Page 9 - puget sound energy community energy programs

Table of contents

Figure 19 Unguyed service masts ................................................. 32
Figure 20 Guyed service masts ................................................... 33
Figure 21 Permanent overhead meter pole installation .................................. 36
Figure 22 Typical joint utility trench with primary voltage cable on your private property ......... 39
Figure 23 Padmount transformer vault excavation ..................................... 42
Figure 24 Aboveground junction box vault excavation .................................. 42
Figure 25 Minimum dimensions of excavation requirements for small secondary handholes ..... 43
Figure 26 Location of customer conduit in PSE vaults .................................. 44
Figure 27 Meter base/socket minimum clearances .................................... 48
Figure 28 Recessed meter installation clearances ..................................... 49
Figure 29 Residential meter socket wiring diagrams ................................... 50
Figure 30 Typical arrangement of service conductors for underground class 320
meter base/socket ..................................................... 51
Figure 31 Typical arrangement of service conductors for overhead class 320 meter base/socket . 52
Figure 32 Instrument-rated (CT) meter bases/sockets .................................. 53
Figure 33 Single-phase CT mounting base .......................................... 54
Figure 34 Trenching requirements for power stubout ................................... 61
Figure 35 Temporary underground service installation .................................. 63
Figure 36 Minimum clearance requirements upon installation ............................ 65
Figure 37 Temporary overhead service installation ..................................... 66

Electric Service Handbook 2017 — Single-Family Residential Projects