GB/T 16904.1-2006Checking of rolling stock clearance for standard gauge railways - Part 1: Inspection methods (English PDF)

GB/T 16904.1-2006 is the English-translated version of 标准轨距铁路机车车辆限界检查 第1部分:检查方法.

China's national method for checking that a locomotive or a wagon fits inside the clearance outline it is allowed to occupy. It is Part 1 of GB/T 16904 and specifies the methods for inspecting the clearance of rolling stock on standard gauge railways.

The rolling stock gauge is the envelope a vehicle must stay within so that it passes platforms, tunnels, bridges, signals and lineside structures without touching them, and so that two vehicles on adjacent tracks pass each other.

It is not the same as the structure gauge and the margin between them is small. A vehicle that violates it by a few centimetres at one point - a mirror, a lamp, a door handle, a loaded tarpaulin, a step - is a hazard on every line it runs.

The check has to be made on the finished vehicle, because the drawings do not capture what the shops actually built, and it has to be repeatable, because the result is a permission to operate.

The methods cover how the vehicle is prepared and positioned, on level and straight track with the suspension in a defined state, since ride height and lateral play both change the measured outline.

They cover the measurement itself, whether by a template or gauge frame passed over the vehicle or by point-by-point measurement referred to the track centreline and the rail level, and they cover which points must be measured - the ones that project, the ones that move, and the ones that move when the vehicle is loaded.

And they cover how the measured values are compared with the permitted outline, including the allowances that have to be made for the displacements a vehicle undergoes in service that a static check cannot reproduce.

Issued on 14 December 2006 and in force since 1 May 2007, it replaces GB/T 16904.1-1997.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

GB 146.1-2020|GB 146.2-2020|GB/T 16904.1-1997|GB/T 15165-1994|GB/T 12818-2021|GB/T 3317-2006

1. 1

   Add to cart

   Click "Download PDF" on this page and choose "Buy this standard". You can add more standards before checkout.

2. 2

   Checkout

   Enter your email and billing details. Payment is processed securely by Stripe (cards or bank transfer). Prefer bank details? Request a quotation (min. order $300).

3. 3

   Instant delivery (0–9 sec)

   Delivery is automatic: within seconds of payment you'll receive an email with a secure download link. The link stays valid for 72 hours.

4. 4

   Invoice included

   A tax invoice is attached to the confirmation email. Need a custom invoice? Contact us.