made easier, made saFer - Slingco · slingco cable stockings (also referred to as cable grips, cable socks, chinese fingers and mesh grips), blocks / rollers, rope connectors and

ohl stringingmade easier, made saFer innovAtive instAllAtion

trusted innovationwww.slingco.com

www.slingco.com · [email protected]

serving the power utility industryAs A speciAlist supplier to tHe oHl industry, we HAve developed A rAnge of products specificAlly designed to meet tHe unique demAnds of tHis mArket

slingco manufacture a range of products for installing over Head lines (oHl) including lv, 11kv and 33kv, 132kv, 275kv and 400kv projects within uk transmission and distribution networks for all common conductors e.g. Horse, lynx, upas, Zebra and Araucaria plus earth wires opgw.

slingco cable stockings (also referred to as cable grips, cable socks, chinese fingers and mesh grips), blocks / rollers, rope connectors and swivels are widely used in stringing overhead lines on both new construction and refurbishment projects.

in addition to our oHl products we supply a similar product range for underground, subsea and telecoms cables, umbilicals, pipes, wire, hose and conduits.

our comprehensive range of standard products is available for next day delivery and stocking call-off contracts can also be arranged. in addition, we offer quick and efficient bespoke and customised product sourcing options.

NEW PRODUCT DEVELOPMENT

All potential new products are subject to rigorous pre-evaluation to ensure all performance criteria have been carefully collated and considered, and the needs of the customer met. we offer:■ initial design■ 3d modeling■ finite element Analysis (feA)

prototyping and testing■ rapid prototyping and tooling

and physical testing

serving tHe oHl industry Around tHe world

saFe and dependaBle in the most Challenging Conditions

slingco products Are designed, mAnufActured And tested to eXActing stAndArds

if you’ve a specific requirement you think we could help with, or would just like to make contact for a general discussion, please email [email protected] or call us on +44 [0]1706 855558.

Call us on +44 [0]1706 855558

Key to symBols

132 kv275 kv - 400 kv

275 kV or 400 kV 132 kV 11 kV and 33 kV LV 230/400 V

mh275kv - 400kv 132kv lv to 33kv

l

neXt dAy

delivery & stocking

cAll-off contrActs AvAilABle


CatChBloCKcAtenAry roller system sAfe, efficient, cost-effective

pAtented system guArAntees stringing witHout roAd/rAil possession in tHe event of conductor BreAks

the challenges faced by the oHl industry due to the growing number of infrastructure projects built beneath existing transmission and distribution networks - alongside increasingly stringent oHl regulations - can make maintenance costly, time-consuming and challenging. lightweight, robust and easy to deploy, catchBlock helps overcome these issues, increasing efficiency and reducing costs.

reduCed disruption catchBlock is an innovative overhead line (oHl) catenary roller system. designed to deploy a twin-rope system, it allows the recovery and redeployment of broken

conductors without the need to take possession of road/rail or client/third party property or infrastructure.

reduCed aCCident risKcatchBlock significantly reduces the need for erection and dismantling of scaffolding - cutting down the risk of accidents and harm to site workers.

reduCed stringing Costs the reduced need for scaffolding, ease of deployment, and the ability to recover and redeploy, means fewer man hours and faster, more efficient operation ...all of which combine to deliver substantially reduced costs.

trusted innovation, outstanding support, BespoKe soFtware

in addition to our complete engineering support service, we offer bespoke software for the catchBlock system to replace spreadsheet calculations. intuitive and easy to use, this software needs only limited training in order for site staff to complete regulatory checks.

the catchBlock system has been rigorously trialled and tested. At no point has there been the need to take out possession orders for property or infrastructure, even with a failed conductor.

though off-the-shelf, single rope systems are designed to deal with broken conductors, if a break occurs either in

TWINSUPPORT

DRUMS

CATCHBLOCKSMOTOR

CATCH BLOCK

CAPTIVE ROPE

RECOVERY ROPE

spans, over or adjacent to the obstacle, two tails of broken conductor can be left hanging over the obstacle in the span.

catchBlock combines a support rope and a recovery rope so that, in the event of conductor failure, both the conductor and catchBlock system can be recovered to the towers on both sides of the obstacle by pulling back the support rope and leaving the recovery rope in place.

the catchBlock can then be easily re-deployed on the recovery rope and

tensioned as normal. the initial recovery rope is then disconnected and joined to the two conductor tails in order to pull one tail towards the other and re-connect them.

unlike conventional systems the catchblock retains both deployment ropes at all times, avoiding any slack between the rollers. this means that even during the recovery phase the support rope is captured and distance is maintained between the rollers. Both ropes are controlled at all times and are not allowed to run freely in any of the roller mechanisms.

how the CatChBloCK system worKs

FEATURES & BENEFITS■ removes the need to close down essential infrastructure

for conductor repairs or in the event of an emergency

■ cuts down the need for scaffolding; reduces accident risk

■ lighweight, robust, weatherproof and easy to deploy

■ twin rope system allows for recovery and redeployment

■ flexible - catchBlock isn’t specific to a single tug design

■ High conductor range, including the ability to allow mid-span joints/repair sleeves to pass through safely

■ Blocks can be connected for use on multiple bundle conductor systems

Call us on +44 [0]1706 855558

heavy duty pulling grip

medium duty pulling grip

light duty pulling grip

ConduCtor rope and earth wire stoCKings quick And eAsy to AttAcH And remove

A range of conductor grips that are quick and easy to attach and remove, in sizes from 10mm to 38mm, with mBl up to 18,000kgs and wll 6,000kgs.for all common conductors, e.g. Horse, lynx, upas, Zebra and Araucaria plus earth wires opgw.

the flexible eye connects with slingco line pulling swivels for trouble-free pulling applications. made of galvanised steel.

h

m

l

slingco part no

colour code

range lattice length min Break load wllin mm in mm lb kg lb kg

Zcs7285 green 0.47 - 0.75 12 - 19 32 820 18,739 8,500 6,246 2,833Zcs7348 red 0.63 - 0.94 16 - 24 35 890 21,495 9,750 7,165 3,250Zcs7286 Brown 0.75 - 0.98 19 - 25 42 1075 29,762 13,500 9,921 4,500Zcs7287 light Blue 0.98 - 1.26 25 - 32 38 970 33,069 15,000 11,023 5,000Zcs7288 gold 1.26 - 1.50 32 - 38 43 1082 39,683 18,000 13,228 6,000

slingco part no

colour code


Zcs7229 green 0.31 - 0.51 8 - 13 24 610 4,960 2,250 1,653 750Zcs7230 Brown 0.47 - 0.75 12- 19 24 610 7,452 3,380 2,484 1,127Zcs7231 light Blue 0.75 - 0.98 19- 25 24 610 12,214 5,540 4,071 1,847Zcs7232 gold 0.98 - 1.26 25 - 32 24 610 21,054 9,550 7,018 3,183

slingco part no

colour code


Zcs7233 green 0.40 - 0.51 10 - 13 24 610 2,469 1,120 823 373Zcs7234 Brown 0.51 - 0.75 13 - 19 24 610 3,704 1,680 1,235 560Zcs7235 light Blue 0.75 - 0.98 19 - 25 24 610 4,938 2,240 1,646 747Zcs7236 gold 0.98 - 1.50 25 - 38 24 610 9,877 4,480 3,292 1,493

COLOR CODEDPROTECTIVE SHOULDER SLINGCO RECOMMENDS

SECURING CLAMPS

DOUBLE WEAVEB

C

M

Y

CM

MY

CY

CMY

K

MARKETING MEDIUM MU.pdf 1 19/05/2017 13:39

SINGLE WEAVEDOUBLE WEAVETRIPLE WEAVE


SECURING CLAMPS

A B C

C

M

Y

CM

MY

CY

CMY

K

MARKETING HEAVY MU.pdf 1 19/05/2017 13:38


SECURING CLAMPS

SINGLE WEAVEC

C

M

Y

CM

MY

CY

CMY

K

MARKETING LIGHT MU.pdf 1 19/05/2017 13:37


BloCKs Built to ieee524 And AvAilABle in A rAnge of siZes

these single sheave running blocks are designed predominantly for use on the 132kv network for dnos, enabling smooth handling of both new construction and refurbishment projects.

on the external layer of a standard specification Aluminium conductor steel reinforced (Acsr) cable, the strands are relatively soft and easily marked, especially if the sheave is in poor condition and of the incorrect profile. slingco-designed running blocks - built to ieee524 - incorporate a number of key features to protect the conductor and avoid unnecessary damage.

the specification stated in ieee524 is to observe a minimum sheave diameter equal to 20d hence we recommend sheaves of 12”, 18” and 21” diameters.

in addition to our range of standard diameters, bespoke configurations can be produced via our design engineering department, with fully customised blocks designed from scratch to suit your application.

adJustaBle array roller reduce clipping-in time from ApproXimAtely 2 Hours to 15 minutes

this new device eliminates the need for a lifting system and replaces standard running blocks with a new type of proven roller featuring an adjustment that allows the conductor to be raised and lowered directly into the suspension shoe. consequently, operation times and the need for large amounts of equipment are substantially reduced.

the use of the Array roller has already been proved on the national grid network, delivering substantial efficiencies when removing or replacing suspension fittings on standard suspension arrangements.

use of this technological development on the national grid trial site demonstrated an 80% time saving, hence roll-out across the network could see huge benefits in reducing overall project timescales.

conductor name

nominal aluminium area (mm)

material code

stranding strand diameter (mm)

Actual area(mm2)

conductor diameter (mm)

non- breaking load

Horse 70 Acsr 12/7 2.79 116.2 13.95 61.2keziah 160 AAcsr 30/7 2/79 226.2 19.53 102lynx 175 Acsr 30/7 2.79 226.2 19.53 79.8upas 300 AAAc 37 3.53 362.2 24.71 101.5

■ structural aluminium frame to reduce overall weight■ customised gate opening feature for ease of installation■ symmetrical design ensures balance through the pull■ sheaves are evenly spaced through the block■ independently type tested to ensure compliance with slingco specifications

Call us on +44 [0]1706 855558

ConneCtors connect rope witHout feAr of frAying or dAmAge

line pulling swivels prevent torque reAcHing dAngerous levels

use to connect rope, swivels and other objects. with high strength pins and smooth rollers you can safely connect rope without fear of fraying or damage. use the convenient 90° connectors to link wire and other non-rope items. connectors have high strength hex pins.

slingco part no.

safe working load lb (kg)

A in (mm)

Ø B in (mm)

cin (mm)

d in (mm)

Ø e in (mm)

underground overheadLINE PULLING SWIVEL – STANDARD ENDSZsw2091 2,250 (1,015) 1,350 (610) 3 3/8

(86)7/8

(22)3/8

(10)7/8

(22)5/16 (8)

Zsw2092 3,500 (1,590) 2,100 (955) 4 (99) 1 (25)

7/16 (11)

11/16 (26)

3/8 (10)

Zsw2093 5,000 (2,240) 3,000 (1,345) 4 15/16 (126)

1 1/4 (32)

9/16 (14)

1 1/4 (32)

3/8 (10)

Zsw2094 7,000 (3,170) 4,200 (1,900) 5 3/16 (132)

1 3/8 (35)

9/16 (14)

1 13/32 (36)

1/2 (12.5)

Zsw2096 10,000 (4,530) 6,000 (2,700) 6 3/16 (157)

1 5/8 (41)

45/64 (18)

1 3/4 (45)

13/20 (16.5)

Zsw2097 15,000 (6,730) 9,000 (4,030) 7 5/16 (186)

2 3/32 (53)

25/32 (20)

2 1/8 (54)

23/32 (18)

LINE PULLING SWIVEL – BULL NOSEZsw2649 4,000 (1,815) 2,400 (1,085) 4 3/4

(120.7)1 1/4

(31.8)19/32

(15.1)1 3/16 (30.2)

3/8 (9.5)

Zsw2929 8,000 (3,630) 4,800 (2,175) 5 3/8 (136.5)

1 1/2 (38.1)

5/8 (15.9)

1 3/8 (34.9)

7/16 (11.1)

Zsw6122 10,000 (4,530) 6,000 (2,700) 7 1/32 (178.3)

1 7/8 (47.6)

6 1/16 (154)

5/8 (15.9)

3/4 (19.1)

Zsw6123 16,000 (7,142) 9,600 (4,355) 10 1/8 (257.73)

2 7/16 (62)

8 3/4(222)

1 1/8 (28.5)

1 (25.4)

Zsw2857 30,000 (13,610) 18,000 (8,165) 11 1/8 (282.6)

2 1/2 (63.5)

1 (25.4)

2 3/4 (69.9)

7/8 (22.2)

3:1 factor of safety used, based on the ultimate load for underground use5:1 factor of safety used, based on the ultimate load for overhead use

no. model A (mm)

B (mm)

c (mm)

d (mm)

e (mm)

d (pin dia)(mm)

working load (kn)

weight (kg)

1 slu-1 36 68 18 14 29 10 10 0.22 slu-3 37 76 20 17 31 12 30k 0.233 slu-5 50 96 23 19 42 18 50 0.64 slu-8 56 110 28 22 50 20 80 0.85 slu-10 59 126 30 26 54 22 100 1.26 slu-13 61 134 32 27 56 24 130 1.37 slu-25 80 178 44 35 72 30 250 3.0

swivels designed for use in stringing high tension wires for electrical transmission and distribution. swivels are important in pulling when the lines develop torsion during the installation. this torsion must be released. use of a swivel will release torque and prevent it from reaching dangerous levels, which can cause damage to the cable or grip.

slingco also offers a ‘bull nose’ style swivel designed for underground and overhead applications.

All swivels are stringently quality tested and inspected to ensure optimum performance and reliability.

STANDARD ENDS

STANDARD ENDS

BULL NOSE

BULL NOSEA

C

B E

D

C

M

Y

CM

MY

CY

CMY

K

Frank Rope Connector Dwg.pdf 1 23/05/2017 16:54

transmission & distriBution

oHl products are just some of slingco’s range developed for the transmission & distribution market. slingco cable installation and support products are widely specified throughout the power utility industry, in such diverse applications as overhead line stringing, trench cable laying, fibre optic cable pulling and conduit riser supports.

slingco america, inc.130 celtic Blvd, tyrone, georgia, 30290, usAtoll free: 888 685 9478 fax: 888 728 [email protected]

www.slingco.com

slingco limitedstation road, facit, whitworth, lancashire, ol12 8lJ, englandtel: +44 [0]1706 855558fax: +44 [0]1706 [email protected]

+44 [0]1706 855558for Any enquiries cAll todAy on

made easier, made saFer - Slingco · slingco cable stockings (also referred to as cable grips, cable socks, chinese fingers and mesh grips), blocks / rollers, rope connectors and

Documents