PREFORME-CTAL

TAPPING

Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends allow the plastic jacket to remain intact and the conductor continues through the cross- over point of the grip. Connectors are applied to the continued tail, with minimum stripping and exposure to corrosion.

RADIO INTERFERENCE

R.I.V. readings and flashover tests indicate Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends, applied over plastic jacketed conductors, have the same satisfactory electrical performance as dead-ends applied over bare conductors. This statement does not apply to fabric covered conductor. Heavy-Duty Distribution Aluminum-Clad Steel Dead Endss are not recommended for use with high temperature/low sag conductors such as ACSS, ACSS/AW, ACSS/TW ACCR or other types of conductors with loose, and/or annealed outer layer strands.

CONDUCTOR DIAMETER’S APPLICATION

*Note: The products can be improved or modified based on specified requests of different market.

PRODUCT LENGTH

*Note: The products can be improved or modified based on specified requests of different market.

PREFORMED DEAD END’S WEIGHT

*Note: The products can be improved or modified based on specified requests of different market.

** The weight can be different in different market. The manufacturer shall modify based on the market price and requests (without advanced information to all customers).

RATED HOLDING STRENGTH

Holding values of Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends are dependent on a combination of several factors:

- Conductor size, type, stranding

- Thickness of jacket

- Type of jacket

- Specific density of various polyethylene

The multiplicity of combinations makes it impractical to publish a table of "Rated Holding Strengths." As a general guide, the following considerations may be adapted for a certain conductor and construction practice.

When tested under static tension (ram speed of two inches per minute), Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends will hold the full rated breaking strength of all-aluminum and copper conductors, jacketed with neoprene or medium density polyethylene. Static tension results on ACSR approximates the full strength of the aluminum strands plus 10% of the steel core strength.

When Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends are tested under sustained (24 hours) loading, generally lower holding strengths are recorded. This is attributed to the cold-flow characteristics and frictional coefficient of various plastics. The graphs appearing on the back of each catalog page are based on long-term sustained load tests and may be considered representative of the cables described.

This data indicates the highest percentage of Rated Breaking Strength (RBS) is held on medium density polyethylene and vinyl. High density (linear) polyethylene has the lowest percent of RBS.

In addition to the specific densities, the data indicates the percent of RBS will also be reduced by increased jacket thickness.

The test results, expressed in actual pounds of sustained load capacity, make it apparent that values between 500 and 1,000 lbs. should be sufficient to meet field requirements on industrial or commercial service drops and messengered aerial spacer cables. Values exceeding 1,000 lbs. are sufficient for primaries and secondaries in urban distribution.

*Note: The products can be improved or modified based on specified requests of different market.

The design of an aluminum-clad steel wire with a specified conductivity is based on 61 % IACS of aluminum and 9% IACS of steel.

For example, the conductivity of 30% IACS is dealt with as follows:

Designed conductivity: Aluminum (61% IACS x 0.43) + Steel (9% IACS x 0.57) = 31.36% IACS.

INSTALLATION GUILDELINES

Strand Compatibility: Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends should be used only on the size and strand for which they are designed. They must have the same lay as the strand to which they are applied.

When ordering Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends, make sure to specify the strand on which it is to be used and the strand lay.

When using types of strand and/or sizes of strand not mentioned in these catalog pages, consult EMAAR for compatible Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends designs.

During installation and at all times, care should be taken to avoid gouging or damaging the corrosion preventive material of either the Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends or the strand.

Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends must not be used as tools, that is, come-along, pulling-in grips, etc.

Normally tools are not required to install Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends, however a screwdriver may be used to split the legs into subsets. When splitting the legs, do not make more than two subsets per leg.

For hardware and hardware dimensions to be used in conjunction with Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends.

Identification Tape: Shows catalog number, nominal sizes.

Short Leg and Long Leg: Identifies rods belonging to each leg, after application. During application, the short leg should be applied first.

Material Selection: Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends are made from material which is compatible with the strand they are designed to be used with except where noted otherwise.

This product is intended for a single (one-time) use and for the specified application although it may be reapplied twice for re-tensioning within 90 days of initial installation. CAUTION: DO NOT MODIFY OR REUSE THIS PRODUCT AFTER 90 DAYS UNDER ANY CIRCUMSTANCES.

Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends should not be used on hardware which allows the strand to rotate or spin about its axis uncontrolled. Adjustable hardware, such as a turnbuckle, may be used as long as rotational movement of the strand is restricted. Consult EMAAR for additional information concerning adjust- able hardware that can be used with Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends.

Hardware used in conjunction with Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends should have smooth contours, ample groove clearances, acceptable diameters and sufficient strength to minimize abrasion and fatigue of the loop area.

Thimble Recommendations:

(A) Only heavy-duty type wire rope thimbles or solid Thailand type thimbles are recommended for use with Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends.

(B) Heavy-duty type wire rope thimbles can collapse when guy tensions are high. In order to support and protect the loop area of the Heavy-Duty Distribution Aluminum-Clad Steel Dead Ends special precautions are necessary.

(C) In order to prevent collapse of the thimble, either a solid Thailand type thimble, or a large pin inside the thimble, or a smaller pin (such as a shackle pin) plus double extra strong weight pipe or equivalent is necessary. Double extra strong weight pipe, which has increased wall thickness and strength over schedule 160 pipe, does not have a schedule number but information can be obtained from a pipe supplier. Thimble strengths and dimensions can be obtained from a thimble supplier.

EMAAR suggests guy tensions be maintained at a minimum of approximately 10% of the Strand’s Rated Breaking Strength (RBS).

When in doubt about installations, hardware, or applications, contact your EMAAR representative.