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This specification covers the requirements
for a cable termination for (bracket) (flange) mounted installation.
The termination shall be as manufactured by G&W
Electric Co. per product designation (ST) (STR) (RST) Sodertite
termination. The termination manufacturer shall be ISO
9001:2000 certified.
A. APPLICATION
The termination shall be used on the following
cable type:
___ Extruded dielectric, URD and shielded,
plastic or lead jacketed.
___ Paper or varnished cambric, shielded,
lead jacketed.
___ Low pressure gas or fluid filled.
B. CONSTRUCTION
The termination shall use high strength,
wet process porcelain for external insulation. The porcelain
shall be a petticoat design with skirt diameters sized to
provide an extra margin of strike and creepage distance. The
porcelain shall be coated with an external conducting glaze
between the bottom petticoat and cable entrance for additional
electrical strength. The terminations shall utilize
factory assembled metal-to-porcelain soldered joints for gasketless
sealing. Stress relief cones and insulating material
shall be used to effectively control electrical stresses in
the cable. Cable entrances and aerial hoods shall be
spun copper for high mechanical strength and a positive sealing
surface.
C. DESIGN RATINGS AND STANDARDS
Terminations shall meet all the design requirements
as specified by IEEE-48, 1975 standards for Class 1 terminations.
The termination shall be rated: (select column)
| Voltage class,
kV |
15 |
25 |
35 |
46 |
| Impulse level
(BIL), kV |
110 |
150 |
200 |
250 |
D. ACCESSORIES (check)
The following accessories shall be supplied:
___ Copper compression connector.
___ Aluminum compression connector.
___ Copper solder connector.
___ Style 4, clamp type aerial lug.
___ Style 8 bus type, vertical aerial lug.
___ Style 18 bus type, horizontal aerial
lug.
___ Wiping sleeve entrance fitting.
___ Stuffing box entrance fitting.
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