Página 380 - BURNDY

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US: 1-800-346-4175
www.burndy.com
Canada: 1-800-387-6487
Blue highlighted items are industry standard and most frequently ordered.
BURNDY
®
Overhead
H-3
MECHANICAL
(BOLTED)
TAP CONNECTORS
BURNDY’s line of mechanical tap connec-
tors is the most complete, dependable and
economical available. These mechanical
connectors consist of service, parallel, and
midspan types.
Generally the alloys and hardware used
depend on whether the connector is for a
strain or current carrying application, and is
made of aluminum or copper. Particular
alloys and hardware are selected for
strength, conductivity, durability, ductility and
resistance to corrosion.
In a copper connector high strength alloys
are used in mechanical clamping compo-
nents and high conductivity alloy in current
carrying elements.
Aluminum clamp type connectors are made
of alloy 356, which is impervious to stress
corrosion. In its heat-treated state, it has high
strength and is used for both current carrying
and clamping elements.
Features and Benefits
• High strength alloys.
Provides efficient and reliable
performance.
• Range taking.
Accommodates a large range of
conductors in either groove reducing
inventory to a minimum.
• Matched groove designs.
Ensures maximum contact with
conductors accomodated.
• Hex bolts, nuts and washers.
Provides high contact pressure
and rapid assembly.
Hardware is high strength and corrosion-
resistant. In copper connectors, DURIUM™,
a silicone bronze alloy, is used. Anodized
aluminum alloy 2024-T4 bolts and 6061-T6
nuts are used in aluminum connectors. They
provide the best combination of strength,
resistance to galling and corrosion, and their
thermal coefficient of expansion is most suit-
able for aluminum. To insure dependable
connections, bolts should be tightened to the
recommended torque values shown below.
These mechanical tap connectors are mainly
used in overhead distribution systems to
provide primary service taps and/or second-
ary service drop connections to the end
users.
A few of the key features and benefits of
these connectors are:
Recommended Tightening Torque
Standard Wrench Size
Bolt Size
Recommended Torque (Inch
Lbs.)
Bolt
Nut
DURIUM™ and Galvanized Hardware
1/4 - 20
80
7/16
7/16
5/16 - 18
180
1/2
1/2
3/8 - 16
240
9/16
9/16
1/2 - 13
480
3/4
3/4
5/8 - 11
660
15/16
15/16
3/4 - 10
1050
1-1/8
1-1/8
Aluminum Hardware*
1/2 - 13
300
3/4
3/4
5/8 - 11
480
15/16
15/16
3/4 - 10
650
1-1/8
1-1/8
* Aluminum bolts are lubricated.