88

Part  B  -  Verifications  and  approval  requirements

If  tests  on  high-voltage  submarine  cables  cannot  be  performed  in  accordance  with  the  aforementioned ­
  standards,  reference  is  made  to  the  CIGRE  recommendations  in  their  current  version, ­
  published  in  the  following  issues  of  Electra  (CIGRE  in-house  journal):
•  CIGRE:  Recommendations  for  Mechanical  Testing  of  Submarine  Cables.  Electra  Vol.  171,
1997.
•  CIGRE:  Recommendations  for  Testing  of  Long  AC  Submarine  Cables  with  Extruded  Insulation ­
  for  System  Voltage  above  30  (36)  to  150  (170)  kV.  Electra  Vol.  189,  April  2000.
•  CIGRE:  TB  490,  Recommendations  for  Testing  of  Long  AC  Submarine  Cables  with  Extruded ­
  Insulation  for  System  Voltages  above  30(36)  to  500(550)  kV.

6.2.2.2  Direct  current  transmission
The  current  version  of  the  following  CIGRE  recommendation  can  be  used  for  all  direct  current
(DC)  cables:
•  CIGRE  Recommendations  for  Mechanical  Testing  of  Submarine  Cables.  Electra  Vol.  171,
1997.
The  following  CIGRE  recommendations  in  their  current  version  can  be  used  for  plastic-insulated ­
  high-voltage  direct  current  (HVDC)  cables:
•  CIGRE:  Recommendations  for  Testing  DC  Extruded  Cable  Systems  for  Power  Transmission
at  a  Rated  Voltage  up  to  250  kV.  Electra  Vol.  206,  2000.
•  CIGRE:  TB  496,  Recommendations  for  Testing  DC  Extruded  Cable  Systems  for  Power
Transmission  at  a  Rated  Voltage  up  to  500  kV.
The  following  CIGRE  recommendation  can  be  used  for  cables  with  mass-impregnated  paper ­
  insulation:
•  CIGRE:  Recommendations  for  Tests  of  Power  Transmission  DC  Cables  for  Rated  Voltages
up  to  800  kV.  Electra  Vol.  218,  2005.

6.3  Documents  to  be  submitted  for  the  approval
The  following  documents  must  be  submitted  6  months  before  the  start  of  the  cable  laying  at
the  latest:
[Doc.  No.  610]  Technical  description  of  the  cables:  incl.  specifications  of  the  cables,  junction
boxes,  crossing  constructions,  laying  equipment
[Doc.  No.  611]  Burial  Assessment  Study  (BAS):  On  the  basis  of  the  evaluated  results  of  the
cable  route  survey  (please  refer  to  the  Standard  Ground  Investigations,
Part  D)  for  the  model  of  laying  equipment  which  is  actually  available
(so-called  Installer  BAS)
The  following  documents  must  be  submitted  3  months  before  the  start  of  the  cable  laying  at
the  latest:
[Doc.  No.  612]  Construction  plan  incl.  preparatory  measures  for  the  construction  (e.  g.  prelay ­
  grapnel  run,  laying  of  a  mattress  when  building  crossing  constructions)
[Doc.  No.  613]  Detailed  description  of  the  cable-laying  procedure
As  part  of  the  approval  procedure,  BSH  reserves  the  right  to  demand  further  verifications  that
the  stipulated  minimum  burial  depth  is  achieved.