### Guidelines cabling of first 66 meter PIT-504 NbSn wires

## General

-   Applicable cable log sheet LHC-5-P-00767,a,b,c

# Mandril tip #39 C (the very same I hope)

-   Recommended connection scheme\
    1. preferred Cu leader : a few meters ?????\
    2. PIT-504 scrap wires from R-labelled spools, to be cut to 11 meter
    long pieces\
    (see table 2)\
    3. PIT-504 good wire from A-labelled spools, each 66-67 meter long\
    (see table 1), preferably positioned on the planetary wheel in the
    logical order\
    A1, A2,......, A35.\
    4. Cu tailer

-   The ends that are tape-marked **'punt'** on the A-spools
    [must]{.underline} be connected to the (PIT-504-scrap) leader wires.

-   Please mark the first 20 cm of 2 good PIT-504 wires with black and
    red ink and report their respective spool number. This enables us to
    trace the wires and their respective manufacturing origin.

**Proposed program.**

-   start cabling Cu leader

-   if OK, continue with about 5-6 meters of the PIT-504-scrap leader

-   stop cabling at this point, cut the cable for microscopic inspection
    of the cross-section. Points for inspection:\
    1. core: position and no folds, eventually correct core tension\
    2. symmetric deformation of both layers\
    3. no cross-over or other problems\
    At this point please call me by phone (+31 53 4778584) and send me
    pictures of the cross section by e-mail. We'll discuss the results
    on-line.

-   if OK, continue and complete the cabling run

## Return shipment

-   e-mail mrs. D. van der Vegte-Morsink (see attached shipping letter
    on the box) who will arrange the return shipment

-   use the same box for the cable spool and all the wire spools with or
    without remaining wire pieces.

Table 1. Spool labelling of the good PIT-504 NbSn wires

  ------------------------- ---------------------------------------------
  spool number:             measured length

                            \[m\]

                            

  A1                        66.9

  A2                        67.1

  A3                        67.0

  A4                        67.1

  A5                        66.8

  A6                        67.0

  A7                        66.7

  A8                        66.5

  A9                        66.7

  A10                       66.6

  A11                       66.6

  A12                       66.9

  A13                       66.8

  A14                       66.8

  A15                       66.8

  A16                       67.1

  A17                       67.1

  A18                       66.5

  A19                       66.5

  A20                       66.8

  A21                       67.2

  A22                       66.8

  A23                       66.8

  A24                       66.6

  A25                       66.7

  A26                       66.7

  A27                       66.7

  A28                       66.8

  A29                       66.8

  A30                       66.7

  A31                       66.9

  A32                       66.6

  A33                       66.7

  A34                       66.7

  A35                       66.6
  ------------------------- ---------------------------------------------

# **The wire ends are taped to the spools. The end with the tape-label 'punt' must be connected to the leader.**

# Table 2. Spool labelling of the scrap PIT-504 NbSn wires

  -------------- ------------- ------------------ ------------------------
  spool label    piece label   piece length       units of 11 meter

                               \[m\]              \[-\]

                                                  

  R1             A             21                 1

                 B             8.5                0

                 C             35                 3

  R2             A             53                 4

                 B             11                 1

  R3             A             13                 1

                 B             16                 1

                 C             11.5               1

  R4             A             11.5               1

                 B             16.3               1

                 C             18.7               1

  R5             A             19                 1

                 B             15.7               1

                 C             13                 1

  R6             A             22                 2

                 B             5.5                0

                 C             8                  0

  R7                           64                 5

  R8                           61                 5

  R9                           51                 4

  R10                          35                 3

                                                  

  Total                                           37
  -------------- ------------- ------------------ ------------------------