIPK 30/IIPK 35/II

PK 10/IIIPK 20/IIIPK 25/IIIPK 30/IIIPK 35/III

PKV 20/IIPKV 30/II

PKV 20/IIIPKV 30/III

forInsulators

VHD 10VHD 20VHD 25VHD 30VHD 35

VHD 10VHD 20VHD 25VHD 30VHD 35

VKS 20/25VKS 30/35

VKS 20/25VKS 30/35

Cond. Ø h

9-169-169-169-16 9-16

15-2015-2015-2015-2015-20

9-169-16

15-2015-20

0,490,530,560,560,60

0,590,630,660,660,70

0,470,51

0,470,50

57,562,567,567,570,5

60,065,070,070,073,0

62,567,5

65,070,0

Oscillating top clampsfor aluminium-, al-alloy-, ACSR-, AACSR- and alumoweld conductorsThese clamps are to be mounted onto bare cables (removal of insulation).Mounting directly onto the insulation is possible but depending upon the insu-lator type, special precautions are to be taken against corona.

Other types on request.

Side tiesAt angle towers with small angles one should use side tiesfor fixing.These side ties can be manufactured from plastic or plasti-fied Al-alloy.Assembling directly onto the insulation.

4772.6514772.661

Type

plastifiedplastified

Conductor rangemm

14,10–15,0014,10–15,10

Insulator

VHD 20VHD 25

0,150,15

SUSPENSION FITTINGS

Weightkg

Material: Case halves: polyamide, glasfiber reinforcedPenetrating teeth: copper tinnedPressure plates: steel, hot dip galvanisedBolts: steel, hot dip galvanised

L.-Nr.

L.-Nr. Weightkg

Material: Body and keeper: cast aluminiumOther parts: steel, hot dip galvanised


14/7 1MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]

Suspension clampsSuspension clamps are used on angle towers with larger angles. They are avai-lable in various types and can be adapted to suit requirements.

9,0–16,5

Cond. Ø

1,754335.04

Short cir-cuit cur-rent kA

10

Breakingstrength

kN

80 210

a

115

b

14

c

S 13

Connectingbolt

Dimensions in mm

5212/.5220/.5223/.

Piercing connectors standard typeThe standard type of Mosdorfer-piercing connector consists of two glassfibrereinforced polyamide case halves with penetrating teeth.The contact is achieved by tightening the bolts. Grease is used for protectingthe contact points against ingress of moisture.The standard type is sufficient for all normal purposes. In polluted areas it ispreferable to use the watertight version.

Types:L.-Nr. .../1 1 groove open

.../3 3 grooves open

.../4 4 grooves open

..././K with shear head nut Al – 20 Nm

25 – 12095 – 24095 – 240

25 –12016 – 9550 –150

2 x M 82 x M102 x M 8

0,270,500,60

Main cablecross section mm2

Tap off cablecross section mm2

numberof bolts

ACCSESSORIES

Other types see cat.-part 4.

Watertight piercing connectors and associated items see Cat.-part. 19

Material: Clamp: aluminium-alloy, forgedOther parts: steel, hot dip galvanised

L.-Nr. Weightkg

Material: Clamp: extruded aluminium-alloyBolts: steel 8.8, hot dip galvanised

L.-Nr. Weightkg



3500.013500.01/13520.01

Crosssection mm2

50-15050-150

a

150150150

b

145145145

5050

c

Dimensions in mm

d

4040

Torque Nm

4646

0,40**0,20**0,20**

Piercing connectors with arcing-hornpatented

Fixing of arcing horns is done by means of a piercing connector which is for-ged out of a corrosion resistant al-alloy.The contact is provided through the teeth which penetrate the insulation.The second groove can carry an al-wire if necessary for connection to the fixing clamps.The arcing horn and tap off wire is connected separately by means of a sepa-rate nut.

The advantages are:• Changing of the arcing horn after a high short circuit current is possible

without disassembling the clamp.• The short circuit current is 10 kA 1 s.• The function is secured in all possible cases which has been proved through

many tests.• Simple assembly through guiding the two halves into parallel movement.

Upon request an insulating cover is available.

Parallel groove clampsThe PG-Clamps are to be fixed onto the bare conductor.

4502.104502.114502.124502.134502.14

15.1–18.18.2–11.7

11.8–15.815.8–19.219.3–24.3

Conductor Ø LengthBolts

64809597

112

3 x M 83 x M103 x M123 x M123 x M14

0.120.240.440.510.90

Clamps with reduction tubes on request.These parallel groove clamps are also available with one or two screws. The length is then reduced to 1/3 or 2/3.Parallel groove clamps for fibre optic cables see catalogue part 18.

Dimensions in mm

**clamp without arcing-horn.**arcing horn only.

Material: Steel, hot dip galvanised

L.-Nr. WeightkgHoleL

L.-Nr. Weightkg

Material: plastic


L.-Nr. Weightkg


L.-Nr. Weightkg


14/9 1MOSDORFER Ges. m. b. H. A-8160 WEIZTel. 0 31 72 / 25 0 50, Fax 0 31 72 / 25 05 29, e-mail: [email protected]

Lower counter horn

3550.103550.10/1

Cross sectionmm2 a b d

50–15050–150

170170

100100

1414

Torque Nm

46 0,70*0,30*

IN SERVICE EARTHING CLAMPS

Earthing device single fixing

Earthing device double fixing

String hardware and

arcing device for tensions strings see cat.-parts 3 and 7

BIRD DIVERTERS

Bird protection cap

3520.053520.05/1

Dimensions in mm

470470

2632

Short circuit cur-rentkA

1010

0,900,90

3550.113550.11/1

Cross sectionmm2 a b d

50–15050–150

250250

100100

1414

Torque Nm

46 1,00*0,60*

Dimensions in mm

Dimensions in mm

3540.01

used for

Piercing connector 3500.01/1 0,04

Other bird protection devices on request.

*Earthing device only.

*Earthing device only.

Documents

Materials for covered conductors –45kV Contentskosic.si/wp-content/uploads/pdf-catalogs/obesalna-elementi-za-sistem-polizoliranih...GENERAL Covered medium voltage lines (CCC) are