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3.1 Indication of origin and cable identification
. r* b7 q1 F# T/ @2 WCables shall be provided with an indication of the manufacturer, which shall be either an+ `5 K4 M3 M F% u K
identification thread or a repetitive marking of the manufacturer's name or trade-mark.5 y6 g! v* c6 A. p! S Q. d0 X
Cables for use at a conductor temperature exceeding 70 °C shall also be marked either with- ?2 D, d% v% @8 X. ~
the code designation or with the maximum conductor temperature.
& G2 _" ^' Z9 O2 D5 i1 XMarking may be by printing or by reproduction in relief on or in the insulation or sheath.
- n* }$ n+ @3 r* Z0 a3.1.1 Continuity of marks! Y2 Y b+ r3 x. w: A# ]1 h8 u
Each specified mark shall be regarded as continuous if the distance between the end of the
. Z0 _& \8 M6 Imark and the beginning of the next identical mark does not exceed
. T$ }1 Y5 M6 g9 g, y– 550 mm if the marking is on the outer sheath of the cable;7 p5 A8 A1 {, P
– 275 mm if the marking is
3 j, ]* F/ B" ]3 G" D. la) on the insulation of an unsheathed cable;
" {1 B) U, w. t* B8 Z: \7 _; Vb) on the insulation of a sheathed cable;
4 N" r' n% X( K# l# zc) on a tape within a sheathed cable.
% `! G6 h# a! m9 I% w3.2 Durability1 \: d# i$ E) Q1 x# ?, z9 Y' |# E
Printed markings shall be durable. Compliance with this requirement shall be checked by the
# n" g- E8 a7 C" l8 O8 otest given in 1.8 of IEC 60227-2.8 k P Q) \$ W5 S
3.3 Legibility" a2 ~1 s9 k8 ?
All markings shall be legible./ s% W/ d: {2 Z2 d+ P0 X) K
The colours of the identification threads shall be easy to recognize or easily made- Q& g! F6 R9 x# {% ]8 ?* {
recognizable, if necessary, by cleaning with petrol or other suitable solvent. |
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