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Duplex Service Drop Cable
Duplex Service Drop Cable

Duplex Service Drop Cable

Duplex Service Drop Cable is suited for use as drop cable from a pole-mounted transformer to the service entrance of a structure, or as secondary distribution between poles. The cable should be limited to 600V phase to phase and not exceed 90˚C.
Construction
Technical Specifications
Quality Control
Application

Construction

Duplex Service Drop Cable Constrution
Duplex Service Drop Cable

Conductor

Conductors are concentrically stranded, compressed 1350-H19 aluminum.

Specification

The Triplex service drop cable meets or exceeds the following ASTM specifications:
• ANSI/ICEA S-76-474, Neutran-supported power cable assemblies with weather-resistant extruded insulation rated 600V
• B-230 Aluminum Wire, 1350-H19 for Electrical Purposes.
• B-231 Aluminum Conductors, Concentric-Lay-Stranded.
• B-232 Aluminum Conductors, Concentric-Lay-Stranded, Coated Steel Reinforced (ACSR).
• B-399 Concentric-Lay-Stranded 6201-T81 Aluminum Alloy Conductors.
• B-901 Compressed Round Stranded Aluminum Conductors Using Single Input Wire.

Insulation

Insulated with either polyethylene or crosslinked polyethylene (XLPE).

Neutral Messengers

Neutral messengers are concentrically stranded 6201, AAC, or ACSR.

Technical Specifications

Duplex Service Drop Cable
6201 ALLOY Neutral-messenger
AAC Neutral-messenger
ACSR Neutral-messenger
Code Word Phase Conductor Bare Neutral Messenger Weight Per 1000ft (lbs.) Allowable Ampacities+

Size

(AWG)

Stranding

Insul. Thick.

(mils)

Equiv. Dia.

(AWG)++

Size

(kcmil)

Stranding

Rated Strength

(lbs.)

XLPE POLY XLPE POLY
6201 ALLOY NEUTRAL-MESSENGER
Chihuahua 6 1 45 6 30.58 7 1110 65 65 85 70
Vizsla 6 7 45 6 30.58 7 1110 68 68 85 70
Harrier 4 1 45 4 48.69 7 1760 99 99 115 90
Whippet 4 7 45 4 48.69 7 1760 103 103 115 90
Schnauzer 2 7 45 2 77.47 7 2800 157 157 150 120
Heeler 1/0 9 60 1/0 123.3 7 4460 250 250 205 160
* Code words for XLP insulated products are formed by adding "XLP" to the conventional code words above(e.g.-Chihuahua/XLP).
+ Conductor temperature of 90°C for XLP, 75°C for Poly; ambient temperature of 40°C; emissivity 0.9; 2 ft./sec. wind in sun.
++ Designated sizes are: ACSR 6/1 diameter equivalent and AAC with equivalent resistivity per ASTM B-399 for 6201.
Code Word Phase Conductor Bare Neutral Messenger Weight Per 1000ft (lbs.) Allowable Ampacities+

Size

(AWG)

Stranding

Insul. Thick.

(mils)

Size

(kcmil)

Stranding

Rated Strength

(lbs.)

XLPE POLY XLPE POLY
AAC NEUTRAL-MESSENGER
Pekingese 6 1 45 6 7 563 61 61 85 70
Collie 6 7 45 6 7 563 64 64 85 70
Dachshund 4 1 45 4 7 881 92 92 115 90
Spaniel 4 7 45 4 7 881 96 96 115 90
Doberman 2 7 45 2 7 1350 147 147 150 120
Malemute 1/0 9 60 1/0 7 1990 234 234 205 160
* Code words for XLP insulated products are formed by adding "XLP" to the conventional code words above(e.g.-Chihuahua/XLP).
+ Conductor temperature of 90°C for XLP, 75°C for Poly; ambient temperature of 40°C; emissivity 0.9; 2 ft./sec. wind in sun.
Code Word Phase Conductor Bare Neutral Messenger Weight Per 1000ft (lbs.) Allowable Ampacities+

Size

(AWG)

Stranding

Insul. Thick.

(mils)

Size

(kcmil)

Stranding

Rated Strength

(lbs.)

XLPE POLY XLPE POLY
ACSR NEUTRAL-MESSENGER
Setter 6 1 45 6 43252 1190 72 72 85 70
Shepherd 6 7 45 6 43252 1190 75 75 85 70
Eskimo 4 1 45 4 43252 1860 110 110 115 90
Terrier 4 7 45 4 43252 1860 115 115 115 90
Chow 2 7 45 2 43252 2850 176 176 150 120
Bull 1/0 9 60 1/0 43252 4380 280 280 205 160
* Code words for XLP insulated products are formed by adding "XLP" to the conventional code words above(e.g.-Chihuahua/XLP).
+ Conductor temperature of 90°C for XLP, 75°C for Poly; ambient temperature of 40°C; emissivity 0.9; 2 ft./sec. wind in sun.

Quality Control

Duplex Service Drop Cable
Duplex Service Drop Cable Material Test

Raw Material Test

NPC has always chosen raw material suppliers who have a good reputation, possess stable supply capabilities and have passed international quality system certifications (such as ISO 9001). And establish a long-term cooperative relationship with it, forming a stable and reliable raw material supply chain.
We will ensure that all raw materials are subject to strict inspection procedures upon entry to the factory, and can only be stored in the warehouse after they have been confirmed to meet the standards.

Duplex Service Drop Cable  Process inspection

Process inspection

NPC has strict quality control procedures for each process in the cable production process.
Process documents: Develop detailed process flow and operation instructions to clarify the operating specifications and quality standards of each process.
Equipment calibration: Regularly calibrate key equipment such as wire drawing machines, stranding machines, extruders, and diameter gauges to ensure that the accuracy meets the requirements.
First piece confirmation: Before each batch of production, the first piece is trial-produced to confirm that the process parameters, product dimensions, electrical performance, etc. meet the standards before mass production can be carried out.

Duplex Service Drop Cable  Finished Product

Finished Product

Inspectors conduct ex-factory inspections on cables according to relevant standards and corresponding product inspection specifications to ensure that each ex-factory product complies with the process regulations.

Application

Duplex Service Drop Cable is suited for use as drop cable from a pole-mounted transformer to the service entrance of a structure, or as secondary distribution between poles. The cable should be limited to 600V phase to phase and not exceed 90˚C.

Technical Advantages

● 30+ years of manufacturing experience
● ISO and UL certified production
● Customized cable and transformer solutions

Product Packaging

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FAQ From Customers

What are the advantages of power cables and overhead lines?
(1) Reliable operation, because it is installed in a hidden place such as underground, it is less damaged by external forces, has less chance of failure, and the power supply is safe, and it will not cause harm to people;
(2) The maintenance workload is small and frequent inspections are not required;
(3) No need to erect towers;
(4) Help improve power factor.
Which aspects should be considered when choosing the cross section of a power cable?
(1) The long-term allowable working current of the cable;
(2) Thermal stability once short circuited;
(3) The voltage drop on the line cannot exceed the allowable working range.
What are the measures for cable fire prevention?
(1) Use flame-retardant cables;
(2) Use fireproof cable tray;
(3) Use fireproof paint;
(4) Fire partition walls and fire baffles are installed at cable tunnels, mezzanine exits, etc.;
(5) Overhead cables should avoid oil pipelines and explosion-proof doors, otherwise local pipes or heat insulation and fire prevention measures should be taken.
What should be paid attention to during the transportation and handling of cables?
(1) During transportation, loading and unloading, cables and cable reels should not be damaged. It is strictly forbidden to push the cable reels directly from the vehicle. Generally, cables should not be transported and stored flat.
(2) Before transporting or rolling the cable reel, ensure that the cable reel is firm, the cable is wound tightly, the oil pipe between the oil-filled cable and the pressure oil tank should be fixed without damage, the pressure oil tank should be firm, and the pressure indication should meet the requirements.
What inspections should be carried out for the acceptance of cable lines?
(1) The cable specifications should meet the regulations, the arrangement should be neat, no damage, and the signs should be complete, correct and clear;
(2) The fixed bending radius of the cable, the related distance and the wiring of the metal sheath of the single-core power cable should meet the requirements;
(3) The cable terminal and the middle head should not leak oil, and the installation should be firm. The oil pressure of the oil-filled cable and the meter setting should meet the requirements;
(4) Good grounding;
(5) The color of the cable terminal is correct, and the metal parts such as the bracket are completely painted;
(6) There should be no debris in the cable trench, tunnel, and bridge, and the cover should be complete.

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