The Straight Connector is a fully shielded and insulatedtermination for connecting underground cable to transformers, switchgear.and other apparatus equipped with deadbreak bushings, junctions, or other deadbreak connectors.
The Straight Connector meets all the requirements of MS-50180 MS-50181 & lEC 60502, and is fully interchangeable with competitor's productsand mating products that meet MS-50180 & MS-50181.
Tests conducted in accordance with lEC 60502
· Partial discharge minimum extinction voltage-20kV
· AC 60Hz for 1min(kV crest)-54kV
1. SEMICONDUCTING SHIELD
Precision molded provides cured semiconducting shield ground shield continuity and meets the requirements of lEEE Standard 592
2. INSULATION LAYER
High quality peroxide cured EPDM Insulation is mixed and formulated in-house for complete control of rubber characteristics.
3. SEMICONDUCTING INSERT
Precision molded peroxide cured semiconducting insert provides corona-free electrostatic shielding of the compression connector
4. PIN PROBE
Tin plated copper probe allows for dependable switching operations.
5. COMPRESSION CONNECTOR
Standard Bi-Metal, or optional Copper, compression connector is sized to ensure a cool running connection with maximum current transfer.
6. CAPACITIVE TEST POINT
Capacitive test point on molded T-Body with snap-on cap provides a shielded, hot stick operable means to determine circuit condition.
7. DRAIN WIRE TAB
Drain wire tabs provide a convenient point to connect drain wire to ensure grounding of the connector shield.
8. OPERATING INTERFACE
Type A - 250A interface as described by MS50180 and 50181.
- MS
- 24kV 250A
- DSR
- X (Cable Range Code)
- Y (Conductor Code)
- Z (Enter C if a plated Copper Connectoris Desired, Bi-metal are standard)
Note : Bi-metal lug for use on copper and aluminum conductors. Copper lug for use on copper conductors only.
| Voltage Class | 24kV |
|---|---|
| AC for 5 Minute | 54kV |
| BIL and Full Wave Crest | 125kV |
| Partial discharge minimum extinction voltage | 20kV |
| Thermal Short Circuit (Conductor, 2 sec.) | 23kA/2s |
| Dynamic Short Circuit (Conductor, 10 sec.) | 82kA/10ms |
| Screen leakage current | less than or equal to 0.5mA |
| Cable Range Code | Inches | Millimeters |
|---|---|---|
| A | 0.630-0.820 | 16.0-20.8 |
| B | 0.700-0.920 | 17.8-23.1 |
| C | 0.830-1.100 | 21.6-27.9 |
| F | 0.770-0.950 | 19.6-24.1 |
| H | 0.929-1.039 | 23.6-26.4 |
| J | 1.098-1.318 | 27.9-33.5 |
| Conductor Code | AWG or kcmil | mm² |
|---|---|---|
| 01 | 3 | 25 |
| 02 | 2 | 35 |
| 03 | 1/0 | 50 |
| 04 | 2/0 | 70 |
| 05 | 3/0 | 95 |
| 06 | 4/0 | - |
| 07 | 250 | 120 |