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The nickel sleeves are strictly designed according IEC60360, for testing the temperature rising of incandescent lamps. The sleeves are made of nickel with purity no less than 99%, and the vickers hardness shall be 135°. A thermocoule shall be permanently attached to the lampholder sleeve, a spring wire shall be used around the outside of the sleeve.
| Purity of nickel | >99% min |
Thickness | 0.5mm±0.02mm |
Vickers hardness | >135°±15° |
Diameter of Spring Wire | Φ 0.8mm ∗ >1~1.5 turns around the sleeve |
| Model | E14/E20 lampholder (IEC60360 fig.3, inner size: 13.5mm) E17/E20 lampholder (IEC60360 fig.4) E26/E27 lampholder (IEC60360 fig.5) E39/E40 lampholder (IEC60360 fig.6) E14 lampholder (IEC60360 fig.7, inner size: 15mm) E14 lampholder (IEC60360 fig.8, inner size: 17mm) B22 lampholder (IEC60360 fig.9, inner size: 26mm) B15 lampholder (IEC60360 fig.10, inner size: 14.5mm) B15 lampholder (IEC60360 fig. 11, inner size: 22mm) B15 lampholder (IEC60360 fig. 12, inner size: 17.5mm) B22 lampholder (IEC60360 fig. 13, inner size: 21.5mm) E12 lampholder (IEC60360 fig. 14) |