Bushings Clause Samples
Bushings. The requirements of this section are applicable to ceramic, treated paper, condenser and other bushings for use indoors or outdoors and may be with or without oil or other filling as appropriate.
Bushings. Motors shall be equipped with lower end head shaft steady bushings unless specified otherwise.
Bushings. For converting size of thermowell's internal screw thread to size of thermometer connection.
Bushings. A. The insulation level of line bushings shall be equal to or greater than the insulation level of the windings to which they are connected.
B. All windings leads (including the neutral) and core ground(s) shall be brought out and connected to terminal bushings. The bushings shall be designed, and terminations so made that no undue stressing of the bushings shall occur due to conductor expansion or temperature changes.
C. The bushing porcelain shall be gray glaze and manufactured by the wet process method and shall be homogenous, free from laminations, cavities or other flaws affecting its mechanical strength or dielectric qualities. The porcelain shall be well vitrified, tough, and impervious to moisture. The glazing shall be free of imperfections such as blisters or burns. High voltage bushings shall be paper-oil condenser bushings interchangeable with ANSI Standard bushings for power circuit breakers in the same voltage classes. Bushings shall be as manufactured by ABB or Lapp. (No substitutions).
D. High voltage bushings shall be located in Segment 3 and low voltage bushings shall be located in Segment 1, HOXO neutral bushing shall be located in Segment 2, per IEEE C57.12.10, Figures 7 and 8. The low voltage X2 bushing shall be on the same centerline with the high voltage H2 bushing.
E. Power factor test terminals shall be provided on all cover mounted high voltage bushings.
F. All necessary connectors and hardware shall be furnished for connecting the core ground bushings to the transformer ground.
G. Terminal stud connectors shall be provided as follows for the bushing and surge arrester studs: High Voltage ▇▇▇▇-▇▇▇▇▇ Test Terminals, 4 hole Low Voltage ▇▇▇▇-▇▇▇▇▇ Test Terminals, 4 hole Neutral (HOXO) Spade Terminals, 4 hole Core Ground Spade Terminals, 2 hole Surge Arresters Spade Terminals, 4 hole Tertiary Spade Terminals, 2 hole
1. On 69 KV and below, the X1, X2 and X3 bushings shall be supplied with bronze ▇▇▇▇-▇▇▇▇▇ test terminal stud connectors to tin plated, 4-hole flat pad, vertical take-off. (No substitutions).
2. On 230 KV bushings, the ▇▇▇▇-▇▇▇▇▇ test terminal stud connectors shall be bronze to tin plated, 4-hole flat pad, vertical take-off. (No substitutions).
3. On transformers with Delta connected tertiary windings, the winding shall be brought out on four bushings; two of these bushings shall be used for external closing of the Delta as specified in Section 2.04. All necessary connectors and hardware shall be furnished for connecting ne...
Bushings. Metallic insulating type, consisting of an insulating insert molded or locked into the metallic body of the fitting. Bushings made entirely of metal or nonmetallic material are not permitted.
Bushings. 7.9.1 Bushings shall be porcelain provided per IEEE C37.04.
7.9.2 All porcelain shall be ANSI No. 70 (Sky Gray) in color.
7.9.3 Bushing terminal connections provided by the Contractor shall be tinned bronze or aluminum four-hole pads with adjustable orientation to accommodate aluminum pipe bus conductor loads. Pads shall be one- piece, female threaded directly to the threaded bushing stud. Bushing terminal’s current carrying capacity shall be rated greater than or equal to circuit breakers rated continuous current.
7.9.4 Bushings shall be indelibly labeled with sufficient information to order replacements.
Bushings. 14.7.1 The bushings shall be horizontally positioned. The bushing-centre spacing and distances between the outer bushing-centres and the metal enclosure shall be required by specify voltage.
