Residential Construction Academy: House Wiring (MindTap Course List)
4th Edition
ISBN: 9781285852225
Author: Gregory W Fletcher
Publisher: Cengage Learning
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Question
Chapter 8, Problem 1RQ
To determine
The description of the purpose of a weatherhead.
Expert Solution & Answer
Explanation of Solution
Weatherhead is the fitting located on the service drop end of the service entrance raceway or service entrance cable. The other name of weatherhead is a service head.
Weatherhead is designed for the reduction of the moisture amount which can access the raceway or cable.
The aim of the weatherhead is to prevent water from entering the end of a service entrance cable. Every service entrance conductor has to exit the weatherhead from a separate hole.
Service raceways at the connection point should be fitted with a weatherhead to overhead service conductors. Service entrance cables should be fitted with a weatherhead specified for use in a place that's wet. Through independently bushed openings in the weatherhead, service entrance conductors should be carried out.
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Assignment 1
Q1) Determine the member end forces of the frames shown by utilizing structural symmetry and anti-symm. (Derive each
member forces and show BMD,SD,AFD)
20 kN/m
40 kN/m
C
D Hinge Ẹ
G
A
-3m 5m
B
5 m 3 m-
E, I, A constant
12 m
A1.3- Given the floor plan shown in Figure 3. The thickness of the slab is 150mm. The floor finish, ceiling and
partition load is 1.8 kN/m². The live load on the floor is 2.4 kN/m². The beams cross section dimension is
300mmx600mm. Assuming the unit weight of concrete is equal to 24 kN/m². It is required to:
a) Show tributary areas for all the beams on the plan;
b) Calculate the load carried by beams B1 (on gridline A, between 1 and 3), B2 (on gridline B, between 1 and
3)and B3 (on gridline 3, between A and C);
c) Calculate the load carried by column C1 per floor (ignore the self weight of the column).
A
1
B1
2
B2
B
Cl
8.0 m
Figure 3
8.0 m
B3
23
3
*2.0m
5.0 m
4.0 m
+1.5m+
Chapter 8 Solutions
Residential Construction Academy: House Wiring (MindTap Course List)
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