Fuse base for S&C SMD fuses from 36 to 72.5kV
- U-profile frame hot-dip galvanized according to UNE-EN ISO 1461
- Incorporates original active parts from S&C.
- Brown ceramic insulators according to UNE 21110-CEI 273.
- C4-170, C4-250, and C4-325
- Polymeric insulators made of injected silicone over a fiberglass core with external fittings that comply with all tests specified in UNE 21.909 standard.
General characteristics
Unipolar base for S&C SMD-1A fuses, 34.5kV and 69kV.
Unipolar and Tripolar base for S&C SMD-1A fuses, 46kV.
Tripolar bases for installation on lattice support equipped with galvanized steel mounting hardware. Operation in vertical position with 180º opening.
Live (active) parts for vertical installation with 180º opening – clamps and contacts – for direct mounting on 30/36kV, 45/52kV support insulators, and with an adapter (not supplied) for 66/72.5kV.
Descriptions and references
| Appropriate fuse type | Description | Reference | Insulator type | Rated voltage |
| SMD-1A 34,5kV | Fuse base I for SMD-1A fuse 34.5kV – V 180º | BSMD-1A 36 | Ceramic | 36kV |
| SMD-1A 46kV | Fuse base I for SMD-1A fuse 46kV – V 180º | BSMD-1A 52 | Ceramic | 52kV |
| Polym. fuse base I for SMD-1A fuse 46kV – V 180º | BSMD-1A 52P | Polymeric | ||
| Fuse base III for SMD-1A fuse 46kV | BSMD-1A 52 III | Ceramic | ||
| Polym. fuse base III for SMD-1A fuse 46kV | BSMD-1A 52 III P | Polymeric | ||
| SMD-1A 69kV | Fuse base I for SMD-1A fuse 69kV – V 180º | BSMD-1A 72,5 | Ceramic | 72.5kV |
| SMD-1A | Live parts – jaws and contacts – SMD-1A V 180º | 3700R3 | --- | --- |
Dimensions
| mm | BSMD-1A 36 | BSMD-1A 52 / 52P | BSMD-1A 72,5 |
| A | 1070 | 1070 | 1330 |
| B | 742 | 844 | 1047 |
| C | 970 | 970 | 1230 |
| D | 60 | 60 | 65 |
| E | 140 | 140 | 160 |
| F | 773 | 918 / 833 | 1133 |
| G | 600 | 745 / 660 | 960 |
| H | 968 | 1070 | 1272 |
| Kg. | 46 | 61 / 34 | 110 |